Systems planning: begins with a systems request (describes problems). The main purpose of this phase is to perform a preliminary investigation which will then perform a feasibility studies.

Systems analysis: the purpose is to build a logical model of the new system. The first step is requirements engineering and afterwards create a system requirements document.

Systems design: this phase is meant to create a physical model that satisfies all documented requirements for the system. A system design specification is presented to management for review and approval.

Systems implementation: new system is constructed. Final preparations include converting data to the new system, training users and performing the transition.

Systems security and support: IT staff maintains, enhances and protects the system.

Review: Introduction to Systems Analysis and Design