Chapter 20: Intro to Systems Development and Analysis (578-583) Flashcards
5 steps of Systems Development Life Cycle (SDLC)
- System Analysis
- Conceptual View
- Physical View
- Implementation and Conversion
- Operation and Maintainance
System Analysis
gather data about data needs, costs, technologies, etc.
Conceptual Design
gather system/user requirements
Physical Design
Concepts are translated into detailed specifications.
Implementation and Conversion
new hardware/software are installed and tested. Employees are hired and trained or existing employees relocated. Processing procedures are tested and modified. Standards and controls for the new system are established and system documentation is completed
Operation and Maintenance
continuously monitor and evaluate system
modify system to improve features and performance.
Management in SDLC
emphasizes the importance of involving users in the process, to provide support and encouragement for development projects, and to align systems with corporate strategies.
Information Systems Steering Committee
executive level that plans and oversees the information function. Consists of high level management, such a s the controller and system and user department management,
System analysts
study existing systems, design new ones, and prepare the specifications used by computer programmers. They interact with employees throughout the organization to bridge the gap between the user and the technology
Computer programmers
write programs using the specifications developed by the analysts. They also modify and maintain existing computer programs.
7 reasons why companies change their systems
- Changes in user or business needs
- Technological Changes
- Improved business processes
- Competitive Advantage
- Productivity Gains
- Systems Integration
- Systems Age and Need to be replaced
Managements role in SDLC
emphasize importance of involving users in the process, to provide support and encouragement for development projects, and to align systems with corporate strategies. Establishing system goals and objectives, selecting system department leadership and reviewing their performance, establishing policies for project selection and organizations structure and participating in important system decisions.
Accounts and Other Users role in SDLC
AIS users communicate their information needs to system developers, Project development team and steering committee members help manage system development.
Project development team role in SDLC
each team has a team of systems analysts and specialists managers, accountants, and users to guide its development. Team members plan each project, monitor it to ensure timely and cost-effective completion, make sure proper consideration is given to the human element, and communicate project status to top management and steering committee