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1. Requirements
6.3.3 The Engineering Technical Authority(s) for this NPR shall consider the following information when assessing waivers and deviations from requirements in this NPR:
a. The NASA software inventory data on the project.
b. The classification of systems and subsystems containing software, as defined in Appendix E.
c. Applicable Center-level software directives that meet the intent of this NPR.
d. Applicable contractor and subcontractor software policies and procedures that meet the intent of this NPR.
e. Potential impacts to NASA missions.
f. Potential impacts to health, medical concerns, or safety.
1.1 Notes
NPR 7150.2, NASA Software Engineering Requirements, does not include any notes for this requirement.
1.2 Applicability Across Classes
This requirement applies to all classes and safety criticalities.
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2. RationaleNPR 7150.2 contains the basic set of requirements for software developed by or for the agency. Any request for a "deviation" (documented authorization releasing a program or project from meeting a requirement before the requirement is put under configuration control at the level the requirement will be implemented) or a "waiver" (documented authorization intentionally releasing a program or project from meeting a requirement after the requirement is put under configuration control at the level the requirement will be implemented) from a particular requirement is made to the appropriate level and type of Technical Authority (TA) as listed in Appendix D in NPR 7150.2. When assessing the requests, the designated TA considers a number of relevant factors in deliberation. It is not uncommon for a waiver/deviation to require approval from TAs from two different organizations, e.g., Engineering TA (ETA) as well as Safety & Mission Assurance TA. The factors listed in parts a - f of this requirement support a responsible evaluation of the waiver/deviation request. |
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3. Guidance
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If the project or software lead engineer submits a deviation or waiver request against any of the NPR requirements, the following items are among those considered by the ETA when assessing the deviation or waiver request.
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The ETA who is assessing the deviation or waiver request also considers the interactions between the impacts determined above and those found by others considering the following areas:
- Impacts to health and safety, e.g., medical TA.
- Results of FMEAs (Failure Mode Effects Analysis)
- Findings in Hazard Reports.
- Other risk evaluations, e.g., SMA (Safety and Mission Assurance) TA (Technical Authority))
- Overall considerations for mission success.
The ETA's (Engineering Technical Authority) considerations include the interests of systems stakeholders, support organization functions, and other interested parties.
Information and results for deviation and waiver request activities are recorded and tracked in the project's configuration management system. Information on configuration management systems is available throughout the NASA literature. This documentation typically includes request procedures (see SWE-113), configuration control techniques, general instructions for evaluating impacts, and guidelines for completing the necessary forms. Project development activities typically draw upon these resources to develop project-specific documentation. The request packages are typically processed through management chains, through project control boards, and to higher administrative and management levels, e.g., the Headquarters' OCE, when appropriate.
Additional guidance on deviations and waivers related to contracts may be found in the following related topic in this Handbook: Topic 7.4 - Flow Down of NPR Requirements to Contracts and to Other Centers in Multi-Center Projects.
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4. Small Projects
This requirement applies to all projects regardless of size.
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5. Resources
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6. Lessons Learned
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