1. Supercomputer

Systems development life cycle (SDLC) is the step-by-step process that organizations follow during systems analysis and design. The 6 steps are preliminary investigation followed by systems analysis, design, development, implementation, and maintenance.
1. The objective of preliminary investigation or scoping is to conduct a preliminary analysis, propose alternative solutions, describe costs and benefits, and submit a preliminary plan with recommendations.
2. The objective of systems analysis is to gather data, analyze the data, and write a report. Several tools are used to analyze the data. Modelling tools enable an analyst to present graphic representations of a system. Data flow diagrams (DFDs), for example, graphically show the flow of data through a system.
3. The objective of systems design is to do a preliminary design, which describes the general functional capabilities of a proposed information system; then do a detail design, which describes how the system will deliver the capabilities described in the preliminary design; and then to write a report. Tools used in the preliminary design are CASE tools and project management software. CASE (computer-aided software engineering) tools are programs that automate the various activities of the SDLC in several phases. Prototyping refers to using workstations, CASE tools, and other software applications to build working models of system components that can be quickly tested. A prototype is just such a limited working system developed to test out design concepts. Project management software consists of programs used to plan, schedule, and control the people, costs, and resources required to complete a project.
4. The objective of systems development is to develop or acquire the software, acquire the hardware, and then test the system. In considering what software to acquire, the systems analyst must make a make-or-buy decision decide whether to create a program or buy existing software.
5. Systems implementation consists of converting the hardware, software, and files to the new system and training the users. Conversion to the next system may be by direct implementation (stop the old, start the new), parallel implementation (operate both old and new concurrently for a while), phased implementation (phase in new system in stages), or pilot implementation (try out new system by some users).
6. Systems maintenance adjusts and improves the system by having system audits and periodic evaluations and by making changes based on new conditions.

By RamzeSSS