A project cost risk control management system

Abstract

The present invention discloses a project cost risk control management system, which relates to the technical field of risk management and control, and includes a potential risk analysis module, a risk assessment unit, a risk probability assessment module, a risk impact assessment module, a risk level assessment module, a risk response module, an early warning terminal and a database. In the process of risk probability assessment, by integrating multidimensional data and historical project data, combining industry risk index and supplier stability score, the scientificity and objectivity of the assessment are enhanced, and a quantitative basis is provided for risk management decision-making. In the risk impact assessment, through risk simulation and multi-index analysis, the impact of potential risks on project cost, construction period and technical performance is comprehensively assessed, and comprehensive data support is provided for formulating risk response strategies. In the process of risk level assessment, through comprehensive analysis of risk probability and impact, it is conducive to scientifically dividing risk levels and prioritizing them.

Description

Technical Field

[0001] The present invention relates to the technical field of risk management and control, and in particular to a project cost risk control and management system. Background Art

[0002] Risk management is a crucial part of modern engineering projects. Due to the large scale of the project, the wide range of professional fields involved, and unforeseen external factors, the management of engineering cost risks is particularly complex and difficult. Various potential risks may lead to cost overruns, construction delays, and reduced project quality. Therefore, systematic and scientific risk control management is particularly urgent.

[0003] Prior art, such as the invention patent application with announcement number CN113837664A, discloses a project risk analysis system, including a risk identification module, a risk quantification module, a risk calculation module and a risk monitoring module; the risk monitoring module is provided with an alarm unit, which issues an alarm instruction according to the risk level of the risk analysis result, and the risk calculation module also includes a storage unit. The present invention integrates risk management, continuous risk assessment and decision-making in the project or operation life cycle. Risks are continuously assessed, monitored and actively managed until they are resolved. By accurately identifying the project type and selecting the corresponding risk standard rules for analysis, the accuracy of project engineering risk analysis can be improved.

[0004] There are at least the following technical problems with the above scheme: 1. The above scheme lacks specific methods and steps for systematic analysis of potential risks, which will result in the inability to fully capture various potential risks that may arise in project implementation during risk identification, and thus fail to effectively quantify and evaluate these risks. It also lacks an objective assessment mechanism for risk probability and risk impact, which will lead to a lack of data support in project risk analysis, thereby affecting the accuracy of risk levels, making it difficult for decision makers to make scientific and reasonable judgments based on actual risk situations when formulating response measures.

[0005] 2. The above scheme lacks methods and standards for in-depth assessment of the impact of each potential risk, which will lead to a failure to fully understand the specific impact of different risks on project objectives during the risk assessment process, thereby affecting the formulation and implementation of risk response strategies. It also lacks a detailed description and subdivision of different risk categories, which will lead to the failure to form clear risk classification standards during risk identification and analysis, thereby affecting the project team's attention to risks and handling priorities, leading to confusion and misjudgment when risks occur.

[0006] 3. The above scheme lacks a specific model to quantify the consequences of risk impact, which will make it difficult to accurately assess the specific impact on the project when the risk occurs, thereby affecting the project's budget, schedule and resource allocation. The lack of a mechanism to evaluate the effectiveness of risk response measures will result in no one to evaluate the effectiveness of risk response measures after implementation, making it difficult to optimize and iterate risk management measures, resulting in waste of resources and accumulation of risks. Summary of the invention

[0007] The purpose of the present invention is to provide a project cost risk control management system that solves the problems existing in the background technology.

[0008] In order to solve the above technical problems, the present invention adopts the following technical solution: The present invention provides a project cost risk control management system, including: a potential risk analysis module, a risk assessment unit, a risk response module and an early warning terminal.

[0009] The potential risk analysis module is used to evaluate the potential risks in the implementation of a specified project.

[0010] The risk assessment unit includes a risk probability assessment module, a risk impact assessment module and a risk level assessment module.

[0011] The risk probability assessment module is used to obtain the probability impact parameters of each potential risk occurring during the implementation of the specified project, and then calculate the risk probability coefficient of each potential risk corresponding to the specified project.

