Computer-aided design metadata extraction system for automated uploads to document management systems

Abstract

A computer-aided design metadata extraction system for automated uploads to a document management system, wherein the system includes the following: a central processing unit configured to control all metadata extraction operations and coordinate the interaction between multiple hardware subsystems; a metadata interpretation controller connected to the central processing unit, which includes a dedicated analysis circuit configured to read file headers, attribute tables, revision identifiers and embedded descriptors from a CAD file; a structured data formatter coupled with the metadata interpretation controller, wherein the structured data formatter is configured to convert the extracted metadata into a normalized schema compatible with predefined fields of a document management system; a volatile memory module and a non-volatile memory module, each coupled to the central processing unit, wherein the volatile memory module is configured to store runtime processing states and the non-volatile memory module is configured to retain persistent logs of extracted metadata and completed upload transactions; a secure communication module comprising an encryption controller and an authentication controller, wherein the secure communication module is configured to transmit the structured metadata and the associated CAD file to the document management system via an authenticated and encrypted connection; and an operator interface comprising a graphical display unit and physical input controls, wherein the operator interface is configured to allow an operator to preview the extracted metadata, configure schema mapping rules, and initiate or approve metadata upload operations.

Description

Technical field

[0001] The present invention relates to systems and methods for the automated extraction of metadata from CAD files and in particular a hardware-based system that identifies, processes and uploads metadata to a structured document management system in order to securely store, classify and retrieve design-related documentation. background

[0002] In industrial design workflows, CAD files contain both geometric models and associated metadata such as part numbers, material specifications, revision codes, author identifiers, and dimensional tolerances. Extracting and managing this metadata for integration into a document management system traditionally requires manual input or software-based parsing. Manual processes are error-prone and time-consuming, leading to duplication, inconsistencies, and potential compliance issues. Purely software-based methods often lack standardization and cannot be seamlessly integrated into enterprise-wide document repositories.

[0003] There is a need for a hardware-based system that extracts metadata directly from CAD files, interprets the structured data, and automatically uploads it to a document management system. This reduces human error, ensures consistency, and guarantees traceability throughout the entire lifecycle of a design document.

[0004] Integrating computer-aided design workflows into enterprise-wide document management systems has long been a challenge in engineering, manufacturing, and industrial product lifecycle management. Computer-aided design files are inherently complex, containing not only geometric and structural information about a part or assembly, but also extensive metadata including version history, material properties, tolerances, author information, and cross-references to related parts. In many industrial environments, simply storing the design file in a digital repository is insufficient. Instead, structured metadata must be extracted and uploaded to document management systems to enable precise indexing, searching, validation, and retrieval of files.This requirement is gaining importance in industries such as aerospace, automotive, construction and electronics manufacturing, where compliance with standards and traceability of design revisions are essential.

[0005] Existing solutions for integrating CAD metadata into document management systems traditionally rely on software tools embedded within design applications. Many commercial CAD systems include export programs or plug-ins that allow designers to manually populate metadata fields before saving or exporting the file. These programs can generate a metadata file in formats such as Extensible Markup Language (EML) or comma-separated values ​​(CSV), which can then be imported into a document management system. While such methods offer a degree of functionality, they are highly dependent on user input. Designers must manually confirm or enter metadata values, leading to inconsistencies due to typos, missing required fields, or deviations from organizational naming conventions.Since these programs are also software extensions for design applications, they often lack universal compatibility with different CAD software packages. In companies with multiple CAD tools, metadata export programs can generate inconsistent schemas that complicate later integration.

[0006] Another class of existing solutions comprises middleware applications that act as intermediaries between design systems and document management systems. These middleware solutions typically run on enterprise servers and are configured to monitor file repositories. When a new design file is added, the middleware attempts to analyze the file, extract metadata, and upload the results to a document management system. While this enables automation compared to purely manual methods, it also presents other challenges. Middleware applications are generally based on proprietary analysis libraries tailored to specific file formats. Therefore, as file formats evolve or companies adopt new CAD software, the middleware must be updated to remain compatible.These updates are not only costly, but also lead to downtime and the risk of data loss during the transition phases. Furthermore, middleware solutions are often resource-intensive, consuming significant server processing power and memory when parsing large assemblies or complex, multi-layered files. In high-volume environments where thousands of files are generated weekly, this processing overhead can lead to performance bottlenecks.

[0007] Another limitation of middleware solutions is the problem of schema inconsistency. Metadata extracted from a CAD file does not necessarily conform to the schema required by the document management system. For example, a CAD file might contain multiple descriptors for material specifications, while the document management system only allows one standardized field. Resolving such inconsistencies often requires manual intervention or custom mapping rules, increasing complexity and reducing reliability. As companies expand, maintaining these mapping rules across multiple departments and global design teams becomes unsustainable.

[0008] Another approach is the use of scripts and macros in design authoring environments. Engineers can create custom scripts to automatically extract specific metadata fields and export them to structured formats. While this offers flexibility, it requires expertise and is difficult to scale to large organizations. Scripts are prone to errors when file formats change, different design teams follow different modeling practices, or metadata is embedded in unconventional structures within the design file. Furthermore, script-based solutions lack standardized error handling and often require intervention when unexpected conditions arise. This results in an unstable workflow that compromises the reliability of automated uploads to document management systems.

[0009] Cloud-based tools for collaborative design have also emerged as a potential solution. Some platforms offer integrated document management features. These solutions attempt to centralize file storage, version control, and metadata management in a unified online environment. However, cloud-based tools present significant drawbacks for organizations working with highly sensitive or proprietary design data. Industries such as defense, energy, and healthcare are often subject to strict data privacy regulations that prohibit the use of external cloud storage for design files. Even when cloud-based tools are permitted, they are frequently limited by bandwidth restrictions and latency issues when uploading large assemblies.Furthermore, these systems tend to tie companies to specific ecosystems and limit interoperability with existing document management infrastructures.

[0010] Enterprise resource planning (ERP) systems and product lifecycle management (PLM) suites also include modules for design document management. While these systems offer powerful integration capabilities, their implementation is notoriously complex and resource-intensive. Deploying PLM systems requires months or even years of configuration, customization, and training. Even after deployment, extracting metadata from CAD files and synchronizing it with PLM schemas remains challenging and often necessitates the development of custom connectors. This complexity leads to high costs, lengthy delays, and resistance from design teams who must adapt their workflows to rigid system structures.

[0011] Another problem with all existing solutions is the lack of a standardized, hardware-based mechanism for metadata extraction. Current methods rely solely on running software in general-purpose computing environments, leading to security vulnerabilities and inefficiencies. Parsing complex design files is computationally intensive and, when performed on shared servers or design workstations, competes with other critical workloads. Purely software-based solutions also pose cybersecurity risks, as maliciously modified files can exploit parsing vulnerabilities to inject unauthorized data into corporate systems.

[0012] There is a clear gap in the development of a hardware-based, dedicated system designed exclusively for the extraction, formatting, and secure upload of CAD metadata into document management systems.

[0013] The drawbacks of existing solutions are most evident in scenarios requiring regulatory compliance. In the aerospace industry, for example, every design change must be traceable to an author, a timestamp, and a justification for the change. Manual metadata extraction carries a significant risk of incomplete or inaccurate datasets, potentially jeopardizing compliance with aviation regulations. Similarly, in medical device manufacturing, regulatory audits require the precise retrieval of design documentation, which relies heavily on accurate metadata indexing. Purely software-based extraction methods relying on user input cannot guarantee the consistency and reliability required in such contexts.

[0014] Another dimension of the problem arises in collaborative environments where multiple teams or suppliers are involved in a single design project. Each team may use different CAD software and follow different metadata conventions. Without a reliable and standardized extraction mechanism, document management systems become overloaded with inconsistent entries, diminishing their usefulness for project management and decision-making. This fragmentation can delay production schedules, increase costs, and introduce quality risks for the final product.

