Teamworks does not provide a model artefact specifically designed to maintain constants used within the Solution. Constants are used to promote consistency, improve maintenance and reduce typographical errors. Exposed Process Values (EPVs) are intended to be used to allow business users modify the parameters affecting business rules within the solution. However, EPVs may also be used to maintain constants.
For each EPV variable the External Name, Variable Name, External Description and Default Value should all be identical, as illustrated in Figure 1. Constants should not be directly exposed within the user interfaces, use localization resources instead.