Purpose:

Product or product component designs are developed.

Objective:

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Description:

Product or product component designs should provide the appropriate content not only for implementation, but also for other phases of the product lifecycle such as modification, re-procurement, maintenance, sustainment, and installation. The design documentation provides a reference to support mutual understanding of the design by relevant stakeholders and supports future changes to the design both during development and in subsequent phases of the product lifecycle. A complete design description is documented in a technical data package that includes a full range of features and parameters including form, fit, function, interface, manufacturing process characteristics, and other parameters. Established organizational or project design standards (e.g., checklists, templates, object frameworks) form the basis for achieving a high degree of definition and completeness in design documentation.

Entrance Criteria:

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Exit Criteria:

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Process and Procedures:

Tailoring Guidelines:

  • None

Process Verification Record(s):

  • Product architecture
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  • Product component design
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  • Technical Data Package
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  • Interface design specifications
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  • Interface control documents
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  • Interface specification criteria
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  • Rationale for selected interface design
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  • Criteria for design and product component reuse
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  • Make-or-buy analyses
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  • Guidelines for choosing COTS or SaaS product components
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Measure(s):

  • Establish and maintain criteria against which the design can be evaluated.
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  • Identify, develop, or acquire the design methods appropriate for the product.
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  • Ensure that the design adheres to applicable design standards and criteria.
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  • Ensure that the design adheres to allocated requirements.
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  • Document the design
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  • Determine the number of levels of design and the appropriate level of documentation for each design level.
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  • Determine the views to be used to document the architecture.
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  • Base detailed design descriptions on the allocated product component requirements, architecture, and higher level designs.
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  • Document the design in the technical data package.
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  • Document the key (i.e., significant effect on cost, schedule, or technical performance) decisions made or defined, including their rationale.
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  • Revise the technical data package as necessary.
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  • Define interface criteria.
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  • Identify interfaces associated with other product components.
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  • Identify interfaces associated with external items.
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  • Identify interfaces between product components and the product related lifecycle processes.
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  • Apply the criteria to the interface design alternatives.
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  • Document the selected interface designs and the rationale for the selection.
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  • Develop criteria for the reuse of product component designs.
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  • Analyze designs to determine if product components should be developed, reused, or purchased.
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  • Analyze implications for maintenance when considering purchased or non-developmental.
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References: