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Validation Testing System Requirements



KC Morris, Michael Mclay, Peter Carr


The need to share complex data across multiple enterprises, using different computing systems and networks is growing. The ISO STandard for the Exchange of Product model data (STEP) addresses this need by providing information models which clearly and unambiguously describe this data for different enterprise applications. The validity of these information models is essential for success in sharing data in a highly automated business environment.

This document describes requirements for software to support the testing of information models for validity and correctness. The requirements provide a basis for the software development to support the Validation Testing Systems (VTS) within the National PDES Testbed.

This document describes the software needs as currently known for a complete validation testing system. It identifies the scope of the VTS software; presents functional requirements for the proposed system; describes the data flow, environment, external interfaces, performance, and documentation requirements of the system; and prioritizes the requirements for the purpose of implementing the proposed system.

NIST Interagency/Internal Report (NISTIR) - 4676
Report Number


computing systems, multiple enterprises, PDES, product model data, STEP


Morris, K. , McLay, M. and Carr, P. (1991), Validation Testing System Requirements, NIST Interagency/Internal Report (NISTIR), National Institute of Standards and Technology, Gaithersburg, MD, [online],, (Accessed June 22, 2024)


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Created December 31, 1990, Updated October 12, 2021