Construction enterprise bid inviting and purchasing platform based on Internet and method thereof

Abstract

The invention relates to the technical field of enterprise management, and discloses a construction enterprise bid inviting and purchasing platform based on the Internet and a method thereof. The bid invitation purchasing platform specifically comprises a supplier registration and filing module, a bid invitation file compiling and registering module, a bid invitation file auditing and publishing module, a supplier registration and bidding module, a bid opening management module, a bid evaluation management module, a calibration management module, a performance margin payment module and a bid winning notification issuing module. According to the invention, by establishing the enterprise electronic collection platform, the bidding and tendering process is electronized, the bidding and tendering informatization level and the bidding and tendering operation efficiency and quality are improved, the bidding and tendering process is perfected, the purchase cost is reduced, and the purchase quality is ensured. The electronic, standardized and automatic operation of the whole process from project approval, bid invitation announcement publishing, bid opening, bid evaluation to calibration is realized, marks are reserved in the whole process, real-time supervision and afterward tracing of supervision departments are facilitated, and the transparency and fairness of the bid invitation process are effectively enhanced.

Description

Technical Field

[0001] The present invention relates to the technical field of enterprise management, and specifically provides an Internet-based bidding and procurement platform for construction enterprises and a method thereof. Background Art

[0002] With the gradual expansion of the business scale of various enterprises, the management scope of enterprise companies is becoming wider and wider, and the management geographical span is also becoming wider and wider. Facing the business situation of numerous points, long lines, and wide areas, the traditional offline procurement method restricts the bidding and procurement work of labor and materials of the group. Chinese Patent No. 202310892626.7 discloses an Internet-based bidding management platform and a management method. The bidding management platform first analyzes the bidding information issued by bidding users to improve the bidding efficiency and enhance the bidding effect. Then, it analyzes the contract signing assistance personnel when signing the contract, which can ensure the smoothness and security of online contract signing, avoid damaging the interests of both user parties, guarantee the rights and interests of users, and improve user satisfaction.

[0003] However, the traditional bidding and procurement work requires a large amount of manpower and material resources, and the long procurement cycle affects the project production progress. Moreover, it cannot well grasp the dynamic market price of materials, does not understand the changes in the types, prices, and performance of materials, and is unable to select the optimal supplier. The procurement of materials is carried out dispersedly, and the negotiation and pricing are carried out one-on-one with suppliers. Personal factors play a decisive role, lacking an open bidding and tendering mechanism, the purchase decision-making method is not transparent, the quality of materials cannot be guaranteed, which affects the quality of the project. In addition, it is difficult to effectively identify the contract performance ability of suppliers for specific requirements. Summary of the Invention

[0004] The present invention provides an Internet-based bidding and procurement platform for construction enterprises and a method thereof, which can effectively solve the problems mentioned in the above background art, that is, the traditional bidding and procurement work requires a large amount of manpower and material resources, the long procurement cycle affects the project production progress, and it cannot well grasp the dynamic market price of materials, does not understand the changes in the types, prices, and performance of materials, is unable to select the optimal supplier, the procurement of materials is carried out dispersedly, the negotiation and pricing are carried out one-on-one with suppliers, personal factors play a decisive role, lacking an open bidding and tendering mechanism, the purchase decision-making method is not transparent, the quality of materials cannot be guaranteed, which affects the quality of the project. In addition, it is difficult to effectively identify the contract performance ability of suppliers for specific requirements.

[0005] To achieve the above object, the present invention provides the following technical solution: An Internet-based bidding and procurement platform for construction enterprises, through the deep integration of the Internet technology of computer networks and enterprise bidding and procurement management, constructs and develops an electronic bidding and procurement platform, reorganizes the bidding and tendering business, optimizes and reorganizes the work process, and performs a series of business operations such as online bidding, tendering, opening, and evaluation online.

[0006] The tender procurement platform specifically includes a supplier registration and filing module, a tender document compilation and registration module, a tender document review and release module, a supplier bid registration module, an opening management module, a bid evaluation management module, a winning bid determination management module, a performance bond payment module, and a winning bid notice issuance module.

[0007] According to the above technical solution, the supplier registration and filing module enables suppliers to register and upload relevant materials required for filing through the implementation of a supplier registration and filing system. After registration, the relevant registration information and uploaded materials are entered.

[0008] The supplier registration and filing module is pushed to the enterprise I8 project management system, and then the filing review is carried out according to the process. After passing the filing review, it enters the qualified supplier database.

[0009] According to the above technical solution, the tender document compilation and registration module conducts tender project registration before tender document review, and determines the object of tender procurement, the content of tender procurement, and the method of tender procurement.

[0010] The tender procurement methods included in the tender document compilation and registration module are: invited tender, inquiry tender, negotiated tender, and public tender. The detailed content of the tender project registration form specifically includes the material procurement plan and the resource demand plan list.

[0011] When the tender documents are non-compliant or missing, some tender documents will be judged as invalid or not meeting the requirements. The system should adjust the tender price according to the actual situation. The improved cost optimization formula can add a "compliance coefficient" A i , used to measure the compliance degree of each tender document. The tender project cost formula is as follows:

[0012]

[0013] Where:

[0014] C is the total project cost;

[0015] Q i is the procurement quantity of the i-th material;

[0016] P i is the unit price of the i-th material;

[0017] A i is the compliance coefficient, and its value range is [0, 1];

[0018] If all the tender documents are compliant, the compliance coefficient A i is 1;

[0019] If a certain tender document is non-compliant, the compliance coefficient A iIt will be reduced, thus affecting cost calculation and reducing the winning chances of non-compliant suppliers;

[0020] When the bidding documents are non-compliant or missing, it will lead to incomplete or untrue data, increasing the risk of tendering. Therefore, a compliance coefficient is introduced to calculate the total risk value. The formula for calculating the total risk value is as follows:

[0021]

[0022] Where:

[0023] R is the total risk value;

[0024] C i is the procurement cost of the i-th item of materials;

[0025] I i is the risk impact coefficient, specifically the statistical analysis of historical data to calculate the occurrence frequency of risks and the product of the calculated frequency and the impact degree;

[0026] H i is the risk probability;

[0027] A i is the compliance coefficient, with a value range of [0, 1];

[0028] If there are missing or non-compliant situations in the bidding documents, the total risk value will automatically increase because non-compliant documents increase the uncertainty and implementation risks of the project;

[0029] When the bidding documents are non-compliant, the weight of the bidding method they participate in needs to be reduced to avoid non-compliant documents affecting the overall tendering strategy. The formula for allocating the weight of the bidding method is as follows:

[0030]

[0031] Where

[0032] W i is the weight of the i-th bidding method;

[0033] C i is the cost of the i-th bidding method;

[0034] A i is the compliance coefficient, with a value range of [0, 1];

[0035] If the bidding documents of a certain supplier are non-compliant, the weight W of the bidding method of this supplier i will be correspondingly reduced, so that even if the supplier's quotation is low, its impact on the final winning result will be weakened;

[0036] Through statistical analysis of non-compliant bidding documents, the compliance of suppliers can be evaluated and the comprehensive score of suppliers can be calculated. The specific calculation formula is as follows:

[0037]

[0038] in:

[0039] S i is the comprehensive score of the i-th supplier;

[0040] W j is the weight of the jth evaluation criterion;

[0041] s ij The score of the i-th supplier on the j-th criterion;

[0042] A i is the compliance coefficient, with a value of [0,1];

[0043] In order to comprehensively evaluate the overall benefits of the bidding project, benefit evaluation items can also be added, taking into account cost, risk, weight and supplier rating, where supplier rating S i Incorporate comprehensive benefit evaluation, taking into account the better overall performance of high-scoring suppliers, and calculate the comprehensive benefits. The specific calculation formula is as follows:

[0044]

[0045] in:

[0046] E is the comprehensive benefit score;

[0047] C is the total cost;

[0048] S i is the comprehensive score of the i-th supplier;

[0049] R is the total value at risk;

[0050] W i is the weight of the i-th bidding method;

[0051] The smaller the comprehensive benefit score E, the higher the cost-effectiveness. Reflecting the project benefits based on the comprehensive benefit score E can help decision makers make the best choice.

[0052] According to the above technical solution, the bidding document review and release module will quote the bidding project registration information in the bidding announcement, and further determine the supplier registration time, bid opening time, bid deadline, relevant bidding requirements and bidding document information;

[0053] The bidding document review and release module releases the bidding documents to the electronic bidding and procurement platform after approval by relevant personnel of the business department;

[0054] After the tender documents are released to the e-procurement platform, in case of clarification instructions or change items, the clarification instructions and changed information will be re-released to the e-procurement platform by means of re-release. When the bid opening time is delayed, the bid opening time can also be extended through the extension function of the tender announcement.

[0055] After the tender documents are released to the e-procurement platform, it is also necessary to encrypt the registration details of suppliers. That is, before the bid opening, the system only shows the number of bidding suppliers, and no one has the right to query the suppliers' quotations. When the bid opening time arrives, the quotations of the bidders can be shown only after the operation by the personnel of the bidding office.

[0056] According to the above technical solution, the supplier registration and bidding module refers to pushing the tender announcement to the UIC supplier portal before the supplier registers. All eligible suppliers on the e-procurement platform can preview the tender announcement. Eligible suppliers who meet the requirements of the tender announcement can choose to register according to their own needs and download the tender documents.

[0057] According to the above technical solution, the bid opening management module is used to determine the evaluation deadline and evaluation method, maintain and fill in the evaluation indicators according to different types of tenders, maintain and fill in the evaluation experts. The form details in the bid opening are introduced from the tender announcement to avoid repeated manual entry.

[0058] The information of the list of bidding units, the summary of bidding prices, and the evaluation results in the form will be automatically written back to the corresponding list after the evaluation task is completed, which is convenient for viewing the bidding, quotation, and evaluation situations of this tender.

[0059] The evaluation management module refers to that after the bid opening management is approved, the corresponding evaluation personnel will receive the corresponding evaluation tasks. The evaluation personnel select the winning bidder according to the quotation and evaluation method. They can randomly select members from the group expert database for evaluation. The evaluation can be completed on a computer or a mobile phone. The evaluation process and results are recorded in the I8 system and form the evaluation results.

[0060] In addition, during the evaluation process, with the help of the intelligent matching algorithm built into the e-procurement platform, potential suppliers that meet the requirements can be quickly screened out based on the conditions set by the purchaser and the information submitted by the suppliers, and accurate matching and recommendation can be carried out between the purchaser and the suppliers to improve the sourcing efficiency in the early stage of the tender.

[0061] According to the above technical solution, after the bid evaluation is completed, the calibration management module quotes the winning bidder and the detailed quotation of the bid evaluation. After internal approval, the winning bid result is released to the e-procurement platform. At the same time, the winning supplier unit will also receive a pre-winning notice. After receiving the notice, the result is confirmed on the platform. There may be one or more winning bid units and winning bid prices. When there are multiple winning bid units in the same bid, the winning bid notice can be pushed to the corresponding winning bid units simultaneously;

[0062] When confirming the result, through the safe and efficient online communication tool provided inside the e-procurement platform, it supports the purchaser and the supplier to communicate project details and clarify doubts, ensuring information symmetry between both parties, enabling the winning supplier unit to communicate with the purchaser in a timely manner during result confirmation, and promoting the achievement of cooperation;

[0063] After the winning bid unit confirms on the platform, the pre-winning bid notice is introduced into the tender document form, and after internal approval of the relevant information, the final confirmation is carried out.