[0012] The risk impact assessment module is used to obtain information on the impact of each potential risk after it occurs during the implementation of the specified project, and then calculate the risk impact index caused by each potential risk after it occurs.

[0013] The risk level assessment module is used to assess the risk level corresponding to each potential risk according to the risk probability coefficient of each potential risk corresponding to the designated project and the risk impact index caused by each potential risk after occurrence.

[0014] The risk response module is used to formulate risk response measures corresponding to each potential risk according to the risk level of each potential risk corresponding to the specified project.

[0015] The display terminal is used to display prompts in the form of a risk matrix when the risk level corresponding to each potential risk is obtained.

[0016] The beneficial effects of the present invention are: 1. A construction cost risk control management system provided by the present invention is conducive to improving the accuracy of risk identification through historical data analysis and risk assessment models in the process of potential risk identification. When evaluating the potential risks of a designated project during implementation, the system first obtains historical projects of the same type as the designated project from the construction cost risk management and control database, and determines the first part of potential risks of the designated project by counting the number of occurrences of each historical risk type. Through in-depth analysis of historical data, it effectively captures common and significant potential risks, thereby improving the coverage and accuracy of risk identification.

[0017] 2. In the process of risk probability assessment, the embodiment of the present invention enhances the scientificity and objectivity of the assessment by integrating multidimensional data and historical project data, combining industry risk index and supplier stability score, and provides a quantitative basis for risk management decisions. In the risk impact assessment, through risk simulation and multi-indicator analysis, the impact of potential risks on project cost, construction period and technical performance is comprehensively assessed, providing comprehensive data support for the formulation of risk response strategies.

[0018] 3. In the process of risk level assessment, the embodiment of the present invention facilitates scientific classification of risk levels and prioritization through comprehensive analysis of risk probability and impact. According to the probability coefficient and impact index of each potential risk, combined with the risk level standard in the engineering cost risk management and control database, the comprehensive risk value is calculated to determine the risk level of each potential risk. Through a systematic risk assessment method, a scientific classification of risk levels is achieved, which helps the project management team to accurately identify high risks, medium risks and low risks, thereby optimizing resource allocation, giving priority to high-risk events, and improving the pertinence and effectiveness of risk management.

[0019] 4. In the process of formulating risk response strategies, the embodiments of the present invention enable project staff to practice responding to medium and low-risk events multiple times under safe conditions through VR simulation training according to the response requirements of different risk levels, thereby improving their response capabilities and speed. Through multi-level risk response strategies, it is ensured that the project has corresponding response plans in different risk situations, thereby enhancing the project's risk resistance. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 It is a schematic diagram of the system structure connection of the present invention. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] See also Figure 1 As shown, the present invention provides a project cost risk control management system, which includes: a potential risk analysis module, a risk assessment unit, a risk probability assessment module, a risk impact assessment module, a risk level assessment module, a risk response module, an early warning terminal and a database.

[0024] The potential risk analysis module is connected to the risk assessment unit, which includes a risk probability assessment module, a risk impact assessment module and a risk level assessment module. The risk probability assessment module is connected to the risk impact assessment module, and the risk impact assessment module is connected to the risk level assessment module. The risk assessment unit is respectively connected to the risk response module and the database, and the risk response module is connected to the early warning terminal.

[0025] The potential risk analysis module is used to evaluate the potential risks in the implementation of a specified project.

[0026] In a specific embodiment, the evaluation specifies the potential risks of the project during implementation, and the specific evaluation process is as follows: historical projects of the same type as the specified project are obtained from the engineering cost risk management and control database, and the historical risk types of increased costs encountered by the historical projects during implementation are obtained, and the number of occurrences of each historical risk type is counted. When the number of occurrences of a historical risk type is greater than or equal to the set safety number, the historical risk type is used as one of the potential risks of the specified project during implementation, thereby obtaining the first part of the potential risks of the specified project during implementation.

[0027] The project information of the designated project is input into the engineering cost risk assessment model, and then the second part of the potential risks of the designated project during the implementation process is obtained from the engineering cost risk assessment model, and the first part of the potential risks and the second part of the potential risks are counted to obtain the potential risks of the designated project during the implementation process.

