This unit introduces the techniques, tools, and methods used by business analysts in the analysis and design stages of systems development. It aims to develop analytical skills for Systems Development Life Cycle (SDLC) including problem identification, feasibility analysis, systems requirements analysis, data modelling, and design models. Unified Modelling Language (UML) is explored, and different analysis and design techniques are examined such as structured and object-oriented design methods and tools. Students also examine the main principles and methods used in the design phase such as input and output design, user interface design, and software architecture.