1. System Development Life Cycle (SDLC)
Jason C. H. Chen, Ph.D.
Professor of MIS
School of Business Administration
Gonzaga University
Spokane, WA 99258

2. Systems Development Life Cycle (SDLC)
Four Phases in SDLC
Analysis
Define (Plan)
Requirements Analysis
Design
Logical Design (visual, conceptual)
Physical Design
Implementation
Coding
Testing
Conversion
Maintenance
Hardware/Software
People

3. Systems Development Life Cycle
Systems Investigation
(Definition) Product:
Feasibility Study
Understand the
Business
Problem or
Opportunity
Systems Analysis
Product:
Functional Requirements
Develop an
Information
System
Solution
Systems Design
Product:
System Specifications
Systems Implementation
Product:
Operational System
The traditional information systems development cycle is based upon the stages in the systems approach to problem solving, where each step is interdependent on the previous step:
Systems Investigation. This stage may begin with a formal information systems planning process to help sort out choices from many opportunities. Typically, due to the expense associated with information systems development this stage includes a cost/benefit analysis as part of a feasibility study.
Systems Analysis. This stage includes an analysis of the information needs of end users, the organizational environment, and any system currently used to develop the functional requirements of a new system.
Systems Design. This stage develops specifications for the hardware, software, people, network, and data resources of the system. The information products the system is expected to produce are also designated.
Systems Implementation. Here the organization develops or acquires the hardware and software needed to implement the system design. Testing of the system and training of people to operate and use the system are also part of this stage. Finally, the organization converts to the new system.
Systems Maintenance. In this stage, management uses a postimplementation review process to monitor, evaluate, and modify the system as needed.
Implement
the Information
System
Solution
Systems Maintenance
Product:
Improved System
2000 McGraw-Hill Companies

4. Four Phases in the Systems Development Life Cycle (SDLC) (Waterfall)
Analysis
[1]
[2]
[3]
[4]

6. Five Phases in the Systems Development Life Cycle (SDLC) (Waterfall)?
Analysis
[1]
[2]
[3]
[4]
[5]
Figure 12-9 Five Phases of the Systems Development Life Cycle (SDLC)