STEP Technologies

ISO 10303-11: 1994 “EXPRESS”

Defines information model

ISO 10303-21: 1994 “Exchange Structure”

Defines format of physical file

ISO 10303-22: 1998 “SDAI”

Defines interface definition language & procedural calls

ISO 10303-4x: 199x “The Generic Resources”

Defines ‘ready-made’ constructs for a ‘generic data model’

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