[0064] According to the above technical solution, the performance bond payment module specifically refers to that the winning bidder who forms a contract relationship with each branch and subsidiary of the enterprise for the first time and the winning bidder who has cooperated before but whose outstanding amount is less than the performance bond amount need to pay the performance bond. After paying the performance bond according to the requirements of the tender document, the finance department generates a winning bid notice after verification;

[0065] While the winning bidder who has cooperated before but whose outstanding amount meets the performance bond amount directly generates a winning bid notice;

[0066] The winning bid notice issuance module means that after the winning bid notice is automatically generated on the e-procurement platform, the company will issue the winning bid notice to the winning bid unit through the e-procurement platform. After receiving the winning bid notice, the winning bid unit automatically generates labor and material procurement contracts by referring to the content of the winning bid notice.

[0067] According to the above technical solution, a tendering and procurement method for construction enterprises based on the Internet, according to a tendering and procurement method of a tendering and procurement platform for construction enterprises based on the Internet, includes the following steps:

[0068] S1. Enable suppliers with bidding intentions to register and file information;

[0069] S2. Compile the tender documents of the purchaser and conduct registration processing;

[0070] S3. After approving the tender documents, release the documents;

[0071] S4. Enable suppliers to sign up for bidding based on the released tender documents;

[0072] S5. Conduct bid opening, bid evaluation, and calibration management through the approvers;

[0073] S6. Pay the performance bond and issue the winning bid notice.

[0074] According to the above technical solution, in S1, by implementing the supplier registration and filing system, suppliers with the intention to bid are required to upload relevant materials needed for filing when registering, and after the registration is completed, the uploaded relevant registration information and materials are filed.

[0075] In S2, the purchaser needs to prepare the bidding documents according to the procurement requirements. In the bidding documents, the scope of objects for bidding procurement, the content of bidding procurement, and the method of bidding procurement need to be determined, and the bidding documents need to be registered before the review of the bidding documents.

[0076] In S3, it means that after the bidding documents are prepared and registered, they are reviewed by relevant personnel of the business competent department, and after the review is qualified, the registered information of the bidding documents is cited as the bidding announcement for release. In the bidding announcement, the registration details of the suppliers need to be encrypted.

[0077] In S4, in S3, after the bidding announcement is released, the bidding announcement will be correspondingly pushed to the suppliers who have completed information registration and filing. After receiving the pushed bidding release documents, the suppliers can choose to register according to their own needs after determining that they meet the requirements of the bidding documents, and download the bidding release documents.

[0078] The bid opening management is used to determine the bid evaluation deadline and the bid evaluation method, and maintain and fill in the bid evaluation indicators according to different types of bids. The bid evaluation management means that the bid evaluators select the winning bidder according to the quotations and bid evaluation methods. With the help of the built-in intelligent matching algorithm, according to the conditions set by the purchaser and the materials submitted by the suppliers, potential suppliers that meet the requirements are quickly screened out to determine the winning bidder.

[0079] The bid determination management, after the bid evaluation is completed, quotes the winning bid unit and the quotation details of the bid evaluation, and after internal approval, releases the winning bid result to the e-bidding and procurement platform. The supplier unit will receive the pre-winning bid notice and confirm the result.

[0080] In S6, it means that the winning supplier unit, after receiving the notice of the middle result and confirming the result, needs to pay the performance bond, and after the financial verification of the payment is completed, generate the winning bid notice and issue the winning bid notice to the winning supplier unit.

[0081] Compared with the prior art, the beneficial effects of the present invention are:

[0082] 1. Through the deep integration of Internet technology and enterprise bidding and procurement management, build and develop the enterprise's own e-bidding and procurement platform, and integrate the existing enterprise internal ERP system with the e-bidding and procurement system to achieve true internal and external connectivity of e-bidding and procurement, create the enterprise's own one-stop service platform, achieve the goal of reducing the full-process management cost of material procurement, be able to accurately provide various data and records for the enterprise's procurement management work, realize networked supervision and management, real-time procurement control, and transparent cost savings. At the same time, be able to establish an enterprise price information system internally, expand the procurement sourcing scope, introduce more high-quality suppliers, and effectively control the material procurement cost price.

[0083] 2. Through the e-bidding and procurement platform, it has changed the traditional paper-based bidding and tendering method, created an efficient and transparent bidding market competition environment, promoted fair transactions, standardized the market order, been able to provide a transaction business processing platform for suppliers, and achieved the full-process electronicization of enterprise procurement transaction operation and execution through efficient, safe, and reliable business processing, achieving the purpose of saving procurement costs. It can also provide timely and accurate analysis data of enterprise procurement for the decision-making level, realize scientific procurement decision-making basis and systematic cost analysis, integrate with the enterprise project management system, ensure the interconnection and interoperability of information among all relevant departments of the procurement business, avoid manual completion of information transmission, avoid duplicate work, and improve information transmission efficiency.

[0084] In summary, by establishing an enterprise e-bidding and procurement platform, the bidding and tendering process has been electronicized, improving the informatization level, operation efficiency, and quality of bidding and tendering, improving the bidding and tendering process, reducing procurement costs, ensuring procurement quality, making material bidding and procurement management more efficient, opening a new chapter in material procurement management, having important practical value, and having important reference significance for promoting the construction of the modern supply chain in the engineering industry;

[0085] In addition, the enterprise e-bidding and procurement platform strictly follows national laws, regulations, and the enterprise's internal bidding system, realizing the electronic, standardized, and automated operation of the full process from project establishment, tender announcement release, bid opening, bid evaluation to bid awarding, leaving a trace throughout the process, facilitating real-time supervision and post-event traceability by the supervision department, effectively enhancing the transparency and fairness of the bidding process. At the same time, the system intelligently optimizes the entire bidding and procurement process according to the compliance, risk, cost, weight of bidding methods, supplier scoring, and comprehensive benefit evaluation of the bidding documents, ensuring the transparency, fairness, and efficiency of decision-making. In actual operation, in the case of non-compliant or missing bidding documents, the system can automatically adjust to reduce the winning chance of non-compliant bids and ensure the optimality of procurement decisions. Description of the Drawings

[0086] The accompanying drawings are used to provide a further understanding of the present invention and form a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation to the present invention.

