Definition
This is the project definition step. This involves gathering the details; the existing systems, users, procedures, and other information and the detailed requirements of the solution. The deliverable for this step will be one or more documents defining the project. These may include a project definition report, the business case, a requirements document, a use case, a return on investment (ROI) statement, a functional specification, and an existing system analysis document.
The definition phase defines the project in detail, and involves detailing the current environment, the problem to be solved by the solution, and the detailed requirements for the solution.
The initial project definition will be based on the documentation that triggered this project, such as the IT Architecture, Security Architecture, RFP, or equivalent. These documents identify the business background, the business need for the solution, and, normally, the business and technical requirements for the solution.