Change is inevitable. Your organization needs to be prepared for multiple changes on a project. To prepare yourself, you need a process and a Change Management matrix defined so all changes follow the same process. These changes can range from having very small impact to very large impact. Tracking the changes in a consistent manner will allow management to understand any potential risk on the project and put a plan in place to help mitigate that risk.
We have reviewed the contracts and contract changes; the next chapter will discuss the method and process for getting paid and for paying contractors.