[0028] It should be noted that project information includes but is not limited to project type, project scale, project cost budget and construction site. The potential risks in the first part and the potential risks in the second part are different. The engineering cost risk assessment model has been described in detail in the invention patent with publication number CN116934079A. The specific function of the engineering cost risk assessment model is to manage and control the potential risks corresponding to the designated project by identifying and evaluating potential risks, simulating the degree of impact and formulating response measures. I will not go into details here.

[0029] In the process of risk probability assessment, the embodiments of the present invention enhance the scientificity and objectivity of the assessment by integrating multidimensional data and historical project data, combining industry risk index and supplier stability score, and providing a quantitative basis for risk management decisions. In the risk impact assessment, through risk simulation and multi-index analysis, the impact of potential risks on project cost, construction period and technical performance is comprehensively assessed, providing comprehensive data support for the formulation of risk response strategies.

[0030] In a specific embodiment, the probability impact parameters include the industry risk index, supplier stability score and historical risk occurrence probability, and the impact degree information includes cost overrun amount, construction delay duration and technical performance degradation value.

[0031] It should be noted that the cost overrun refers to the amount by which the actual expenses incurred during the implementation of a designated project exceed the budgeted or expected expenses, which is caused by a variety of factors, such as rising material prices, engineering changes, and premature consumption of resources. The technical performance degradation value refers to the degree to which the technical performance indicators of a designated project have declined due to the occurrence of a potential risk, such as efficiency, quality, and reliability. The larger the cost overrun, construction delay, and technical performance degradation value, the greater the impact of each potential risk on the designated project, and the higher the risk level.

[0032] It should also be noted that a higher industry risk index means that the industry is facing uncertainties such as economic fluctuations, policy changes or supply chain problems. For example, in the construction industry, if the industry risk index is high, it means that material prices fluctuate or labor shortages occur. If the supplier stability score is low, it means that the supplier has unstable factors such as delivery delays and quality problems. For example, a low stability score will lead to material supply interruptions, thereby increasing the risk of project delays. The higher the probability of historical risks, the higher the probability that a specified project will face the same risk during implementation. For example, if historical data shows that the probability of budget overrun risk for a certain type of historical project is 30%, then in new projects of the same type of historical projects, the probability of budget overrun risk will also be close to 30%.

[0033] The risk probability assessment module is used to obtain the probability impact parameters of each potential risk occurring during the implementation of a specified project, and then calculate the risk probability coefficient of each potential risk corresponding to the specified project.

[0034] In a specific embodiment, the probability impact parameters of each potential risk occurring during the implementation of the specified project are obtained, and the specific process is as follows: according to the project type of the specified project, the reference industry risk index corresponding to each project of the same type as the specified project is obtained from the engineering cost risk assessment model, and the reference industry risk index corresponding to each project is calculated by the mean, and the result is the industry risk index of the specified project. The stability dimension corresponding to the specified supplier is obtained through market research, and the stability dimension includes financial health status, on-time delivery rate, product quality, customer evaluation and historical cooperation record. The weight factor corresponding to the stability dimension is set, and then the supplier stability score corresponding to the specified project is calculated.

[0035] The risk type of each potential risk corresponding to the designated project is input into the engineering cost risk assessment model to obtain the historical projects where potential risks have occurred, and the number of times each potential risk has occurred in each historical project and the total number of times the potential risk has occurred in each historical project are counted. The number of times each potential risk has occurred in each historical project is divided by the total number of times the potential risk has occurred in each historical project to obtain the probability of occurrence of each potential risk in each historical project. According to the type of each potential risk in each historical project, the probability of occurrence corresponding to each potential risk of the same type is accumulated to obtain the probability of occurrence of each potential risk, and then the probability of occurrence of each potential risk is used as the historical risk probability of occurrence of each potential risk during the implementation of the designated project.

[0036] It should be noted that the stability dimension corresponding to the designated supplier is input into the engineering cost risk assessment model to obtain the score corresponding to the stability dimension. For example, the weight factors corresponding to the stability dimension are 0.3, 0.25, 0.2, 0.15 and 0.1, and the scores corresponding to the stability dimension are 85, 90, 80, 75 and 95, respectively. The formula is: , and then get the supplier stability score corresponding to the specified project The supplier stability score in the present invention refers to the stability score corresponding to the supplier that ranks first in supplying materials and goods in a specified project.

