System Views (SV) [Physical, Specification or Solution Views]
SV-3 Resource Interaction Matrix v1.2
The Resource Interaction Matrix provides a tabular summary of the resource interactions specified in the SV-1 for the Architecture.
This view was previously known as the System-System Matrix; the name change reflects the expanded scope of MODAF modelling in the solution space.
Background:
An SV-3 Product allows a quick overview of all the resource interactions specified in one or more SV-1 diagrams. The matrix format supports a rapid assessment of potential commonalities and redundancies (or, if fault-tolerance is desired, the lack of redundancies).
The SV-3 can be organised in a number of ways to emphasise the association of groups of system pairs in context with the architecture’s purpose.
Usage:
- Summarising resource interactions
- Interface (ICD) management
- Comparing interoperability characteristics of solution options
Data objects:
The data in an SV-3 can include:
- Resource Types
- Resource Interactions
Relationships Between Key Data Objects (Simplified from M3)
Representation:
- Tabulation
- N-Squared Table
Detailed Product Description:
SV-1 concentrates on Resources and their interactions, and these are summarised in an SV-3. SV-3 can be a useful tool for managing the evolution of solutions and infrastructures, the insertion of new technologies/functionality, and the redistribution of systems and processes in context with evolving operational requirements.
Depending upon the purpose of the architecture, there could be several SV-3 View Products. The suite of SV-3 View Products can be organised in a number of ways (e.g., by domain, by operational mission phase, by solution option) to emphasise the association of groups of resource pairs in context with the Architecture purpose.
SV-3 is a summary description of the resource interactions identified in SV-1. SV-3 is similar to an N2-type matrix, where the resources are listed in the rows and columns of the matrix, and each cell indicates an interaction between resources if one exists.
Example SV-3
Many types of interaction information can be presented in the cells of SV-3. The interactions can be represented using a number of different symbols and/or colour codes that depict different characteristics.
There are many types of information that can be presented using an SV-3. The resource interactions can be represented using different symbols and/or colour coding that depicts different interaction characteristics, for example:
- status (e.g. existing, planned, potential, de-activated)
- key interfaces
- category (e.g. command and control, intelligence, personnel, logistics)
- classification level (e.g. RESTRICTED, CONFIDENTIAL, SECRET, TOP SECRET)
- communication means (e.g. RLI, SLI).
MODAF does not specify the symbols to be used, but if it is used, the SV-3 table must provide a key to the symbols.
Example SV-3 (showing interface classification)
Note that each resource pair has two intersections mirrored in the bottom-left and top-right triangles. Only one pairing is normally required however it is possible to use the mirrored pair to reflect either a bi-directional interface or the current (as-is) and mature (to-be) time periods. If this is done, it is important to make this clear on the matrix.
Page version 1.2, dated 20th June 2008