Strategic Views (StV) [Capability Views]

StV-4 Capability Dependencies

The StV-4 Product describes the dependencies between planned capabilities. It also defines logical groupings of capabilities (capability clusters).

Note: the name of this MODAF view was changed from ‘Capability Clusters’ following the MODAF Technical Group meeting on 9 February 2007.

Background:

The StV-4 View is intended to provide a means of analysing the dependencies between capabilities and between capability clusters. The groupings of capabilities are logical, and the purpose of the groupings is to guide enterprise management.

Usage:

Data objects:

The data in an StV-4 can include:



Relationships Between Key Data Objects (Simplified from M3)

Representation:

Detailed Product Description:

The Capability Dependencies (StV-4) View describes the relationships between capabilities. It also defines logical groupings of capabilities. This contrasts with StV-2 which also deals with relationships between Capabilities; but StV-2 only addresses specialisation-generalisation relationship (i.e. capability taxonomy).

The StV-4 View is intended to provide a means of analysing the dependencies between capabilities and between capability clusters. The groupings of capabilities are logical, and the purpose of the groupings is to guide enterprise management. In particular, the dependencies and clusters may suggest specific intercations between acquisition projects in order to achieve the overall military capability.

An StV-4 View shows the capabilities that are of interest to the Architecture. It groups those capabilities into logical groupings (“clusters”), based on the need for those elements to be integrated.

The preferred approach for describing an StV-4 View is graphical. The recommended notation is a functional dependency diagram which shows how functions are clustered together and the relationships between the individual functions or clusters of functions. It may also be useful to supplement the functional dependency diagram with a functional n-squared diagram. See examples below.


Example StV-4 (Graphical Format)


Example StV-4 (N-squared Format)

In some cases it may be important to distinguish between different types of dependency in the StV-4. Graphically this can be achieved by colour-coding the connecting lines, or by using dashed lines. From a data modelling perspective, the MODAF Ontology can be used to make use of pre-existing capability dependency types; else modellers can create their own specific dependencies (recording these in the AV-2).

UML can be used to define Capability Dependency View Products as illustrated below.


Example StV-4s (UML Format)

Page version 1.1, dated 4th April 2007

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