AP233 Module Sets

The following identifies and describes the Module Sets for AP233, the STEP Systems Engineering Project.

Note: De-emphasized items are modules that AP233 may re-use from other STEP projects and/or
develop the module set in cooperation with other STEP projects.
Italicized items represent new addtions to the Module Set list from the previous version.

Draft

• Requirements - a data model that describes requirements as text strings with traceability, allocation, weighting and risk identified with each requirement [Text-based Requirements ( TBR ) ] and that describes requirements as structured and quantified formalisms that maybe decomposed from text-based requirements; can include tables, spreadsheets, graphs, charts, pictures and equations [ Property-based Requirements (PBR) ].

• Structural Models - a data model that describes how a system is built; defines the static relationships among  the subsystems, components, or parts that actually constitute the system; describes what is designed, built and maintained; contains specifications for design, manufacture, and maintenance and information about actual manufactured parts and their verification and maintenance.

• Behavioral Models - a data model that describes how a system performs; includes functions, inputs, outputs and control operators which define the ordering of functions; the model describes Functional Flow Block Diagrams, Finite State Machines, Causal Chain, Data Flow Diagrams and Sequence Diagrams.
• • Function Based -
  • State Based -

• Validation and Verification Model - a data model that describes the plan, infrastructure and status of validation and verification processes.

• Allocation Model - a data model that describes structures necessary to allocate requirements, schedule, costs, risks and other functions associated with a body of work.

• Risk Analysis - a data model that identifies risk(s), describes their status, specifies relationships, likelihood, consequence, impact approach strategy and contingencies. [ may collaborate/reuse PLCS Risk Model ]

• Cost Models - a data model that describes direct, indirect, fixed, variable, material, administrative, finance, and contingency costs; provides linkage to system product structure(s) [e.g. Aerospace cost model ]

• Data Representation - "a consistent set of “presentation mechanisms” and “advanced schematics product model definition”, which is designed to present the computer sensible model data (defined in representation model space) onto a human understandable schematic diagram (presentation space), conforming to conventional and/or future draughting standards" [ from Intelligent Sematics PWI RDD ] [ may include features from AP221 and AP212 ]

• Scheduling - a data model that identifies activities, dependencies, durations and milestones associated with products described in the WBS; includes WorkFlow Diagrams, Network Schedules, Gantt Charts and Resource Leveling. [ work with PLCS ]

• Work Breakdown Structure - a data model that represents the structure used to represent the pieces of work necessary to complete a project.  [ work with PLCS ]
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• PDM - a data model that extends the STEP PDM Schema and PDM Modules to electro-mechanical, system engineering, product life-cycle and other non-physical domains.  [ work with PLCS and PDM ]

• • Change Management - a data model that describes, evaluates, tracks and traces issues that are instantiated as engineering and product change objects.. . . e.g. ECOs, ECRs, ECIs, etc. [ PLCS ]
• Security - a data model that describes project, organization, country and user defined security levels as well as user authentication and intellectual property.  [ work with PLCS and PDM ]
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• Organizational Structure - a data model that provides relationships, functional roles, skill qualification and documentation that defines an organizational structure.  [ work with PLCS ]

• AP Interface Models - a data model that describes the interfaces between domain specific data models such as mechanical, electronic, structural analysis, thermal analysis, manufacturing, etc. [ work with other STEP AP groups ]

• Measurement - a data model that describes the information assoicated with the development process and its control and optimization [ refer to Measurement WG Document ]