Systems software, applications, and programming languages of which the source code is freely available for use and/or modification.

Match each of the key terms with the definition that best fits it.

A. Best-of-breed strategy B. Contract negotiation C. Cost-reimbursable contract D. Enterprise resource planning (ERP) system E. Evaluation criteria F. External acquisition G. Fixed-price contract H. Independent estimates I. IT services firm J. Make-or-buy analysis K. On-demand computing L. Open source software M. Packaged software producer N. Plan Procurement Management O. Procurement documents P. Procurement management plan Q. Request for proposal (RFP)
R. Requesting seller responses S. Screening system T. Seller rating system U. Statement of work (SOW)
V. Time-and-materials contract W. Turnkey system X. Utility computing Y. Weighting system