[0037] In a specific embodiment, the risk probability coefficient of each potential risk corresponding to the specified project is calculated, and the specific calculation process is as follows: , get the risk probability coefficient of each potential risk corresponding to the specified project , is the number corresponding to each potential risk, , is the total number of potential risks, is a positive integer, where and They are respectively represented by the industry risk index and supplier stability score corresponding to the specified project. Indicates the number of times a specific project occurs during implementation. The historical risk probability of a potential risk, , They are respectively expressed as the probability of occurrence of historical risks compared with the standard and the stability score of the supplier compared with the standard. , They are the weight factors corresponding to the set historical risk probability and the weight factors corresponding to the supplier stability score.

[0038] It should be noted that , The values ​​of are all greater than 0 and less than 1. The standard control historical risk occurrence probability and standard control supplier stability score corresponding to the specified project during the implementation process are obtained from the engineering cost risk management and control database.

[0039] It should also be noted that the project type, industry characteristics and supplier status are first analyzed through the engineering risk assessment model, and their importance in the overall risk assessment is determined in combination with historical data and expert evaluation. For example, for a certain infrastructure construction project, based on historical industry data, it is found that the volatility of the industry risk corresponding to the infrastructure construction project is large. Therefore, the weight factor of the historical risk probability is set to 0.3 to reflect the importance of the historical risk probability in risk assessment. The stability of the supplier directly affects the smooth implementation of the project. If there is only one supplier that ranks first in the quantity of materials and goods required for the project, the weight factor of the supplier stability score is set to 0.7.

[0040] The risk impact assessment module is used to obtain information on the impact of each potential risk after it occurs during the implementation of a specified project, and then calculate the risk impact index caused by each potential risk after it occurs.

[0041] In a specific embodiment, the information on the degree of impact of each potential risk occurring during the implementation of the specified project is obtained by inputting each potential risk occurring during the implementation of the specified project into an engineering cost risk assessment model, and simulating the estimated degree of impact of each potential risk occurring during the implementation of the specified project in the engineering cost risk assessment model, thereby obtaining the cost overrun amount, construction delay duration and technical performance degradation value corresponding to each potential risk occurring during the implementation of the specified project.

[0042] In a specific embodiment, the risk impact index caused by each potential risk of the specified project is calculated, and the specific process is as follows: , get the risk impact index caused by each potential risk of the specified project ,in , , Respectively expressed as The corresponding cost overruns, construction delays, and technical performance degradation values ​​after the occurrence of potential risks. , , They are respectively expressed as the standard control cost overrun, the standard control construction delay duration, and the standard control technical performance degradation value. , , They are the weight factor corresponding to the set cost overrun amount, the weight factor corresponding to the construction delay duration, and the weight factor corresponding to the technical performance degradation value.

[0043] It should be noted that , , The values ​​of are greater than 0 and less than 1. , , The setting process and , The setting process is the same and will not be elaborated here. The standard control cost overrun, standard control construction delay duration and standard control technical performance degradation value corresponding to the specified project during the implementation process are obtained from the engineering cost risk air traffic control database.

[0044] In the process of risk level assessment, the embodiment of the present invention facilitates scientific classification of risk levels and prioritization through comprehensive analysis of risk probability and impact. According to the probability coefficient and impact index of each potential risk, combined with the risk level standard in the engineering cost risk management and control database, the comprehensive risk value is calculated to determine the risk level of each potential risk. Through a systematic risk assessment method, a scientific classification of risk levels is achieved, which helps the project management team to accurately identify high risks, medium risks and low risks, thereby optimizing resource allocation, giving priority to high-risk events, and improving the pertinence and effectiveness of risk management.

[0045] The risk level assessment module is used to assess the risk level corresponding to each potential risk based on the risk probability coefficient of each potential risk corresponding to the specified project and the risk impact index caused by each potential risk after it occurs.

