5 lessons learned from ISO STEP Designing for reuse is critical, despite difficulties in specifying what that means –Results will include smaller clusters of models mapped to one another, or perhaps imported by one another to create larger federated models –Requires processes for determining how/when to split models or model groups as scope increases –Calls for tools that can manage and browse small groups of inter- related models –Requires a notion similar to a make file, for pulling smaller clusters together to create larger models, which themselves may be reusable in broader context Current STEP (STandard for the Exchange of Product Data) repository includes over 400 modules –Communities have built additional repositories around core STEP standards to add business-specific extension/content/user guides –There is a quality/integration review and signoff of everything that goes into the sharable repository, which frequently finds problems * courtesy David Price, EuroSTEP
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