ACCG250 Lecture Notes - Lecture 9: Data Flow Diagram, Requirements Analysis, Deliverable

• School: Macquarie University
• Department: Accounting and Corporate Governance
• Course: ACCG250
• Professor: Mauricio Marrone

Document Summary

Systems development lifecycle represents a very structured and methodical way of doing development projects. Each of these stages has a predefined input and output. Outputs of one stage provide input for the next. Concerned with identifying any problems or opportunities with the current systems and identifying the feasibility of responding to these problems and opportunities. In assessing new opportunities we need to consider organisational fit. Problem identification: factors to consider when reviewing a systeem. Legal: do the systems comply with laws, rules and regulations. Understand what the current system does and how it operates. Methods to gain an understanding of the system: Find the technology to allow implementation of logical design. Imperative that designers and users concur on the design. Once design is signed off no further design changes should be permitted. Once the design has been approved the organisation must determine where it will source required hardware and software. Involves getting the system up and running within the organisation.