[0015] Even in less regulated environments, the inefficiencies of existing metadata extraction solutions lead to wasted development time and higher operating costs. Designers spend valuable hours filling out forms or correcting metadata errors instead of focusing on innovation and product development. IT departments must constantly maintain and update middleware or scripts, diverting resources from more strategic tasks. At scale, these inefficiencies result in significant losses in productivity and competitiveness.

[0016] These cumulative disadvantages necessitate a dedicated hardware system. Such a system would provide a consistent and standardized mechanism for extracting metadata, independent of the CAD software. By offloading the parsing and formatting overhead to a dedicated device, companies could reduce the workload on their workstations and servers. Hardware-level implementation also allows for better control of data security, as dedicated encryption and authentication modules can be integrated into the device. In this way, the system would not only improve reliability and efficiency but also meet the stringent compliance and security requirements of modern industrial design workflows.

[0017] Taken together, existing solutions offer a partial solution for CAD metadata extraction for upload to document management systems. However, none of these solutions achieves the balance of automation, standardization, scalability, and security demanded by today's industry. Manual tools remain error-prone, middleware is expensive and inflexible, scripts are vulnerable, cloud platforms compromise data sovereignty, and enterprise suites are overly complex. This leaves a gap for a solution that is both specialized and robust, seamlessly integrating design and document management. The present invention seeks to close this gap with a hardware-based system that enables consistent, automated, and secure metadata extraction and upload for CAD workflows. Summary

[0018] The invention provides a hardware-based system for extracting metadata and uploading CAD files to a document management system. The system comprises a processing unit, a metadata interpretation controller, a structured data formatter, a storage unit, and a secure communication module. The processing unit executes instructions for parsing the CAD files stored in memory. The metadata interpretation controller identifies the structural parameters, revision attributes, and classification descriptors embedded in the CAD file. The structured data formatter translates the extracted metadata into a schema compatible with a document management system. The secure communication module transmits the structured metadata and the associated CAD files to the document management system via an authenticated connection.

[0019] In one embodiment, the system is integrated into a dedicated machine that includes an enclosure, input / output interface circuitry for receiving design files via USB or network connections, a graphical display for real-time monitoring, and embedded controllers for managing the analysis logic and formatting functions. The machine operates as a standalone device and can be installed in industrial design offices to serve as a direct bridge between design authoring environments and enterprise-wide document management infrastructures.

[0020] The main objective of the present invention is to provide a CAD system for extracting metadata that ensures the precise, consistent, and automated transfer of design-related metadata to a document management system without requiring manual data entry or software-dependent scripting. A further objective of the invention is to reduce the errors and inconsistencies associated with manual workflows by implementing a hardware-based approach in which dedicated processors and controllers are specifically configured for analyzing and interpreting the metadata embedded in complex design files. Another objective of the invention is the seamless integration of different CAD software environments to avoid interoperability problems and schema inconsistencies of existing software-centric solutions.

[0021] The invention also aims to improve the efficiency of design data processing. To this end, a dedicated device is provided that relieves general workstations and servers of the analysis and formatting of metadata. This ensures the uninterrupted execution of core design activities while simultaneously guaranteeing a reliable pipeline for metadata extraction and upload. A further objective of the invention is the secure transmission of metadata and associated design files through the use of encryption controllers and authentication modules that meet the security and legal requirements of companies.Another important goal is to facilitate compliance in industries such as aerospace, automotive and medical technology by creating a traceable and verifiable record of uploaded design metadata, ensuring compliance with legal regulations and supporting audits.

[0022] The invention is also intended to enable user-friendly operation via an integrated interface, allowing designers or operators to preview extracted metadata, configure mapping rules for enterprise schemas, and confirm or initiate uploads to the document management system with minimal training or technical expertise. A further objective is to provide a standalone machine structure that can be deployed in industrial design offices as a standardized, scalable, and easily maintainable solution to bridge the gap between CAD environments and enterprise-wide document repositories. Taken together, these objectives position the invention as a groundbreaking advancement in design documentation management, overcoming long-standing limitations of manual methods, middleware solutions, and software-dependent integration systems. BRIEF DESCRIPTION OF THE FIGURE

[0023] These and other features, aspects, and advantages of the present invention will be better understood if the following detailed description is read with reference to the accompanying drawing, in which the same symbols consistently represent the same parts. The following applies: Fig. Figure 1 shows a block diagram of an automated system for capturing audit evidence and compliance reports in IT service management (ITSM) platforms.

