23.1 Introduction23.1.1 Definitions23.1.2 Advantages and Disadvantages of Commercial and NDI Approaches23.1.3 COTS and NDI Operating Environments
23.2 Market Investigation and Procurement
23.3 Cots and NDI Testing23.3.1 General Considerations23.3.2 Testing Before Program Initiation23.3.3 Testing After Program Initiation23.3.4 Special Considerations
23.4 Resources and Funding
23.5 Summary
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