[0087] In the accompanying drawings:

[0088] Figure 1 is the structural framework diagram of the tendering and procurement platform of the present invention;

[0089] Figure 2 is the flowchart of the tendering and procurement method of the present invention. Detailed implementation manners

[0090] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention and are not used to limit the present invention.

[0091] Embodiment: As Figure 1 shown, the present invention provides a technical solution, an Internet-based tendering and procurement platform for construction enterprises. By deeply integrating the Internet technology of computer networks with enterprise tendering and procurement management, an e-tendering and procurement platform is built and developed, the tendering and bidding business is reorganized, the work process is optimized and reorganized, and a series of business operations such as online tendering, bidding, opening bids, and evaluating bids are performed online to achieve efficient, professional, standardized, safe, and low-cost tendering and bidding management;

[0092] The tendering and procurement platform specifically includes a supplier registration and filing module, a bidding document compilation and registration module, a bidding document review and release module, a supplier registration and bidding module, an opening bid management module, an evaluation bid management module, a bid determination management module, a performance bond payment module, and a winning bid notice issuance module.

[0093] Based on the above technical solution, the supplier registration and filing module implements a supplier registration and filing system, enabling suppliers to register and upload relevant materials required for filing through the supplier portal. After registration, the relevant registration information and uploaded materials entered will be pushed to the enterprise I8 project management system, and then subject to filing review according to the process. After passing the filing review, they will enter the qualified supplier library.

[0094] Based on the above technical solution, the bidding document compilation and registration module conducts tender project registration before the review of bidding documents, and determines the object of tendering and procurement, the content of tendering and procurement, and the method of tendering and procurement;

[0095] Among them, the tendering and procurement methods include: invited tendering, inquiry tendering, negotiated tendering, and public tendering. The detailed content of the tender project registration form specifically includes the material procurement plan and the resource demand plan list;

[0096] If the company needs to purchase a batch of office equipment, including computers, printers, office desks and chairs and other supplies, with a total project budget of 5 million yuan, in order to ensure the fairness and efficiency of the bidding process, the company decides to use an e-bidding platform based on computer network and intelligent system for bidding management;

[0097] The company registered a bidding project on the e-bidding platform, clarified the objects, content and methods of procurement. The bidding content included a variety of office equipment, such as computers, printers, office desks and chairs, etc. The bidding procurement method was selected as public bidding to ensure fair competition. The detailed material procurement plan and resource demand plan list, including the quantity and unit price of each material, were filled in the bidding project registration form;

[0098] The bidders submitted three bidding documents, which were the quotations of Supplier A, Supplier B and Supplier C respectively. The system conducted an automated compliance check on each bidding document, and the results were as follows:

[0099] The document of Supplier A was complete and met all the bidding requirements, so its compliance coefficient A A = 1;

[0100] The document of Supplier B was missing the qualification certificate, so its compliance coefficient A B = 0.8;

[0101] There were serious omissions in the bidding document of Supplier C, and the quotation form was not provided. The compliance coefficient A C = 0.

[0102] When the bidding document is non-compliant or missing, some bidding documents will be judged as invalid or not meeting the requirements. The system should adjust the bid price according to the actual situation. The improved cost optimization formula can add the "compliance coefficient" A i , which is used to measure the compliance degree of each bidding document. The cost formula of the bidding project is as follows:

[0103]

[0104] Where:

[0105] C is the total project cost;

[0106] Q i is the procurement quantity of the i-th material;

[0107] P i is the unit price of the i-th material;

[0108] A i is the compliance coefficient, with a value of 1 or 0. If the bidding document is completely compliant, then A i = 1. If the bidding document is non-compliant, then A i= 0 or reduced to a certain value;

[0109] If a tender document is non - compliant, the compliance coefficient A i will be reduced, thus affecting the cost calculation and reducing the winning chance of non - compliant suppliers;

[0110] Assume the number of computers purchased is 100, with a unit price of 5000 yuan each, the number of printers is 50, with a unit price of 2000 yuan each, and the number of office desks and chairs purchased is 50 sets, with a unit price of 1000 yuan per set. Then, the specific calculation is as follows:

[0111] The quotation of Supplier A: C A =(100×5000 + 50×2000 + 50×1000)×1 = 500000+100000 + 50000 = 650,000 yuan;

[0112] The quotation of Supplier B: C B =(100×5000 + 50×2000 + 50×1000)×0.8 = 650000×0.8 = 520000 yuan;

[0113] The quotation of Supplier C: C C =(100×5000 + 50×2000 + 50×1000)×0 = 0 yuan;

[0114] When the tender document is non - compliant or missing, it will lead to incomplete or untrue data, increasing the risk of bidding. Therefore, a compliance coefficient is introduced to calculate the total risk value. The formula for the total risk value is as follows:

[0115]

[0116] Where:

[0117] R is the total risk value;

[0118] C i is the procurement cost of the i - th item of materials;

[0119] I i is the risk impact coefficient, reflecting the possible risks and impact degrees in material procurement. Range: 1 - 5, 1 indicates low impact, and 5 indicates high impact;

[0120] H i is the risk probability, a probability value between 0 and 1. 0 indicates no risk, and 1 indicates certain occurrence;

