1. Requirements Mapping and Compliance Matrix

1.1 The Software Classification Spreadsheet

To download the Software Classification Spreadsheet ^PAT-028, please click the image below. The spreadsheet contains the full matrix from NPR7150.2D as well as a customized matrix for each of the classes, A through F. 

1.2 Rationale

The rationale for the requirements is contained in the NASA-HDBK-2203. Programs/Projects may substitute a matrix that documents their mapping with their particular Center's implementation of NPR 7150.2 ⁰⁸³, if applicable. See NASA-HDBK-2203 for requirements mapping matrices organized by class, tailoring field for each requirement, tailoring rationale, and approval signature lines.

The Compliance Matrix documents the program/project's mappings or intent to comply with the requirements of this NPR or justification for tailoring. The matrix lists:

1. The section reference.
2. The unique requirement identifier.
3. The NPR 7150.2 requirement statement.
4. The Authority Level responsible for assessing a project’s requirements mapping matrices and any requested tailoring from requirements in this NPR. The CIO, or the designee, has institutional authority on all Class F software projects and has joint responsibility on the cybersecurity requirements in section 3.11.
5. The applicability of the requirements in this NPR to specific systems and subsystems within the Agency’s investment areas, programs, and projects is determined through the use of the NASA-wide definition of software classes.

Requirements relating to completing a Compliance Matrix include: 

• SWE-020 - Software Classification
• SWE-021 - Transition to a Higher Class
• SWE-121 - Document Tailored Requirements
• SWE-125 - Requirements Compliance Matrix
• SWE-126 - Tailoring Considerations
• SWE-140 - Comply with Requirements
• SWE-176 - Software Records
• SWE-205 - Determination of Safety-Critical Software

See also Topic 7.02 - Classification and Safety-Criticality, 7.13 - Transitioning to a Higher Class. 

1.3 Tailoring Guidance

Use the following guidance, also included in the matrix, to interpret the contents of the compliance matrix included in this topic:

X - Indicates an invoked requirement by this NPR consistent with Software Classification (See SWE-139 - Shall Statements).  May be tailored with Technical Authority approval (NPR 7150.2, Chapter 2.2).

Blank - Optional/Not invoked by NPR 7150.2.

Center - Center Director or the Center Director's designated Engineering Technical Authority or Center Director's designated Safety and Mission Assurance Technical Authority.

CIO - The OCIO, or the designee Center CIO, has institutional authority on all Class F software projects and has joint responsibility on the cybersecurity requirements in section 3.11 per the direction in the Requirements Mapping Matrix.

Each requirement marked 'X' for the project's software classification(s) should be addressed in the Requirements Mapping Matrix. All requirements can be tailored per the guidance in this directive. Requirements that are not applicable to a given project, such as the IV&V requirements, should be tailored out in the Requirements Mapping Matrix with justification.

1.4 Applicability Across Classes

Each requirement in this Handbook also includes a graphical representation of its compliance matrix data:

Key:    - Applicable | - Not Applicable

1.5 Additional Guidance

Links to Additional Guidance materials for this subject have been compiled in the Relevant Links table. Click here to see the Additional Guidance in the Resources tab.

2. Resources

2.1 References

• (SWEREF-083)
  NPR 7150.2 NASA Software Engineering Requirements,
  NPR 7150.2D, Effective Date: March 08, 2022, Expiration Date: March 08, 2027 https://nodis3.gsfc.nasa.gov/displayDir.cfm?t=NPR&c=7150&s=2D Contains link to full text copy in PDF format. Search for "SWEREF-083" for links to old NPR7150.2 copies.
• (SWEREF-257)
  NASA Engineering and Program/Project Management Policy,
  NPD 7120.4E, NASA Office of the Chief Engineer, Effective Date: June 26, 2017, Expiration Date: June 26, 2022
• (SWEREF-284)
  NPR 7150.2D Compliance Matrices by Class Templates. SWEHB Topic 7.16
  This topic contains spreadsheets for each class of software. For older versions of SWEHB, see SWE-125 and Topic 7.16 in the appropriate version.

2.2 Tools

2.3 Additional Guidance

Additional guidance related to this requirement may be found in the following materials in this Handbook:

2.4 Center Process Asset Libraries

See the following link(s) in SPAN for process assets from contributing Centers (NASA Only). 

2.6 Process Asset Templates