C4_SITI System Internal Interaction Viewpoint
| Domain | Aspect | Maturity |
|---|---|---|
| Conceptual | Interaction & Collaboration |  released |
Purpose
The SystemInternal Interaction Viewpoint describes System internal behavior based on the exchange between the Conceptual Systems internal Roles It depicts the sequence of interactions between the Conceptual SOI Elements and the exchanged Domain Item Kinds.
Applicability
The System Internal Interaction Viewpoint supports the activities of the System Architecture Definition Process” of the INCOSE SYSTEMS ENGINEERING HANDBOOK 2023 [§2.3.5.4] and contributes to the System Architecture description.
Supported Processes
Supported Information Items
Presentation
A sequence diagram featuring the flow of control between Conceptual Internal Roles within the SOI. 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 lifeline representatives are part properties typed by Conceptual System.
Stakeholder
- Acquirer
- Customer
- Hardware Developer
- IV&V Engineer
- Operator
- Safety Expert
- Security Expert
- Software Developer
- System Architect
- User
Concern
- How do the conceptual system elements interact to provide the system functions?
- What are the items exchanged between conceptual system elements during an interaction?
- What is the necessary response time for an interface or a service?
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 |
|---|---|
| Conceptual Interaction Scenario | Ordered sequence of exchanges of information, energy, or material between Conceptual Interaction Scenario Participants. |
| Conceptual Scenario Participation | Specifies the fact that a Conceptual Internal Role participates in a Conceptual Interaction Scenario. |
| Conceptual Chronological Message | Ordered sequential occurrence of exchanges between Conceptual Interaction Scenario Participants. |
| Conceptual Internal Role | Specifies the fact that a Conceptual System may consist of Conceptual Systems (a white box perspective on a conceptual system). |
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
