View NAF:NOV-6b Operational State Transition Description Subview



The NOV-6b Operational State Transition Description subview is part of the NATO Operational View and one of the 49 NATO Architecture Framework subviews*.

Version & Date

Version 3.1

* =  changed at 3.1

+ =  new at 3.1

The change history is derived from the definition of each NATO Architecture view within section 5.2.4 NATO Operational View (NOV) in AC/322(SC/1-WG/1)N(2009)0005-ADD2.  NATO Architecture Framework Version 3.1 document from .

See NAF Release History.


From the NATO Architecture Framework v3, CHAPTER 4, Section

The explicit sequencing of activities in response to external and internal events is not fully expressed in NOV-5. An Operational State Transition Description can be used to describe the explicit sequencing of operational activities, especially in terms of the operational activities’ life-cycles. Alternatively, NOV-6b can be used to reflect the explicit sequencing of actions internal to a single operational activity or the sequencing of operational activities with respect to a specific operational node.

Covered by NATO release conditions.


From the NATO Architecture Framework v3, CHAPTER 4, Section

NOV-6b is based on state machines. A state machine is defined as

a specification that describes all possible behaviours of some dynamic model element. Behaviour is modelled as a traversal of a graph of state nodes interconnected by one or more joined transition arcs that are triggered by the dispatching of a series of event instances. During this traversal, the state machine executes a series of actions associated with various elements of the state machine. [OMG, 2003]

State machines can often allow quick analysis of the completeness of the rule set, and detection of dead ends or missing conditions. These errors, if not detected early during the operational analysis phase, can often lead to serious behavioural errors in fielded systems or to expensive correction efforts.

Covered by NATO release conditions.

Data Objects

From the NATO Architecture Framework v3.1, CHAPTER 5, Section

The data in a NOV-6b can include:

Covered by NATO release conditions.

From The MODAF Operational Viewpoint p37:


Subject to Crown Copyright

This diagram is taken from MODAF 1.2.004 MODAF::OV-6b Operational State Transition Description View as it is identical to that in NAF 3.1 with the following substitutions for view/subview number:


Configuration History



Other Frameworks

See also:



Category:Framework -> View
Category:NAF -> Subview



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