[0024] Experts will also recognize that the elements in the drawing are shown for the sake of simplicity and are not necessarily to scale. For example, the flowcharts illustrate the process by highlighting the main steps to enhance understanding of the aspects of this disclosure. Furthermore, with regard to the design of the device, one or more components of the device may be represented in the drawing by conventional symbols, and the drawing may show only the specific details relevant to understanding the embodiments of this disclosure, so as not to clutter the drawing with details that are readily apparent to those skilled in the art after reading this description. Detailed description of the invention

[0025] For a better understanding of the inventive principles, reference is made below to the embodiment shown in the drawing, which is described in specific terminology. However, this does not limit the scope of the invention. Changes and further modifications of the illustrated system, as well as further applications of the inventive principles, are possible, as would normally occur to a person skilled in the art in the field of invention.

[0026] It is clear to the person skilled in the art that the preceding general description and the following detailed description are exemplary and explanatory of the invention and are not intended as a limitation of it.

[0027] References in this specification to “an aspect”, “another aspect”, or similar expressions mean that a particular feature, structure, or property described in connection with the embodiment is included in at least one embodiment of the present disclosure. Therefore, occurrences of the expressions “in one embodiment”, “in another embodiment”, and similar expressions in this specification may all refer to the same embodiment, but need not.

[0028] The terms "includes," "include," or other variations thereof are intended to cover non-exclusive inclusion, such that a process or method that includes a list of steps may not only contain those steps but may also include other steps not expressly listed or inherent in such process or method. Likewise, the statement "includes..." in the case of one or more devices, subsystems, elements, structures, or components does not, without further limitations, preclude the existence of other devices, subsystems, elements, structures, components, or additional devices, subsystems, elements, structures, or components.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as understood by a person skilled in the art in the field of the invention. The system, methods, and examples provided here serve only for illustration and are not to be construed as a limitation.

[0030] Embodiments of the present disclosure are described in detail below with reference to the attached drawing.

[0031] In Fig.Figure 1 shows a block diagram of an automated system for capturing test evidence and reporting conformity in IT service management (ITSM) platforms.System 100 comprises: a central processing unit (102) configured to control all metadata extraction operations and coordinate the interaction between multiple hardware subsystems; a metadata interpretation controller (104) connected to the central processing unit, which has a dedicated analysis circuit that reads file headers, attribute tables, revision identifiers, and embedded descriptors from a CAD file; a structured data formatter (106) connected to the metadata interpretation controller, which transforms the extracted metadata into a normalized schema compatible with predefined fields of a document management system; a volatile memory module and a non-volatile memory module (108), each connected to the central processing unit.The volatile memory module stores runtime processing states, and the non-volatile memory module maintains persistent logs of the extracted metadata and completed upload transactions. A secure communication module (110) comprising an encryption controller and an authentication controller, wherein the secure communication module is configured to transmit the structured metadata and the associated CAD file to the document management system via an authenticated and encrypted connection; and an operator interface (112) comprising a graphical display unit and physical input controls, wherein the operator interface is configured to allow an operator to preview the extracted metadata, configure schema mapping rules, and initiate or approve metadata upload operations.

[0032] In one embodiment, the metadata interpretation controller (104) is implemented using dedicated hardware logic gates mounted on a printed circuit board, and wherein the metadata interpretation controller is further configured to perform a hierarchical analysis of nested CAD assemblies such that metadata corresponding to the subcomponents are identified and organized in a structural parent-child relationship, the structural parent-child relationship being preserved during transmission to the document management system.

[0033] In one embodiment, the structured data formatter (106) comprises a hardware-based schema alignment circuit configured to compare extracted metadata fields against an enterprise schema stored in the non-volatile memory module. The schema alignment circuit is further configured to generate substitution mappings for non-compliant fields and discard redundant or conflicting metadata attributes, thereby ensuring compliance with the enterprise classification rules prior to uploading.

