Multi-criteria decision analysis is one of the tools and techniques for the PMI process to acquire project team. Multiple factors are organized, possibly in a decision matrix, in order to evaluate the options. The various factors can be weighted to score the choices or a more qualitative evaluation can be made.
When used as a technique for acquiring the project team, some of the selection criteria suggested in the PMBOK are availability, cost, experience, ability, knowledge, skills, attitude, and international factors.
Multi-criteria decision analysis is described in section 184.108.40.206 of the PMBOK, 5th edition. While it is only listed explicitly as a technique for one process (acquire project team), it is also listed as one of the group creativity techniques (5th ed., section 220.127.116.11) for collect requirements.