C3 - Capability Dependencies

The C3 Capability Dependencies View describes dependencies between capabilities. It also defines logical composition of capabilities (i.e. capability clusters).

Concerns Addressed

• Capability Management.

Background

The C3 View is intended to provide a means of analysing the dependencies between capabilities and between capability clusters. The composition of capabilities (into clusters) is logical and the purpose of the clusters is to guide enterprise management.

Usage

• Identification of capability dependencies.
• Capability management (impact analysis for options, disposal etc.).

Representation

• Nested box diagram.
• UML Class diagram.
• UML Composite Structure diagram.
• SysML Structural diagram.

Detailed View Description

C3 describes the relationships between capabilities. It also defines logical groupings of capabilities. This contrasts with C1, Capability Taxonomy, which also deals with relationships between capabilities; but C1 only addresses specialisation relationships (i.e. capability taxonomy).

C3 is intended to provide a means of analysing the dependencies between capabilities and between capability clusters. In particular, it will highlight potential integration requirements and the interactions needed between acquisition projects in order to achieve the overall capability.

The recommended notation for C3 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 function n-squared diagram. The following four examples show the same C3 view presented in different ways.

Fig 3-7

Fig 3-8

Fig 3.9

Fig 3-10

Key Elements and Their Relationships

Fig

Meta-Model

The detailed meta-model and element list for C3, Capability Dependencies, is at paragraph 4.2.3.