bannerc

Term

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Definition

When COTS, legacy/heritage software is reused, or heritage software is changed, the product is considered modified. The changes can include all or part of the software products and may involve additions, deletions, and specific alterations. An argument can be made that any alterations to the code and/or design of an off-the-shelf software component constitutes modification, but the common usage allows for some percentage of change before the off-the-shelf software is declared to be MOTS software. This may include the changes to the application shell and/or glueware to add or protect against certain features and not to the off-the-shelf software system code directly. See off-the-shelf. (Source: both NPR 7150.2A and NPR 7150.2B - Appendix A)

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