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REXS Specification

REXS 1.4 to 1.5

Extensions

Notice

Change from REXS version 1.4

The ability to reference external data sources is new.

Notice

Change from REXS version 1.4

The possibility to exchange REXS models also in JSON file format is now officially part of the REXS specification.

Notice

Change from REXS version 1.4

The ability to characterize attributes as "user_defined" or "calculated" is new.

Notice

Change from REXS version 1.4

The date_time data type is new.

Notice

Change from REXS version 1.4

Various attribute changes and extensions. These are documented in the REXS database.

Adaptations/clarifications

Notice

Change from REXS version 1.4

Up to and including REXS 1.4, the REXS specification contained requirements for the consistency and completeness of REXS models. These are omitted from REXS 1.5, as the REXS specification itself should allow for a wide range of  modeling options and modeling depths without being overly restrictive. This flexible base specification can be supplemented by modeling guidelines which define additional boundary conditions for specific applications.

Notice

Change from REXS version 1.4

Clarification: the viewing direction or "left" and "right" can be defined separately for each component which has a coordinate system. In particular, the u-axis of a component on a shaft does not necessarily need to point in the same direction as the u-axis of the shaft itself.