This document discusses the key steps in system analysis and design: investigation, analysis, design, implementation, and maintenance. It outlines the main phases of analysis as fact finding, feasibility study, analysis, system design, implementation, testing, documentation, and evaluation. Fact finding involves understanding how the current system works through interviews, questionnaires, observation, and inspecting documents. The feasibility study determines if a problem can be solved effectively and produces a report on timelines and estimated costs. The analysis phase further examines the current system and identifies weaknesses through charts and diagrams to inform the system design.