NASA Systems Engineering Handbook by National Aeronautics & Space Administration

Author:National Aeronautics & Space Administration
Language: eng
Format: epub
Publisher: National Aeronautics and Space Administration
Published: 2017-06-09T20:17:23+00:00

6.2.2 Requirements Management Guidance

Refer to Section 6.2.2 in the NASA Expanded Guidance for Systems Engineering at https://nen.nasa.gov/web/se/doc-repository for additional guidance on:

the Requirements Management Plan and

requirements management tools.

6.3 Interface Management

The definition, management, and control of interfaces are crucial to successful programs or projects. Interface management is a process to assist in controlling product development when efforts are divided among parties (e.g., Government, contractors, geographically diverse technical teams, etc.) and/or to define and maintain compliance among the products that should interoperate.

The basic tasks that need to be established involve the management of internal and external interfaces of the various levels of products and operator tasks to support product integration. These basic tasks are as follows:

Define interfaces;

Identify the characteristics of the interfaces (physical, electrical, mechanical, human, etc.);

Ensure interface compatibility at all defined interfaces by using a process documented and approved by the project;

Strictly control all of the interface processes during design, construction, operation, etc.;

Identify lower level products to be assembled and integrated (from the Product Transition Process);

Identify assembly drawings or other documentation that show the complete configuration of the product being integrated, a parts list, and any assembly instructions (e.g., torque requirements for fasteners);

Identify end-product, design-definition-specified requirements (specifications), and configuration documentation for the applicable work breakdown structure model, including interface specifications, in the form appropriate to satisfy the product life cycle phase success criteria (from the Configuration Management Process); and

Identify product integration-enabling products (from existing resources or the Product Transition Process for enabling product realization).

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