Water Fall essays

Water Fall essays System designing is not just about designing and developing a system, in order to undertake such a complex project comprising of analysts, programmers, testers and users, a project management approach needs to be determined. There are many approaches to the System Development Life Cycle (SDLC) which is defined as the overall process of developing information systems through a multi-step process through analysis, design, implementation and maintenance, models such as, waterfall, fountain, spiral, build and fix, rapid prototyping, incremental, and synchronize and stabilize. We will be adopting the waterfall model (see Figure 2) for the system that we are going to design. System usability will be considered during this process but methodologies of User Centred Design will be discussed later. The waterfall model is chosen because it include testing in almost every phase which will allows us to align and evaluate against users usability. Waterfall divides the project into well-defined sequential stages with intermediate milestones. The final system is not completed until all the phases are completed. 1) Project Planning and Feasibility Study Establishes a high-level view of the intended project and determines its goals. 2) Systems analysis and requirements Refines project goals into defined functions and operation of the intended application. Analyzes end-user information needs. 3) Systems design Describes desired features and operations in detail, including screen layouts, business rules, process diagrams, pseudo code and other documentation. 4) Implementation The real code is written here. 5) Integration and Testing - Brings all the pieces together into a special testing environment, then checks for errors, bugs and interoperability. 6) Acceptance, Installation and deployment - The final stage of initial development ...