[0121] If there are missing or non - compliant situations in the tender document, the risk value will automatically increase because non - compliant documents may increase the uncertainty and execution risks of the project;

[0122] In the system, the risk impact coefficient and risk probability have been preset. Based on the types of materials in the project and the information provided by the suppliers, the system conducts a risk assessment:

[0123] There are no non - compliant situations in the bid of Supplier A. Therefore, its risk assessment value is: R A =(500000×3×0.2 + 100000×2×0.1 + 50000×1×0.05)=300,000 + 20,000 + 2,500 = 322500;

[0124] There are non - compliant problems in the bid of Supplier B. The system assesses that its risk has increased, and the risk assessment value is: R B =(520000×3×0.2 + 100000×2×0.1 + 50000×1×0.05)×1.2 = 387000;

[0125] The bidding documents of Supplier C are seriously missing. The system automatically increases its risk assessment value to: R C =(0)×1.5 = 0;

[0126] When the bidding documents are non - compliant, the weight of the bidding method they participate in needs to be reduced to avoid non - compliant documents affecting the overall bidding strategy. The weight distribution formula for the bidding method is as follows:

[0127]

[0128] Where

[0129] W i is the weight of the i - th bidding method;

[0130] C i is the cost of the i - th bidding method;

[0131] A i is the compliance coefficient, and its value range is [0,1];

[0132] If the bidding documents of a certain supplier are non - compliant, the weight W i of the bidding method of this supplier will be correspondingly reduced. In this way, even if the supplier's quotation is low, its impact on the final winning bid result will be weakened;

[0133] Since the bidding documents of Supplier C are non - compliant, the system reduces the weight of its bidding method. The calculation is as follows:

[0134]

[0135] Through the statistical analysis of non - compliant bidding documents, the compliance of suppliers can be evaluated, and then the comprehensive score of suppliers can be calculated. The specific calculation formula is as follows:

[0136]

[0137] Wherein:

[0138] S i is the comprehensive score of the i-th supplier;

[0139] W j is the weight of the j-th evaluation criterion;

[0140] P ij is the score of the i-th supplier on the j-th criterion;

[0141] A i is the compliance coefficient, with a value range of [0, 1];

[0142] According to the evaluation criteria, the system scores each supplier based on various evaluation dimensions, such as price, delivery time, after-sales service, etc. Assuming that in the evaluation criteria, the weight of price is 70%, the weight of delivery time is 20%, and the weight of after-sales service is 10%. The scoring results are as follows:

[0143] Supplier A: Price score 90, delivery time score 80, after-sales service score 85, S A =(0.7×90 + 0.2×80 + 0.1×85)×1 = 88.5%;

[0144] Supplier B: Price score 85, delivery time score 75, after-sales service score 80, S B =(0.7×85 + 0.2×75 + 0.1×80)×0.8 = 81.6%;

[0145] Supplier C: Due to serious lack of bidding documents, the score is reduced to 0, S C = 0;

[0146] For non-compliant bidding documents, A i will reduce the score value, so that the comprehensive score of the supplier is affected in the final bid evaluation, reducing the winning chance of non-compliant suppliers.

[0147] In order to comprehensively evaluate the overall benefits of the bidding project, a benefit evaluation item can also be added, considering cost, risk, weight, and supplier score comprehensively. Among them, the supplier score S i is incorporated into the comprehensive benefit evaluation. Considering that the comprehensive performance of high-scoring suppliers is better, the comprehensive benefit is calculated as follows:

[0148]

[0149] Wherein:

[0150] E: Comprehensive benefit score (the smaller, the better, indicating higher cost performance)

[0151] C: Total cost (obtained from the cost optimization formula)

[0152] R: Total risk score (obtained from the risk assessment formula)

[0153] W i : Weight coefficient of the tendering method (obtained from the tendering method weight distribution formula)

[0154] The smaller the comprehensive benefit score E, the higher the cost performance. According to the comprehensive benefit score E, the project benefit can be reflected, which can help decision-makers make the optimal choice.

[0155] Finally, to help decision-makers make the optimal choice, the system evaluates according to the comprehensive benefit formula:

[0156] Comprehensive benefit score of Supplier A:

[0157]

[0158] Comprehensive benefit score of Supplier B:

[0159]

[0160] Comprehensive benefit score of Supplier C:

[0161]

[0162] According to the comprehensive benefit evaluation, the comprehensive benefit score of Supplier B is the lowest and the cost performance is the highest. Therefore, it has become the final winning supplier. Although its quotation is slightly higher, Supplier C is not considered a qualified supplier due to the missing bidding documents;

[0163] The system intelligently optimizes the entire tendering and procurement process according to the compliance, risk, cost, tendering method weight, supplier score and comprehensive benefit evaluation of the bidding documents, ensuring the transparency, fairness and efficiency of the decision-making. In actual operation, in the case of non-compliance or missing bidding documents, the system can automatically adjust to reduce the winning chance of non-compliant bids and ensure the optimality of the procurement decision.

[0164] Based on the above technical solution, the bidding document review and release module quotes the information registered for the bidding project in the bidding announcement, and further determines the supplier registration time, the opening time, the bidding deadline, the relevant requirements of the bidding and the bidding document information. After being approved by the relevant personnel of the business competent department, the bidding documents are released to the e-tendering and procurement platform;

[0165] After the tender documents are released to the e-procurement platform, in case of clarifications, explanations, or change matters, the information of clarifications, explanations, and changes shall be re-released to the e-procurement platform by means of re-release. When the bid opening time is postponed, the bid opening time can also be extended through the extension function of the tender announcement.

[0166] After the tender documents are released to the e-procurement platform, it is also necessary to encrypt the registration details of suppliers. That is, before the bid opening, the system only displays the number of bidders, and no one has the right to query the suppliers' quotations. When the bid opening time arrives, the quotations of bidders can be displayed only after the operation by the personnel of the tender office.