[0046] In a specific embodiment, the risk level corresponding to each potential risk is evaluated, and the specific evaluation process is as follows: according to the risk probability coefficient of each potential risk corresponding to the specified project and the risk impact index caused by each potential risk after the occurrence, the risk probability and risk impact corresponding to each potential risk are obtained from the engineering cost risk management and control database, the risk probability includes the probability of low risk occurrence, the probability of medium risk occurrence and the probability of high risk occurrence, the risk impact includes the degree of low risk impact, the degree of medium risk impact and the degree of high risk impact, and the comprehensive risk value corresponding to each potential risk is analyzed. The comprehensive risk value includes -1, 0 and 1. When the comprehensive risk value of a potential risk is -1, it indicates that the risk level corresponding to the potential risk is a low risk level. When the comprehensive risk value of a potential risk is 1, it indicates that the risk level corresponding to the potential risk is a high risk level. When the comprehensive risk value of a potential risk is 0, it indicates that the risk level corresponding to the potential risk is a medium risk level, thereby obtaining the risk level corresponding to each potential risk.

[0047] In a specific embodiment, the comprehensive risk value corresponding to each potential risk is analyzed, and the specific analysis process is as follows: the low risk occurrence probability threshold, medium risk occurrence probability threshold, high risk occurrence probability threshold, low risk impact degree threshold, medium risk impact degree threshold and high risk impact degree threshold corresponding to each potential risk when it occurs are obtained from the engineering cost risk management and control database, and the low risk occurrence probability threshold, medium risk occurrence probability threshold and high risk occurrence probability threshold are recorded as , and , the low risk impact threshold, medium risk impact threshold and high risk impact threshold are respectively , and , evaluate the expression by risk level: , get the The comprehensive risk value corresponding to the potential risk , or represents an or relationship, and and represents an and relationship.

[0048] In the process of formulating risk response strategies, the embodiments of the present invention enable project staff to practice responding to medium and low-risk events multiple times under safe conditions through VR simulation training according to the response requirements of different risk levels, thereby improving response capabilities and speed. Through multi-level risk response strategies, it is ensured that the project has corresponding response plans in different risk scenarios, thereby enhancing the project's risk resistance.

[0049] The risk response module is used to formulate risk response measures corresponding to each potential risk based on the risk level of each potential risk corresponding to the specified project.

[0050] In a specific embodiment, the risk response measures corresponding to each potential risk are formulated, and the specific process is as follows: according to the risk level corresponding to each potential risk, each risk response measure is obtained from the engineering cost risk assessment model, and each risk response measure includes risk transfer and risk reduction. Each potential risk of a high risk level is responded to through risk transfer measures, and each potential risk of a medium risk level and a low risk level is responded to through risk reduction measures. The staff within the designated project are simulated and trained for each potential risk of a medium risk level and a low risk level through VR simulation training to achieve the purpose of risk reduction.

[0051] It should be noted that risk transfer refers to the transfer of potential risks with a high risk level to a third party through contracts, insurance or outsourcing. Risk transfer does not eliminate the risk, but makes the other party bear the consequences of the risk. Risk mitigation refers to taking measures to reduce the impact of budget increases caused by the occurrence of potential risks with medium and low risk levels.

[0052] The display terminal is used to display prompts in the form of a risk matrix when the risk level corresponding to each potential risk is obtained.

[0053] It should be noted that the risk matrix is ​​a visual aid that visualizes the probability of occurrence of potential risks of different levels and the degree of impact of each potential risk at each position in a two-dimensional matrix. The risk matrix is ​​an existing technology and will not be described in detail here.

[0054] A database is used to store historical projects of the same type as a specified project and various historical risk types of increased costs encountered by each historical project during implementation, and also stores the risk probability and risk impact corresponding to each potential risk, the risk probability includes a low risk probability of occurrence, a medium risk probability of occurrence and a high risk probability of occurrence, and the risk impact includes a low risk impact degree, a medium risk impact degree and a high risk impact degree, and also stores the low risk occurrence probability threshold, medium risk occurrence probability threshold, high risk occurrence probability threshold, low risk impact degree threshold, medium risk impact degree threshold and high risk impact degree threshold corresponding to each potential risk when it occurs, and also stores the standard control historical risk occurrence probability and standard control supplier stability score corresponding to the specified project during implementation, and also stores the standard control cost overrun amount, standard control construction delay duration and standard control technical performance degradation value corresponding to the specified project during implementation.

