NAF v3: NCV-2 MODAF: StV-2
The C1 view covers capabilities and the hierarchical relationships between them.
C1 specifies all the capabilities that are referenced throughout one or more architectures – i.e. one C1 may provide the definitive list of capabilities for a number of logical and resource architectures.
The capabilities may be organised into specialisation hierarchies (taxonomies). Measures of effectiveness may be specified for each capability. Note that measures of effectiveness are inherited down a capability taxonomy.
- Identification of existing and required capabilities.
- Source for the derivation of cohesive sets of KURs.
- Providing reference capabilities for multiple architectures.
- Hierarchical (Connected Shapes).
- UML Class Diagram (with generalisation relationships and property definitions).
Detailed View Description
The C1 specifies a hierarchy of capabilities. A capability taxonomy persists over time (an architect may wish to specify historical, current or future capability) and may be referenced by multiple architectures. The capabilities specified in a C1 are extensively re-used in logical, service-oriented, and resource views; in this way the concept of capability is integral to any NAF architecture.
In NAF, a capability is a description of an ability to do something. In C1, the capabilities are only described in the abstract – i.e. C1 does not specify how a capability is to be implemented. A C1 is most commonly structured as a specialisation hierarchy of capabilities, with the most general at the root and most specific at the leaves. Capabilities may have measures of effectiveness – these measure categories are inherited by sub-capabilities:
C1 is a capability taxonomy view. C3 is the view that describes dependencies between the capabilities shown in the C1 taxonomy.
The capabilities in a C1 are related by specialisation relationships that assert one capability is a special case of another (e.g. ground-based ISTAR is a specialisation of ISTAR).
In NAF, Capabilities are ‘enduring’, that is they are intended to provide an enduring framework across the lifetime of one or more enterprises. This means that it is feasible to develop a capability taxonomy that will apply to all Enterprise Phases listed in a C2, and an C1 may even cover more than one logical / resource architecture.
Key Elements and Their Relationships
The data in an C1 can include:
- Capability (and specialisation relationships between Capabilities).
- Measure Category (for specifying Measures of Effectiveness relevant to Capabilities)
The detailed meta-model for C1 can be viewed here