[0034] In one embodiment, the secure communication module (110) also includes a cryptographic key storage controller configured to store encryption keys in tamper-proof hardware, and wherein the encryption controller is configured to implement hardware-accelerated symmetric and asymmetric encryption operations, thereby ensuring that both metadata and design files are transmitted securely without relying on software-level encryption libraries.

[0035] In one embodiment, the operator interface (112) comprises a touch-sensitive graphic display field integrated into the system housing. The touch-sensitive graphic display field is configured to provide real-time visualization of extracted metadata fields, allow the selection of specific attributes for inclusion or exclusion, and display the progress of encrypted upload operations to the document management system.

[0036] In one embodiment as a dedicated machine, the machine comprises: a rigid metal enclosure enclosing a printed circuit board assembly; a thermal management structure with heat sinks and vents configured to dissipate heat generated by the central processing unit, metadata interpretation controller, structured data formatter, and secure communication module during continuous operation; a plurality of input / output ports mounted on the enclosure, wherein the plurality of input / output ports includes at least one Universal Serial Bus port and at least one network port, and the input / output ports are configured to receive CAD files from external storage devices and local networks;and an integrated power supply configured to provide all system components with regulated electrical energy, thus enabling continuous independent operation of the machine for metadata extraction and automated uploading to document management systems.

[0037] In one embodiment, the printed circuit board assembly also includes an isolation controller configured to electrically isolate the metadata interpretation controller from the secure communication module, thereby preventing direct, unauthorized access from input / output ports to the secure communication paths. The isolation controller is implemented using hardware-level bus arbitration and controlled data handshakes enforced by the central processing unit.

[0038] In one embodiment, the volatile memory module (108) comprises a high-speed random-access memory provided for the temporary storage of extracted metadata arrays, and wherein the non-volatile memory module comprises a solid-state drive configured to store historical extraction records, system configuration data, and enterprise schema templates, so that the system can resume operation after unexpected interruptions without loss of data integrity.

[0039] In one embodiment, the structured data formatter (106) is also configured to generate conformance verification records that include time-stamped logs of decisions to map metadata fields, encryption status reports, and confirmation receipts received from the document management system, and wherein the conformance verification records are stored in the non-volatile memory module for auditing purposes in regulated industries.

[0040] In one embodiment, the secure communication module (110) also includes a hardware firewall circuit configured to filter and validate communication packets exchanged with the document management system. The firewall circuit is directly coupled to the encryption controller, ensuring that only validated and encrypted packets are transmitted externally. This provides protection against unauthorized access and interception during metadata upload.

[0041] The CAD system for metadata extraction described in the present invention is a hardware-based solution that overcomes the limitations of manual, purely software-based, or middleware-based approaches to metadata processing in industrial design workflows. The system is implemented as a combination of dedicated controllers, storage units, and secure communication modules coordinated by a central processing unit. Each subsystem assumes a specialized role in the end-to-end pipeline of metadata extraction, formatting, and upload. The system's operation can be described based on the underlying technical process, which is hardware-supported to ensure reliability, standardization, and security.

[0042] The workflow begins when a CAD file is read into the system via one of the input / output ports. The central processing unit initializes the metadata interpretation controller and assigns it parsing instructions according to the detected file format. The metadata interpretation controller uses a dedicated parsing circuit that performs low-level scans of the input file's binary structure. Unlike software parsers, which process data sequentially, the hardware-implemented parser uses parallelized state machines to simultaneously examine file headers, embedded attribute tables, revision identifiers, and descriptor blocks. This technical arrangement enables the system to efficiently extract multiple metadata categories in real time. The controller identifies structural hierarchies within the file, such as...The system analyzes assemblies and subcomponents, generating a relational representation that preserves the parent-child relationships between the components. This relational structure is then passed to the central processing unit for further processing.