[0167] Based on the above technical solution, the supplier registration and bidding module refers to pushing the tender announcement to the UIC supplier portal before the supplier registers. All qualified suppliers on the e-procurement platform can preview the tender announcement. Qualified suppliers who meet the requirements of the tender announcement can choose to register according to their own needs and download the tender documents.

[0168] Based on the above technical solution, the bid opening management module is used to determine the bid evaluation deadline and bid evaluation methods, maintain and fill in bid evaluation indicators according to different tender types, maintain and fill in bid evaluation experts, and introduce the form details in the bid opening from the tender announcement to avoid repeated manual entry.

[0169] The information of the list of tendering units, summary of tender prices, and bid evaluation results in the form will be automatically written back to the corresponding list after the bid evaluation task is completed, facilitating the viewing of the tendering, quoting, and bid evaluation situations of this tender.

[0170] The bid evaluation management module means that after the approval of the bid opening management is completed, the corresponding bid evaluation personnel will receive the corresponding bid evaluation tasks. The bid evaluation personnel select the winning bidder according to the quotations and bid evaluation methods, and can randomly select members from the group expert database for bid evaluation. The bid evaluation can be completed on a computer or a mobile phone. The bid evaluation process and results are recorded in the I8 system and form the bid evaluation results.

[0171] In addition, during the bid evaluation process, with the help of the intelligent matching algorithm built into the e-procurement platform, potential suppliers that meet the requirements can be quickly screened based on the conditions set by the purchaser and the information submitted by the suppliers, and accurate matching and recommendation can be carried out between the purchaser and the suppliers to improve the sourcing efficiency in the early stage of the tender.

[0172] Based on the above technical solution, the winning bid determination management module, after the bid evaluation is completed, quotes the winning bid unit and quotation details of the bid evaluation. After internal approval, the winning bid results are released to the e-procurement platform. At the same time, the winning bid suppliers will also receive a pre-winning bid notice. After receiving the notice, they will confirm the results on the platform. The winning bid unit and winning bid price may be one or more. When there are multiple winning bid units in the same bid, the winning bid notices can be pushed to the corresponding winning bid units at the same time.

[0173] When confirming the results, a secure and efficient online communication tool provided within the e-procurement platform is used to support the communication between the purchaser and the supplier regarding project details and clarification of doubts, ensuring information symmetry between the two parties, enabling the winning supplier unit to communicate with the purchaser in a timely manner during result confirmation, and promoting the achievement of cooperation.

[0174] After the winning bidder confirms on the platform, the pre-winning notice will be introduced into the tender form. After the relevant information undergoes internal approval, the final confirmation will be carried out.

[0175] Based on the above technical solution, the performance bond payment module specifically refers to that the winning bidder who forms a contract relationship with each subsidiary of the enterprise for the first time and the winning bidder who has cooperated before but whose outstanding amount is less than the performance bond amount need to pay the performance bond. After paying the performance bond according to the requirements of the bidding documents, the finance department will verify and generate the winning notice.

[0176] While the winning bidder who has cooperated before and whose outstanding amount meets the performance bond amount will directly generate the winning notice.

[0177] The winning notice issuance module means that after the winning notice is automatically generated on the e-procurement platform, the company will issue the winning notice to the winning bidder through the e-procurement platform. After the winning bidder receives the winning notice, the labor service and material procurement contracts will be automatically generated by referring to the content of the winning notice.

[0178] As Figure 2 shown, a tendering and procurement method for construction enterprises based on the Internet includes the following steps:

[0179] S1. Enable suppliers with the intention to bid to conduct information registration and filing.

[0180] S2. Compile the bidding documents of the purchaser and conduct registration processing.

[0181] S3. After approving the bidding documents, release the documents.

[0182] S4. Enable suppliers to sign up for bidding according to the released bidding documents.

[0183] S5. Conduct management of bid opening, bid evaluation, and bid determination by the approval personnel.

[0184] S6. Pay the performance bond and issue the winning notice.

[0185] Based on the above technical solution, for S1, by implementing the supplier registration and filing system, when suppliers with the intention to bid register, they are required to upload the relevant materials needed for filing, and after the registration is completed, the uploaded relevant registration information and materials will be filed.

[0186] S2. The purchaser needs to prepare bidding documents according to the procurement needs. The bidding documents need to determine the scope of the bidding procurement, the content of the bidding procurement and the bidding procurement method, and register the bidding documents before the bidding document review;

[0187] S3 means that after the tender documents are prepared and registered, they will be reviewed and approved by relevant personnel of the business competent department. After the review and approval, the registration information of the tender documents will be cited to publish as the tender notice. The registration details of the suppliers need to be encrypted in the tender notice.

[0188] S4, in S3, after the tender notice is released, it will be pushed to the suppliers who have registered and filed their information. After receiving the pushed tender release document, the supplier can choose to register and download the tender release document according to their own needs after confirming that they meet the requirements of the tender document;

[0189] S5, bid opening management is used to determine the bid evaluation deadline and bid evaluation method, and to maintain and fill in bid evaluation indicators according to different bidding types. Bid evaluation management refers to the evaluators selecting the bidders based on the quotations and bid evaluation methods. With the help of the built-in intelligent matching algorithm, based on the conditions set by the purchaser and the information submitted by the suppliers, the potential suppliers that meet the requirements are quickly screened out to determine the successful bidder.

[0190] Bidding management refers to citing the winning bidder and quotation details after the bid evaluation is completed. After internal approval, the winning bid result will be published on the electronic procurement platform. The supplier will receive a preliminary winning bid notice and confirm the result.

