F4_SCXI System Context Interaction Viewpoint
| Domain | Aspect | Maturity |
|---|---|---|
| Functional | Interaction & Collaboration |  released |
Purpose
The System Context Interaction Viewpoint describes the System external behavior based on the exchange between Logical SOI and Logical Context Elements Usage in a given System Context. It depicts the sequence of interactions between the Logical SOI, the Context Elements and the exchanged Domain Item Kinds needed to accomplish a given System Process. Note: The System Context Interaction Viewpoint may refine a System Use Case.
Applicability
The System Context Interaction Viewpoint supports the “prepare for system requirement definition” activity included in the “System Requirements Definition Process” of the INCOSE SYSTEMS ENGINEERING HANDBOOK 2023 [§2.3.5.3] and contributes to the functional boundary definition.
Supported Processes
Supported Information Items
Presentation
A sequence diagram featuring the flow of control between SOI and Context Elements Roles of a System Context to achieve one outcome of a System Use Case. Note: This diagram depicts the sending and receiving of messages between the interacting entities called lifelines, where time is represented along the vertical axis. The lifelines representatives are part properties typed by a System Context Elements.
Stakeholder
- Acquirer
- Customer
- Hardware Developer
- IV&V Engineer
- Operator
- Safety Expert
- Security Expert
- Software Developer
- System Architect
- User
Concern
- How is the system being used or utilized and interacting with other external systems to satisfy user needs?
- What is the necessary response time for an interface or a service?
- What is the sequence of interactions among the system and context elements on concpetual level?
Exposed Concepts
The Diagram shows the concepts exposed by the viewpoint, and related concepts if necessary.
The Table shows the concepts exposed by the viewpoint, and related concepts if necessary.
| Concept | Documentation |
|---|---|
| System Context Scenario Participation | Specifies the fact that a System Context Role participates in a System Context Interaction Scenario. |
| System Context Interaction Scenario | Ordered sequence of exchanges of information, energy, or material between System Context Interaction Scenario Participants. |
| Logical Context Element Role | Specifies the fact that a Logical Context Element exists in a given Logical System Context. |
| System Context Chronological Message | Ordered sequential occurrence of exchanges between System Context Interaction Scenario Participants. |
| Logical SOI Role | Specifies the fact that a Logical Context SOI exists in a given Logical System Context. |
Realization of exposed Concepts
The Diagram shows the realization of exposed concepts.
The Table shows the realization of exposed concepts.
Related Viewpoints
Required Viewpoints
Recommended Viewpoints
Example