[0043] After extraction is complete, the central processing unit forwards the raw metadata array to the structured data formatter. The structured data formatter is implemented as a hardware-based schema matching circuit that performs a transformation technique. This technique first compares the extracted metadata against an enterprise schema template stored in the non-volatile memory module. The formatter checks whether all required fields are present, searches for duplicates, and ensures data type compatibility with the enterprise schema. In case of discrepancies, the formatter applies replacement rules derived from preconfigured mapping tables. For example, if a material descriptor in the design file uses a non-standard naming convention, the replacement rules replace it with the approved equivalent defined in the schema template.Redundant fields or fields that contradict existing schema requirements are discarded. This technique ensures that the metadata record precisely conforms to organizational standards before transmission.

[0044] The system also offers compliance checking at the formatting level. For each processed metadata field, the formatter generates a timestamped log entry indicating whether the field was accepted, replaced, or rejected. This log is stored in the non-volatile memory module, creating an immutable compliance record. Such records are essential for regulated industries where every transformation in the data pipeline must be auditable.

[0045] After schema adaptation, the structured metadata array is transferred to the secure communication module for upload. The secure communication module implements a multi-stage process involving validation, encryption, and authentication. Incoming data packets are first routed through a hardware firewall, which validates the packet structure and blocks unauthorized traffic. After validation, the data is forwarded to the encryption controller, which executes hardware-accelerated symmetric and asymmetric encryption methods. The encryption process uses session keys from a cryptographic key store located in tamper-proof storage. Each session key is generated individually for every upload transaction. This ensures that even a compromised transaction does not jeopardize future communications.

[0046] The authentication controller then performs a handshake with the target document management system. This includes a mutual certificate check and a secure challenge-response exchange to confirm the system's identity. Only after successful authentication are the encrypted metadata transmitted to the document management system via the output channel. After confirmation of the upload, the system captures a transaction record containing a confirmation token, encryption status, and timestamp. This record, along with the compliance verification record, is stored in the non-volatile memory module, ensuring a complete audit trail of the extraction and upload process.

[0047] The process also includes an operator interaction phase. The user interface provides a real-time graphical visualization of the extracted metadata, allowing the operator to manually review the fields before uploading. The interface is interactive and allows the selection of attributes for inclusion or exclusion via the touchscreen. If the operator overrides the automatic schema assignment, the system logs the operator action in the compliance log. This ensures that every manual intervention is documented and can be attributed to a specific operator, thus increasing accountability.

[0048] For large and complex assemblies, the technology employs an optimized hierarchical parsing mode. The metadata interpretation controller scans multiple subfiles in parallel, and the central processing unit delivers the results to the formatter in batches. This prevents system overload and ensures consistent throughput. The volatile memory module supports this process by buffering large amounts of data, while the non-volatile memory module ensures persistence during unexpected interruptions such as power outages. If a system failure occurs, the recovery technique can resume processing from the last confirmed batch without re-parsing the entire assembly. This saves time and processing power.

[0049] From a security perspective, this technology goes beyond simple transmission encryption. The isolation controller integrated into the circuit board enforces strict bus arbitration rules and ensures that no unauthorized data path exists between the input / output ports and the secure communication module. All metadata extracted from input files must pass through the central processing unit and the metadata interpretation controller before reaching the formatter and communication circuits. This architecture eliminates the risk of directly injecting malicious data into secure communication channels.

[0050] The overall operation of the system therefore represents a closely coordinated sequence of hardware-based techniques. For efficiency reasons, parsing is performed in parallelized state machines, formatting is carried out by schema alignment circuits with compliance logging, secure transmission is ensured by encryption and authentication controllers, and auditability is guaranteed by permanent logging in non-volatile memory. At each stage, the system minimizes dependence on standard software by embedding technical functions in dedicated controllers and circuits. This not only increases reliability and processing speed but also ensures that the system remains resilient to software vulnerabilities and enables continuous operation in high-volume industrial environments.

