Systems Analysis is the process of analyzing an organization with the ultimate objective of modifying and improving it. It is a way of solving problems existing in organizations. Structured Analysis, with the aid of visual capabilities, is the most commonly applied technique of implementing systems analysis. The two major components of structured analysis are Data Flow Diagrams(DFDs) and Data Dictionary. Wide-spread usage of Computer-Aided Software Engineering(CASE) tools that support systems analysis and design made the structured analysis process easier to manage and control. This study aims to apply structured analysis methodology to a Turkish company that operates in the information technology industry. Context diagram which is level 0 DFD is developed initially. Then the level 1 and level 2 DFDs are produced. The DFDs display the processes of each department and data flow between, in and out of departments. Each process that exists in the level 2 DFDs is explained and the data dictionary is provided in the appendices. The study concludes with a summary of recommendations that can be implemented for the improvement of the organization work flow.