[0191] S6 means that after receiving the result notification from the central department and confirming the result, the successful supplier unit needs to pay a performance guarantee, and after the financial verification is completed and the payment is made, a notice of successful bid will be generated and issued to the successful supplier unit.

[0192] Finally, it should be noted that the above description is only a preferred example of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An Internet-based tendering and procurement platform for construction enterprises, characterized in that: By deeply integrating the Internet technology of computer networks with the bidding and procurement management of enterprises, we build and develop an electronic bidding and procurement platform, reorganize the bidding and tendering business, optimize and reorganize the work process, and perform a series of business operations such as online bidding, bidding, bid opening and bid evaluation online; The bidding and procurement platform specifically includes a supplier registration and filing module, a bidding document preparation and registration module, a bidding document review and release module, a supplier registration and bidding module, a bid opening management module, a bid evaluation management module, a bid determination management module, a performance bond payment module and a winning bid notice issuance module.

2. The construction enterprise bidding and procurement platform based on the Internet according to claim 1, characterized in that: The supplier registration and filing module implements the supplier registration and filing system, allowing the supplier portal to register and upload the relevant information required for filing, and the relevant filing registration information entered and the uploaded information after registration is completed; The supplier registration and filing module is pushed to the enterprise I8 project management system, and then the filing is reviewed according to the process. After passing the filing review, it will enter the qualified supplier database.

3. The construction enterprise bidding and procurement platform based on the Internet according to claim 1, characterized in that: The bidding document preparation and registration module is used to register the bidding project before the bidding document review, and determine the object, content and method of bidding procurement; The bidding document preparation registration module bidding procurement methods include: invitation bidding, inquiry bidding, negotiation bidding, and open bidding. The details of the bidding project registration form specifically include the material procurement plan and resource demand plan list; When the bidding documents are non-compliant or missing, some bidding documents will be judged as invalid or non-conforming. The system should adjust the bid price according to the actual situation. The improved cost optimization formula can incorporate a "compliance coefficient" A i , which is used to measure the compliance degree of each bidding document. The cost formula for the tender project is as follows: in: C is the total project cost; Q i is the procurement quantity of the i-th material; P i is the unit price of the i-th item of material; A i is the compliance coefficient, with a value range of [0, 1]; If all the bidding documents are compliant, the compliance coefficient A i is 1; If a tender document is non-compliant, the compliance coefficient A i will be reduced, which will in turn affect the cost calculation and reduce the winning chance of non-compliant suppliers; When the bidding documents are not compliant or missing, it will lead to incomplete or untrue data, which increases the risk of bidding. Therefore, the compliance coefficient is introduced to calculate the total risk value. The total risk value calculation formula is as follows: in: R is the total value at risk; C i is the procurement cost of the i-th item of materials; I i is the risk impact coefficient, specifically the statistical analysis of historical data to calculate the occurrence frequency of risks, which is the product of the calculated frequency and the impact degree; H i is the risk probability; A i is the compliance coefficient, with a value range of [0, 1]; If there are missing or non-compliant bidding documents, the total risk value will automatically increase, because non-compliant documents increase project uncertainty and execution risk; When the bidding documents are not compliant, the weight of the bidding method involved needs to be reduced to avoid the non-compliant documents affecting the overall bidding strategy. The weight allocation formula for the bidding method is as follows: in W i is the weight of the i-th tendering method; C i is the cost of the i-th tendering method; A i is the compliance coefficient, with a value range of [0, 1]; If the bidding documents of a certain supplier are non-compliant, the tendering method weight W of this supplier i will be correspondingly reduced. In this way, even if the supplier's quotation is relatively low, its impact on the final winning bid result will be weakened; Through statistical analysis of non-compliant bidding documents, the compliance of suppliers can be evaluated and the comprehensive score of suppliers can be calculated. The specific calculation formula is as follows: in: S i is the comprehensive score for the i-th supplier; W j is the weight of the j-th evaluation criterion; s ij is the score of the i-th supplier on the j-th criterion; A i is the compliance coefficient, with a value in the range of [0, 1]; To comprehensively evaluate the overall benefits of a tender project, benefit evaluation items can also be added, taking into account costs, risks, weights, and supplier scores, where the supplier score is S i Incorporate the comprehensive benefit evaluation. Considering that the overall performance of suppliers with high scores is better, the comprehensive benefit is calculated as follows: in: E is the comprehensive benefit score; C is the total cost; S i is the comprehensive score of the i-th supplier; R is the total value at risk; W i is the weight of the i-th tendering method; The smaller the comprehensive benefit score E, the higher the cost-effectiveness. Reflecting the project benefits based on the comprehensive benefit score E can help decision makers make the best choice.

4. The construction enterprise bidding and procurement platform based on the Internet according to claim 1, characterized in that: The bidding document review and release module will quote the bidding project registration information in the bidding announcement, and further determine the supplier registration time, bid opening time, bid deadline, relevant bidding requirements and bidding document information; The bidding document review and release module releases the bidding documents to the electronic bidding and procurement platform after approval by relevant personnel of the business department; After the bidding documents are published on the electronic bidding and procurement platform, if there are any clarifications or changes, they can be republished on the electronic bidding and procurement platform. If the bid opening time is delayed, the bid opening time can be extended through the extension function of the bidding notice. After the tender documents are released to the e-procurement platform, it is also necessary to encrypt the registration details of suppliers. That is, before the bid opening, the system only shows the number of bidders, and no one has the permission to query the suppliers' quotations. When the bid opening time arrives, the bidder's quotation information can be displayed only after the operation by the personnel of the tender office.

5. The construction enterprise bidding and procurement platform based on the Internet according to claim 1, characterized in that: The supplier registration and bidding module refers to pushing the tender announcement to the UIC supplier portal before the supplier registers. All qualified suppliers on the e-procurement platform can preview the tender announcement. Qualified suppliers meeting the requirements of the tender announcement can choose to register according to their own needs and download the tender documents.

