The implementation of IT sourcing is a long and complex process that requires a lot of anticipation before the actual start of the agreement (one year to a year and a half in some cases). The goal of cost reduction is often taken into account, but the approach must predict the potential change of technologies that will not fail to occur during the term of the contract.

When we talk about outsourcing in the context of software development, it seems necessary to define a unit to measure performance, objectify costs, or quantify the resources expected from the supplier. Function Points help meet this goal.

This article aims to present an outsourcing approach for software application development and maintenance activities based on Function Points.

We also refer to some of the good practices provided the Carnegie Mellon eSCM model, in the form of: Gov02″ for good practice # 2 of the Governance activity.