The STEP Modular Architecture
Allison Barnard Feeney
National Institute of Standards and Technology,
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100 Bureau Drive, Stop 8264,
Gaithersburg, MD 20899-8264
e-mail: abf@nist.gov
Abstract
The first Technical Note in this series [1] introduced the international standard ISO 10303, informally known as STEP (STandard for the Exchange of Product model data). Subsequent Technical Notes discussed various issues faced by users of STEP and how the ISO TC184/SC4 committee is addressing these issues. This paper presents the current move to modularize the STEP application protocol architecture. This paper describes the initial STEP architecture, requirements for improvements to the architecture, features of the new modular architecture, status and issues.
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