6. The Internet-based construction enterprise bidding and procurement platform according to claim 1, characterized in that: The bid opening management module is used to determine the evaluation deadline and evaluation methods, maintain and fill in the evaluation indicators according to different tender types, maintain and fill in the evaluation experts. The form details in the bid opening are introduced from the tender announcement to avoid repeated manual entry. The information of the bidder list, bid price summary, and evaluation results in the form is automatically written back to the corresponding list after the evaluation task is completed, facilitating the viewing of the bidding, quotation, and evaluation situations of this tender. The evaluation management module means that after the bid opening management completes the approval, the corresponding evaluators will receive the corresponding evaluation tasks. The evaluators select the winning bidder according to the quotation and evaluation method, and can randomly select members from the group expert database for evaluation. The evaluation can be completed on a computer or a mobile phone. The evaluation process and results are recorded in the I8 system and form the evaluation results. In addition, during the evaluation process, with the help of the intelligent matching algorithm built into the e-procurement platform, it is possible to quickly screen out potential suppliers meeting the requirements based on the conditions set by the purchaser and the information submitted by the suppliers, and accurately match and recommend between the purchaser and the suppliers to improve the sourcing efficiency in the early stage of the tender.

7. An Internet-based construction enterprise bidding and procurement platform according to claim 6, characterized in that: The winning bid determination management module, after the evaluation is completed, quotes the winning bidder and quotation details of the evaluation. After internal approval, the winning bid results are released to the e-procurement platform. At the same time, the winning supplier unit will also receive a pre-winning notice. After receiving the notice, the result is confirmed on the platform. The winning bid unit and winning bid price may be one or more. When there are multiple winning bid units for the same bid, the winning bid notice can be pushed to the corresponding winning bid units at the same time. During the result confirmation, through the secure and efficient online communication tool provided within the e-procurement platform, it supports the purchaser and the supplier to communicate project details and clarify doubts, ensuring information symmetry between the two parties, enabling the winning supplier unit to communicate with the purchaser in a timely manner during the result confirmation and promoting the achievement of cooperation. After the winning bid unit confirms on the platform, the pre-winning notice is introduced into the winning bid document form, and after the relevant information passes the internal approval, the final confirmation is carried out.

8. The construction enterprise bidding and procurement platform based on the Internet according to claim 1, wherein: The performance bond payment module specifically refers to the winning bidders who form a contract relationship with each branch company of the enterprise for the first time and the winning bidders who have cooperated before but whose outstanding debts are less than the performance bond amount need to pay the performance bond. After paying the performance bond according to the requirements of the tender documents, the finance department generates the winning bid notice after verification. While the winning bidders who have cooperated before but whose outstanding debt amount meets the performance bond amount directly generate the winning bid notice. The winning bid notice issuance module refers to that after the winning bid notice is automatically generated on the e-procurement platform, the company will issue the winning bid notice to the winning bidder through the e-procurement platform. After receiving the winning bid notice, the winning bidder will automatically generate labor and material procurement contracts by referring to the content of the winning bid notice.

9. A tendering and procurement method for construction enterprises based on the Internet, according to the tendering and procurement method of a tendering and procurement platform for construction enterprises based on the Internet described in any one of claims 1-8, characterized in that: It includes the following steps: S1. Enable suppliers with bidding intentions to register and file information. S2. Compile the bidding documents of the purchaser and conduct registration processing. S3. After the bidding documents are approved, release the documents. S4. Enable suppliers to sign up for bidding based on the released bidding documents. S5. Conduct bid opening, bid evaluation, and bid determination management through the approval personnel. S6. Pay the performance bond and issue the winning bid notice.

10. A method for tendering and procurement of construction enterprises based on the Internet according to claim 9, characterized in that: For S1, by implementing the supplier registration and filing system, suppliers with bidding intentions are required to upload relevant materials required for filing when registering, and after the registration is completed, the uploaded relevant registration information and materials are filed. For S2, the purchaser needs to compile the bidding documents according to the procurement requirements. In the bidding documents, it is necessary to determine the scope of the objects of the bidding procurement, the content of the bidding procurement, and the method of the bidding procurement, and conduct registration processing of the bidding documents before the review of the bidding documents. For S3, it means that after the bidding documents are compiled and registered, they are reviewed by relevant personnel of the business competent department, and after the review is qualified, the registration information of the bidding documents is cited as the bidding announcement for release. In the bidding announcement, it is necessary to encrypt the details of the suppliers' sign-up. For S4, in S3, after the bidding announcement is released, the bidding announcement will be correspondingly pushed to the suppliers who have registered and filed information. After receiving the pushed bidding release document, the suppliers can, according to their own needs, choose to sign up and download the bidding release document after determining that they meet the requirements of the bidding documents. For S5, the bid opening management is used to determine the bid evaluation deadline and bid evaluation method, and maintain and fill in the bid evaluation indicators according to different types of bidding. The bid evaluation management refers to that the bid evaluation personnel select the winning bidder according to the quotation and bid evaluation method, and with the help of the built-in intelligent matching algorithm, quickly screen out potential suppliers that meet the requirements based on the conditions set by the purchaser and the materials submitted by the suppliers to determine the winning bidder. The bid determination management is to, after the bid evaluation is completed, cite the winning bid unit and quotation details of the bid evaluation, and after internal approval, release the winning bid result to the e-procurement platform. The supplier unit will receive the pre-winning bid notice and conduct result confirmation. For S6, it means that the winning supplier unit, after receiving the notice of the central result and conducting result confirmation, needs to pay the performance bond, and after the financial verification of the payment is completed, generate the winning bid notice and issue the winning bid notice to the winning supplier unit.

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