In practice, CAD data exchange means: error-free and secure transfer of design data between different software applications and also between organizations (e.g. teams at different locations, cooperating companies, between customers and CAD designers).
Well-known CAD systems such as MicroStation (Bentley Systems), AutoCAD, SolidWorks or CATIA use proprietary file formats. This ensures optimal workflow within the application, but leads to complications when exchanging CAD data. Neutral, open formats such as STEP (ISO 10303) or IGES are part of the solution, because these files can be used across platforms. Despite these formats for CAD data exchange, challenges remain: ensuring data integrity is key. Electronic data interchange (EDI) offers a standardized method in the context of CAD information that has proven itself in practice.
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In a nutshell
The modern manufacturing industry is based on CAD data. Today’s design processes are therefore unthinkable without the efficient exchange of CAD data. Complex engineering products and project and development teams that are now spread across the globe depend on design data being transferred completely, correctly, precisely and securely.
With EDI, electronic data interchange, there is a standardized method that meets all of the requirements mentioned. This article takes a closer look at known challenges and suitable solutions relating to CAD data exchange.
Which technologies and solutions enable and facilitate electronic CAD data exchange?
Open, manufacturer-independent exchange formats enable the exchange of CAD data between different CAD systems in practice. Here are some well-known examples for specific application purposes:
- STEP (Standard for the Exchange of Product model data): widely used standard for the CAD data exchange of detailed 3D models
- IGES (Initial Graphics Exchange Specification): frequently used for the exchange of surface data
- STL (Stereolithography): mainly found in additive manufacturing
CAD translators and so-called middleware also play an important role. With the help of such software solutions, proprietary file formats can be converted into neutral formats and vice versa.
Electronic data interchange (EDI) as a standard for CAD data exchange
EDI (Electronic Data Interchange) is a higher-level technology standard that enables electronic exchange of standardized documents between companies. Electronic data interchange is particularly important in the context of CAD data, as this is known for its volume, complexity and overall high requirements (e.g. security, archiving, legal issues). The following must be exchanged electronically: design data, specifications and other technical data.
EDI ensures that CAD data is transferred in a uniform and efficient manner. This makes collaboration between companies in sectors such as automotive, aerospace, construction or mechanical engineering much easier.
A prominent example of the successful use of EDI in the CAD sector is the automotive industry. Every manufacturer cooperates with a large number of suppliers, so CAD data exchange in standardized formats is crucial in order to exclude errors, streamline workflows and ensure seamless integration into production processes.
EDI in practice: technologies and solutions for CAD
To successfully implement EDI, the Electronic Data Interchange, in CAD data exchange, standard protocols are the key. EDIFACT (Electronic Data Interchange for Administration, Commerce and Transport) and ANSI X12 are two widely used protocols. They are used in many important industries. Another interesting format is XML-based standards, because they offer extra flexibility and are particularly suitable for integration into IT systems.
CAD data exchange (electronic): security, security – and security!
CAD data is sensitive, valuable and security-relevant and must be transmitted electronically in a safe and secure manner. Encryption technologies such as VPNs, SSL/TLS and other methods ensure that sensitive design data is secure at all times during transmission. Another security aspect is EDI integration software. Not only does it enable the automated and secure exchange of EDI/CAD data, but it also ensures seamless integration into existing CAD and ERP/ECM/DMS systems.
Review: interesting case studies from the automotive and aerospace industriesThe integration of STEP data with EDI has led to a significant increase in efficiency in the aerospace industry, perhaps the most complex industry in terms of CAD data exchange. Electronic data exchange and CAD often go hand in hand with cloud software solutions, because the teams and business units are distributed globally on different continents and in different time zones. Successful CAD data exchange projects of this kind clearly show how important careful planning and the selection of the right technologies are.
Outlook: Future developments and trends
The electronic data exchange of CAD data is now firmly established, but new technologies are opening up new possibilities. Innovations such as the Internet of Things (IoT), artificial intelligence (AI) and blockchain are particularly relevant for the future of CAD data exchange.
The IoT enables comprehensive real-time monitoring of production processes, while AI is already making it easier to analyze and process large amounts of data. Blockchain could theoretically further increase the security of CAD data exchange processes in the future.
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Conclusion
CAD data exchange, with or without EDI, must be efficient, because this aspect has a major impact on the competitiveness of modern CAD companies. Standardized formats and secure transmission paths, and possibly also innovative technologies, improve both cooperation between companies and CAD collaboration within teams. In times of high competition, falling margins and increasing demands, process optimization is a key factor.