Information Technology (IT) is strategic for organization management (Stair & Reynolds, 2005), although, many companies lack IT governance and planning, skilled people, defined and institutionalized methods and procedures, internal controls and indicators, and structures for agreement service levels and information security, legality, and economy. In this scenario, a minimum organization and control in the use of resources is needed to boost technical and administrative efficiency, with a focus on IT governance. An Information Technology Strategic Plan (ITSP) aims at discovering the resources and IT in an organization, to direct the technological and information architecture to its strategic objectives. The Brazilian Government issued a Normative Instruction (NI04) for public organizations to develop IT Strategic Plans so that they can purchase products and services. In order to help organizations develop, control and manage their ITSPs, a model was created that defines a set of auxiliary steps in the construction of the ITSP. Throughout this article we present an ITSP development and management model, its evaluation, and our conclusions.