[0051] The described technical process enables the system to fully automate metadata extraction and upload to the document management system, while simultaneously allowing for user control, regulatory compliance, and enterprise integration. The combination of dedicated parsing controllers, schema formatting circuits, encryption modules, and audit logging ensures that the extracted metadata is accurate, standardized, secure, and traceable. This overcomes the shortcomings of existing solutions and establishes a reliable bridge between CAD environments and enterprise document repositories.

[0052] The CAD metadata extraction system includes a central processing unit that coordinates the metadata extraction workflows. This processing unit is connected to a metadata interpretation controller via an internal high-speed bus. The metadata interpretation controller executes analysis logic that searches file headers, attribute blocks, embedded property tables, and linked references within the CAD file. Extracted metadata includes material codes, version numbers, tolerance specifications, assembly identifiers, and author details.

[0053] The system also includes a structured data formatter implemented in hardware logic, which converts the extracted metadata into a normalized schema suitable for the document management system. The formatter ensures compliance with company standards by enforcing mandatory fields and discarding redundant or conflicting attributes.

[0054] A storage unit is used to store temporary processing states, extracted metadata records, and log files from upload operations. The storage unit consists of volatile memory for runtime processing and non-volatile memory for archiving.

[0055] A secure communication module enables the controlled transfer of metadata and design files to the document management system. The module includes an encryption controller and an authentication unit to ensure the integrity and confidentiality of the transmitted information.

[0056] The system is operated via a user interface with a graphical display and tactile input elements. Through this interface, an operator can review extracted metadata before uploading, initiate processing tasks, and configure mappings between extracted metadata fields and the document management system's schema.

[0057] In one implementation, the system is housed as a self-contained hardware device in a compact enclosure. The enclosure contains the processing unit, controller, formatting logic, storage units, and communication modules on a single circuit board. The enclosure features external ports for receiving design files via storage devices, local area networks, or dedicated input ports. It also incorporates heat dissipation features such as fins and vents to ensure thermal stability.

[0058] The invention belongs to the field of digital design data management and, in particular, to hardware-based systems for the automated extraction, formatting, and secure transfer of metadata from CAD files. The invention lies at the interface between CAD technologies, document management systems, and data security, and is applicable in industries that require standardized documentation, reliable traceability, and compliance with legal regulations. The presented system offers a technical solution for integrating design file metadata into enterprise repositories by combining dedicated processing units, schema alignment hardware, and secure communication circuits in a self-contained machine for industrial use.

[0059] The drawing and the preceding description show examples of embodiments. Those skilled in the art will recognize that one or more of the described elements can be combined to form a single functional element. Alternatively, certain elements can be divided into several functional elements. Elements of one embodiment can be added to another embodiment. For example, the sequence of the processes described here can be changed and is not limited to the manner described here. Furthermore, the actions of a flowchart need not be implemented in the sequence shown; nor does it necessarily have to be performed by all actions. Actions that are not dependent on other actions can also be performed in parallel with the other actions. The scope of the embodiments is in no way limited by these specific examples.Numerous variations are possible, whether explicitly stated in the specification or not, such as differences in structure, dimensions, and material usage. The range of embodiments is at least as broad as specified in the following claims.

[0060] Advantages, further benefits, and problem solutions have been described above with reference to specific embodiments. However, the advantages, benefits, problem solutions, and all components that can lead to an advantage, benefit, or solution occurring or becoming more apparent are not to be construed as critical, necessary, or essential features or components of individual or all claims. REFERENCES 100 An automated system for capturing audit evidence and for compliance reporting in IT service management platforms (ITSM). 102 Central unit 104 Metadata Interpretation Controllers 106 Formatters for Structured Data 108 Volatile Memory Module and One Non-Volatile Memory Module 110 Secure communication module 112 User interface

