What recommendations do you have regarding the responsibility of a governing body to approve/disapprove the purchasing of a new product?

Assess the governance and decision making processes necessary for making decisions related to the assessment, evaluation, return on investment analysis, and eventual purchasing of a new HIT product for a healthcare organization.

What recommendations do you have regarding the responsibility of a governing body to approve/disapprove the purchasing of a new product? As always you should be writing in the third person point of view.