Model-based System Development : Feature-based System Design Approach : Building the Conceptual Model

Building the Conceptual Model

The feature-based system design process follows an iterative bottom-up/top-down approach. It starts at functional decomposition level 2 (Component-Level). See the Functional Decomposition figure).

As a first step the functional requirements are mapped to features described either by means of basic feature models or feature interaction models from the feature library. These validated models then are integrated in a common model - the Conceptual System Model. See Capturing Vehicle-Specific Features in a Conceptual System Model figure.

Capturing Vehicle-Specific Features in a Conceptual System Model

 

 

Note: At this stage it is not necessary to visualize in detail the communication between the individual feature/feature interaction models. The Process Buffer is used symbolically as a means for the interconnection. The broadcasting mechanism is used for external/internal communication.

The benefits derived from the Conceptual System Model are:

The Conceptual System Model is verified and validated through simulation. Test scenarios are derived from the overall system requirements. The recorded test vectors together with the respective system responses form the basis of the later validation of the synthesized system architecture, refer to System Partitioning