Our modeling tools always support the latest versions of standards. The SysML Plugin 19.0 supports the SysML 1.5 specification.

Abstract Requirement 

The updates in specification are related to adding a new concept: the AbstractRequirement concept. It allows you to define and implement any property-based requirement which could be inherited form the AbstractRequirement.

The Property-Based Requirement as a Constraint Block extension.

The changes affect the following diagrams:

Please note, the changes do not affect the common usage of diagrams listed above.

Value Properties notation

Optionally, the unit name or unit symbol could be shown for value properties.

Examples of a unit notation.