Claims

[1] A computer-aided design metadata extraction system for automated uploads to a document management system, the system comprising: a central processing unit configured to control all metadata extraction operations and coordinate the interaction between multiple hardware subsystems; a metadata interpretation controller connected to the central processing unit, which includes a dedicated analysis circuit configured to read file headers, attribute tables, revision identifiers and embedded descriptors from a CAD file; a structured data formatter coupled with the metadata interpretation controller, wherein the structured data formatter is configured to convert the extracted metadata into a normalized schema compatible with predefined fields of a document management system; a volatile memory module and a non-volatile memory module, each coupled to the central processing unit, wherein the volatile memory module is configured to store runtime processing states and the non-volatile memory module is configured to retain persistent logs of extracted metadata and completed upload transactions; a secure communication module comprising an encryption controller and an authentication controller, wherein the secure communication module is configured to transmit the structured metadata and the associated CAD file to the document management system via an authenticated and encrypted connection; and an operator interface comprising a graphical display unit and physical input controls, wherein the operator interface is configured to allow an operator to preview the extracted metadata, configure schema mapping rules, and initiate or approve metadata upload operations. [2] System according to claim 1, wherein the metadata interpretation controller is implemented using dedicated hardware logic gates mounted on a printed circuit board, and wherein the metadata interpretation controller is further configured to perform a hierarchical analysis of nested CAD assemblies such that metadata corresponding to the subcomponents is identified and organized in a parent-child structure relationship, wherein the parent-child structure relationship is preserved during transmission to the document management system. [3] System according to claim 1, wherein the structured data formatter comprises a hardware-based schema alignment circuit configured to compare extracted metadata fields with an enterprise schema stored in the non-volatile memory module, wherein the schema alignment circuit is further configured to generate substitution mappings for non-compliant fields and discard redundant or conflicting metadata attributes, thereby ensuring compliance with the enterprise classification rules prior to uploading. [4] System according to claim 1, wherein the secure communication module further comprises a cryptographic key storage controller configured to store encryption keys in tamper-proof hardware, and wherein the encryption controller is configured to implement hardware-accelerated symmetric and asymmetric encryption operations, thereby ensuring that both metadata and design files are transmitted securely without relying on software-level encryption libraries. [5] System according to claim 1, wherein the operator interface comprises a touch-sensitive graphic display field integrated into the housing of the system, and wherein the touch-sensitive graphic display field is configured to provide real-time visualization of extracted metadata fields, enable the selection of specific attributes for inclusion or exclusion, and display the progress of encrypted upload operations to the document management system. [6] The system according to claim 1 is designed as a dedicated machine, the machine comprising the following: a rigid metal housing that encloses a printed circuit board assembly; a thermal management structure with heat sinks and ventilation openings configured to dissipate heat generated by the central processing unit, metadata interpretation controller, structured data formatter, and secure communication module during continuous operation; a plurality of input / output ports mounted on the housing, wherein the plurality of input / output ports includes at least one universal serial bus port and at least one network port, wherein the input / output ports are configured to receive CAD files from external storage devices and local networks; and an integrated power supply configured to provide regulated power to all system components, thus enabling continuous standalone operation of the machine for metadata extraction and automated uploading to document management systems. [7] System according to claim 6, wherein the printed circuit board arrangement further comprises an isolation controller configured to electrically isolate the metadata interpretation controller from the secure communication module and thereby prevent direct, unauthorized access from input / output ports to the secure communication paths, and wherein the isolation controller is implemented using hardware-level bus arbitration and controlled data handshakes enforced by the central processing unit. [8] System according to claim 1, wherein the volatile storage module comprises a high-speed random access memory provided for the temporary storage of extracted metadata arrays, and wherein the non-volatile storage module comprises a solid-state drive configured to store historical extraction data sets, system configuration data and enterprise schema templates, so that the system can resume operation after unexpected interruptions without loss of data integrity. [9] System according to claim 1, wherein the structured data formatter is further configured to generate conformity verification records comprising time-stamped logs of decisions to map metadata fields, encryption status reports and confirmation receipts received from the document management system, and wherein the conformity verification records are stored in the non-volatile memory module for auditing purposes in regulated industries. [10] System according to claim 1, wherein the secure communication module further comprises a hardware firewall circuit configured to filter and validate communication packets exchanged with the document management system, wherein the firewall circuit is directly coupled with the encryption controller so that only validated and encrypted packets are transmitted externally, thereby ensuring protection against unauthorized intrusion and interception during the uploading of metadata.

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