[0055] It should be noted that the engineering cost risk management and control database mentioned in the present invention is the same as the database.

[0056] An engineering cost risk control and management system provided by the present invention is conducive to improving the accuracy of risk identification through historical data analysis and risk assessment models in the process of potential risk identification. When evaluating the potential risks of a designated project during implementation, the system first obtains historical projects of the same type as the designated project from the engineering cost risk management and control database, and determines the first part of potential risks of the designated project by counting the number of occurrences of each historical risk type. Through in-depth analysis of historical data, common and significant potential risks are effectively captured, thereby improving the coverage and accuracy of risk identification.

[0057] The above contents are merely examples and explanations of the concept of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the concept of the invention or exceed the scope defined in this specification, they shall all fall within the protection scope of the present invention.

Claims

1. A project cost risk control management system, characterized in that: include: Potential risk analysis module, risk assessment unit, risk response module and early warning terminal; Potential risk analysis module, used to evaluate the potential risks of a specified project during its implementation; The risk assessment unit includes a risk probability assessment module, a risk impact assessment module, and a risk level assessment module; The risk probability assessment module is used to obtain the probability impact parameters of each potential risk occurring during the implementation of the specified project, and then calculate the risk probability coefficient of each potential risk corresponding to the specified project; The risk probability coefficient Where k and W represent the industry risk index and supplier stability score corresponding to the specified project, respectively; Pri represents the historical risk probability of the i-th potential risk occurring during the implementation of the specified project; Pr and W represent the standard control historical risk probability and standard control supplier stability score, respectively; ι1 and ι2 represent the weight factors corresponding to the set historical risk probability and supplier stability score, respectively; The risk impact assessment module is used to obtain information on the impact of each potential risk after it occurs during the implementation of the specified project, and then calculate the risk impact index caused by each potential risk after it occurs; The risk impact index Among them, M i , T i , J i They are respectively represented by the cost overrun amount, construction delay duration, and technical performance degradation value corresponding to the occurrence of the i-th potential risk, M′, T′, and J′ are respectively represented by the standard control cost overrun amount, standard control construction delay duration, and standard control technical performance degradation value, μ1, μ2, and μ3 are respectively the weight factors corresponding to the set cost overrun amount, construction delay duration, and technical performance degradation value; The risk level assessment module is used to assess the risk level corresponding to each potential risk according to the risk probability coefficient of each potential risk corresponding to the specified project and the risk impact index caused by each potential risk after the occurrence of the potential risk; The risk response module is used to formulate risk response measures for each potential risk according to the risk level of each potential risk corresponding to the specified project; The display terminal is used to display prompts in the form of a risk matrix when the risk level corresponding to each potential risk is obtained.

2. The engineering cost risk control management system according to claim 1, characterized in that: The assessment specifies the potential risks of the project during implementation. The specific assessment process is as follows: Obtain each historical project of the same type as the specified project from the engineering cost risk management and control database, obtain each historical risk type of increased cost encountered by each historical project during implementation, count the number of occurrences of each historical risk type, and when the number of occurrences of a certain historical risk type is greater than or equal to the set safety number, use the historical risk type as one of the potential risks during the implementation of the specified project, thereby obtaining each first part of the potential risks during the implementation of the specified project; The project information of the designated project is input into the engineering cost risk assessment model, and then the second part of the potential risks of the designated project during the implementation process is obtained from the engineering cost risk assessment model, and the first part of the potential risks and the second part of the potential risks are counted to obtain the potential risks of the designated project during the implementation process.

3. The engineering cost risk control management system according to claim 2 is characterized in that: The probability impact parameters include industry risk index, supplier stability score and historical risk occurrence probability, and the impact degree information includes cost overrun amount, construction delay duration and technical performance degradation value.

