5 Part 5: V-Modell Reference Work Products

5.3 Products

5.3.9 System Specifications

The »Discipline »System Specification comprises »Work Products and »Activityies supporting the entire specification process from the overall system to individual software and »Hardware Elements.

In addition to the central product »Overall System Specification, the product group includes four specification types: the »System Specification for System Elements, the »External Unit Specification which specifies units which were not developed within the scope of the project and a Hardware and »Software Specification as well as an »External Hardware Module Specification and an »External Software Module Specification for each system element.

The specifications are closely connected with regard to contents. Proceeding from the Overall System Specification, functional and non-functional requirements of the acquirer will be described and refined in the system specifications and finally, as interfaces, in the specifications of hardware and »Software Element s. In this way, a continuous and repeatable development process and a suitable tracking of requirements can be realized.