P4_PCXI Physical Context Interaction Viewpoint
| Domain | Aspect | Maturity |
|---|---|---|
| Physical | Interaction & Collaboration |  released |
Purpose
The P4_PCXI Physical Context Interaction Viewpoint supports the specification of sequences of interactions between the physical system and physical external systems across physical connections.
It captures interaction behaviour that is relevant to the physical realization of the system, particularly where it results from physical or technical architectural decisions, such as initialization, handshaking, synchronization, startup, shutdown or recovery.
The viewpoint provides a means to specify the ordering and temporal characteristics of exchanges of information, signals, energy, material or mechanical quantities across physical interfaces.
The viewpoint complements the conceptual System Context Interaction Viewpoint by capturing interaction behaviour that is specific to, or relevant because of, the physical realization of the system
Applicability
The Physical Context Interaction Viewpoint supports the “create system design” activity part of the “Design Definition Process” activities of the INCOSE SYSTEMS ENGINEERING HANDBOOK 2023 [§2.3.5.5] and contributes to the artifacts “System Design Description” and “System Interface Definition”.
Furthermore, the viewpoint supports the “Interface Management” approach of the INCOSE SYSTEMS ENGINEERING HANDBOOK 2023 [§3.2.4].
Supported Processes
Supported Information Items
Presentation
The P4_PCXI Physical Context Interaction Viewpoint is represented by a sequence diagram showing exchanges between the physical system and physical external systems through physical connections.
The sequence may represent ordering, timing, duration, periodicity, synchronization and temporal constraints of exchanges.
The lifelines representatives are SAF_PhysicalContextRole or SAF_PhysicalContextRole_SoI elements.
Stakeholder
- Acquirer
- Customer
- Hardware Developer
- IV&V Engineer
- Operator
- Safety Expert
- Security Expert
- Software Developer
- System Architect
- User
Concern
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 |
|---|---|
| Physical Context Interaction Scenario | Ordered sequence of exchanges of information, energy, or material between Physical Context Interaction Scenario Participants. |
| Physical Context Scenario Participation | Specifies the fact that a Physical Context Role participates in a Physical Context Interaction Scenario. |
| Physical Context Chronological Message | Ordered sequential occurrence of exchanges between Physical Context Interaction Scenario Participants. |
| Physical Context Element Role | Specifies the fact that a Physical Context Element exists in a given Physical System Context. |
| Physical SOI Role | Specifies the fact that a Physical SOI exists in a given Physical 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
