Typically, complex engineering artifacts are designed by teams who may not all be located in the same building or even city. Additionally, besides having to design a part of an artifact to be consistent with the specification, it must also be consistent with the company's design standards. The Designers' Workbench supports designers by checking that their configurations satisfy both physical and organisational constraints. The system uses an ontology to describe the available elements in a configuration task. Configurations are composed of features, which can be geometric or nongeometric, physical or abstract. Designers can select a class of feature (e.g. Bolt) from the ontology, and add an instance of that class (e.g. a particular bolt) to their configuration. Properties of the instance can express the parameters of the feature (e.g. the size of the bolt), and also describe connections to other features (e.g. what parts the bolt is used to hold together).
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