DoDAF Viewpoints and Models
Services Viewpoint
SvcV-3a: Systems-Services Matrix
A SvcV-3a enables a quick overview of all the system-to-service resource interactions specified in one or more SvcV-1 Services Context Description models. The SvcV-3a provides a tabular summary of the system and services interactions specified in the SvcV-1 Services Context Description for the Architectural Description. This model can be useful in support existing systems that are transitioning to provide services. The matrix format supports a rapid assessment of potential commonalities and redundancies (or, if fault-tolerance is desired, the lack of redundancies).
The SvcV-3a can be organized in a number of ways to emphasize the association of system-to-service interactions in context with the architecture's purpose.
The intended usage of the SvcV-3a includes:
- Summarizing system and service resource interactions.
- Interface management.
- Comparing interoperability characteristics of solution options.
Detailed Description:
The SvcV-1 concentrates on Service resources and their interactions, and these are summarized in a SvcV-3a or SvcV-3b. The SvcV-3a DoDAF-described Model can be a useful tool for managing the evolution of solutions and infrastructures, the insertion of new technologies and functionality, and the redistribution of Systems and Services and activities in context with evolving operational requirements.
Depending upon the purpose of the architecture, there could be several SvcV-3a DoDAF-described Models. The suite of SvcV-3a models can be organized in a number of ways (e.g., by domain, by operational mission phase, by solution option) to emphasize the association of groups of resource pairs in context with the Architectural Description's purpose.
The SvcV-3a is generally presented as a matrix, where the System and Services resources are listed in the rows and columns of the matrix, and each cell indicates an interaction between Systems and Services if one exists. Many types of interaction information can be presented in the cells of a SvcV-3a. The resource interactions can be represented using different symbols and/or color 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., Rim Loop Interface, Scalable Loop Interface).
DoDAF does not specify the symbols to be used. If symbols are used, a key for the symbols is needed.
SvcV-1 Services Context Description
SvcV-2 Services Resource Flow Description
SvcV-3a Systems-Services Matrix
SvcV-3b Services-Services Matrix
SvcV-4 Services Functionality Description
SvcV-5 Operational Activity to Services Traceability Matrix
SvcV-6 Services Resource Flow Matrix
SvcV-7 Services Measures Matrix
SvcV-8 Services Evolution Description
SvcV-9 Services Technology & Skills Forecast
SvcV-10abc Introduction to SvcV-10a, SvcV-10b and SvcV-10c
SvcV-10a Services Rules Model
SvcV-10b Services State Transition Description
SvcV-10c Services Event-Trace Description