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Cameo Systems Modeler, SysML, DoDAF

Michael Martines

I am curious about other's thoughts about using CSM for a MBSE acquisition program. Those who have considerable experience with building, reviewing, or submitting DoDAF products for reviews know that it's common to hear it called shelf-ware. The products were/are at times decent (some products better than others) for outsiders to review and explain the mission-context of a system. However, engineers in the program office find very little relevance for DoDAF products because all of their interest is basically inside the system that the DoDAF products generally treat as a black box or a rather translucent box (this is per DoDAF guidance). As you know, because of the focus on MBSE, programs are now trying to bring together those engineers and the DoDAF modelers to work within a single model or to integrate multiple models into a single modeling environment. 

How have you approached building DoDAF (UPDM) products and SysML products for engineers in a single CSM model? Have you simply decided to build all products using SysML or all products using UPDM? Have you created multiple models inside one CSM project? Have you created custom model libraries and profiles in a single SysML model to handle the DoDAF style diagrams?

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  • I am building a model (S&T) which links items like:requirements, systems, test events, source documents, higher level requirements, risk, functions,... I am also working/investigating on comparing baselines. I also have scripts to extract data to produce documents : SRD, P-spec, Test Evaluation Strategy. We are also able to produce views/table of various associations between elements. For example I can produce a Test Evaluation Matrix which shows all the attributes associated with the events. It's a very powerful and useful product for the test team. Once you have requirements in model you can quickly view linkages. My model is a combination of DoDAF and SysMl, dodaf for all of those required views, SysML to create profiles, matrix(s) and ...I've even mapped electrical schematics with attributes however I never found a use or need for this.
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  • I am building a model (S&T) which links items like:requirements, systems, test events, source documents, higher level requirements, risk, functions,... I am also working/investigating on comparing baselines. I also have scripts to extract data to produce documents : SRD, P-spec, Test Evaluation Strategy. We are also able to produce views/table of various associations between elements. For example I can produce a Test Evaluation Matrix which shows all the attributes associated with the events. It's a very powerful and useful product for the test team. Once you have requirements in model you can quickly view linkages. My model is a combination of DoDAF and SysMl, dodaf for all of those required views, SysML to create profiles, matrix(s) and ...I've even mapped electrical schematics with attributes however I never found a use or need for this.
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