View MODAF:SV-10b Resource State Transition Description View

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Overview

The SV-10b Resource State Transition Description View is part of the MODAF System Viewpoint and one of the 47 MODAF views*.

Version & Date

Version 1.2.004.

* =  changed at 1.2.004

+ =  new at 1.2.004

The change history is derived from the definition of each MODAF view within the The MODAF System Viewpoint viewpoint defining document from www.mod.uk/modaf.

See MODAF Release History.

Purpose*

From The MODAF System Viewpoint (SV) p39:

The SV-10b Resource State Transition Description is a graphical method of describing a resource’s response to various events by changing its state. The view specifies the possible states a resource can be in, the possible transitions between those states, and the triggers for those changes.

Subject to Crown Copyright

Background

From The MODAF System Viewpoint (SV) p39:

The functional specification of a resources behaviour presented in SV-4, Functionality Description, can show the flows of control and data between resources, but it cannot reflect the changes of state that occur when control or data is passed from one resource to another. SV-10b provides this additional information.

Subject to Crown Copyright

Description

From The MODAF System Viewpoint (SV) p39:

The SV-10b relates events to resource states and describes the transition from one state to another. SV-10b views state transitions from a resource perspective, with a focus on how the resource responds to stimuli (eg triggers and events). As with the Operational State Transition Description (OV-6b), these responses may differ depending upon the rule set or conditions that apply as well as the resource’s state at the time the stimuli is received.

The SV-10b relates states, events, and actions. A state and its associated action(s) specify the response of a resource or function to events. When an event occurs, the next state may vary depending on the current state (and its associated action), the event and the rule set or guard conditions. A change of state is called a transition. Each transition specifies the response based on a specific event and the current state. Actions may be associated with a given state or with the transition between states.

Subject to Crown Copyright

Data Objects

From The MODAF System Viewpoint (SV) p39:

The data in an SV-10b can include:

  • Resources
  • States (associated with a resource or function)
  • State transitions (each associated with an event)

MODAF_SV10b_mm_dataobjects.gif

NB. The M3 does not provide much detail on SV-10b, the assumption being that the UML meta- model (that underpins M3) is sufficient to cover all the requirements for state transition diagrams.+

Subject to Crown Copyright

Presentation*

From The MODAF System Viewpoint (SV) p39:

  • UML state Diagram (preferred)

Subject to Crown Copyright

Configuration History

Comments

References

Other Frameworks

See also:

 

 

Category:Framework -> View
Category:MODAF -> View
Category:Solution

Categories:

 

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