4. The engineering cost risk control management system according to claim 3 is characterized in that: The specific process of obtaining the probability impact parameters of each potential risk occurring during the implementation of the specified project is as follows: According to the project type of the specified project, the reference industry risk index corresponding to each project of the same type as the specified project is obtained from the engineering cost risk assessment model. The reference industry risk index corresponding to each project is calculated by averaging. The result is the industry risk index of the specified project. The stability dimension corresponding to the specified supplier is obtained through market research. The stability dimension includes financial health status, on-time delivery rate, product quality, customer evaluation and historical cooperation record. The weight factor corresponding to the stability dimension is set, and then the supplier stability score corresponding to the specified project is calculated; The risk type of each potential risk corresponding to the designated project is input into the engineering cost risk assessment model to obtain the historical projects where potential risks have occurred, and the number of times each potential risk has occurred in each historical project and the total number of times the potential risk has occurred in each historical project are counted. The number of times each potential risk has occurred in each historical project is divided by the total number of times the potential risk has occurred in each historical project to obtain the probability of occurrence of each potential risk in each historical project. According to the type of each potential risk in each historical project, the probability of occurrence corresponding to each potential risk of the same type is accumulated to obtain the probability of occurrence of each potential risk, and then the probability of occurrence of each potential risk is used as the historical risk probability of occurrence of each potential risk during the implementation of the designated project.

5. The engineering cost risk control management system according to claim 4, characterized in that: The specific process of obtaining the impact information of each potential risk after it occurs during the implementation of the specified project is as follows: The potential risks of the designated project during the implementation process are input into the engineering cost risk assessment model, and the estimated impact of each potential risk on the designated project after its occurrence is simulated in the engineering cost risk assessment model, so as to obtain the cost overrun, construction delay duration and technical performance degradation value of the designated project after the occurrence of each potential risk during the implementation process.

6. The engineering cost risk control management system according to claim 5, characterized in that: The specific evaluation process of evaluating the risk level corresponding to each potential risk is as follows: According to the risk probability coefficient of each potential risk corresponding to the specified project and the risk impact index caused by each potential risk after its occurrence, the risk probability and risk impact corresponding to each potential risk are obtained from the engineering cost risk management and control database. The risk probability includes the probability of low risk occurrence, the probability of medium risk occurrence and the probability of high risk occurrence. The risk impact includes the degree of low risk impact, the degree of medium risk impact and the degree of high risk impact. The comprehensive risk value corresponding to each potential risk is analyzed. The comprehensive risk value includes -1, 0 and 1. When the comprehensive risk value of a potential risk is -1, it indicates that the risk level corresponding to the potential risk is a low risk level. When the comprehensive risk value of a potential risk is 1, it indicates that the risk level corresponding to the potential risk is a high risk level. When the comprehensive risk value of a potential risk is 0, it indicates that the risk level corresponding to the potential risk is a medium risk level, thereby obtaining the risk level corresponding to each potential risk.

7. The engineering cost risk control management system according to claim 6, characterized in that: The comprehensive risk value corresponding to each potential risk is analyzed, and the specific analysis process is as follows: From the engineering cost risk management and control database, obtain the low risk occurrence probability threshold, medium risk occurrence probability threshold, high risk occurrence probability threshold, low risk impact degree threshold, medium risk impact degree threshold and high risk impact degree threshold corresponding to each potential risk. The low risk occurrence probability threshold, medium risk occurrence probability threshold and high risk occurrence probability threshold are denoted as a, b and c respectively, and the low risk impact degree threshold, medium risk impact degree threshold and high risk impact degree threshold are denoted as d, e and f respectively. The risk level evaluation expression is as follows: The comprehensive risk value αi corresponding to the i-th potential risk is obtained, where or represents an OR relationship and and represents an AND relationship.

8. The engineering cost risk control management system according to claim 7, characterized in that: The specific process of formulating risk response measures corresponding to each potential risk is as follows: According to the risk level corresponding to each potential risk, each risk response measure is obtained from the engineering cost risk assessment model. Each risk response measure includes risk transfer and risk reduction. Each potential risk of high risk level is dealt with through risk transfer measures, and each potential risk of medium risk level and low risk level is dealt with through risk reduction measures. The staff within the designated project will be simulated and trained on each potential risk of medium risk level and low risk level through VR simulation training to achieve the purpose of risk reduction.

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