During business analysis, you define the business goals of a deployment project and state the business requirements that must be met to achieve those goals. When stating the business requirements, consider any business constraints that might affect the ability to achieve the business goal. Throughout the life cycle, you measure the success of your deployment planning, and ultimately your deployment solution, according to the analysis performed in the business analysis phase.
During the business analysis phase you create business requirements documents that you later use as inputs to the technical requirements phase.
For more information on the business analysis phase, refer to Chapter 2, Business Analysis