1. System Design, Implementation and Review

2. Systems Design: Systems design is the process of defining the architecture, components, modules, interfaces, and data for a system to satisfy specified requirements

3. Logical Design Output design: types, format, content, frequency
Input design: types, format, content, frequency
Process design: calculations, comparisons, manipulations
File & database design: capabilities and organization
Telecommunications design: high-level network description
Procedures design: automated & manual

4. Physical Design Hardware design Software design Database design
Telecommunications design
Personnel design
Procedures and controls design
MSIS 110: Introduction to Computers; Instructor: S. Mathiyalakan

5. Systems Implementation

6. Systems Implementation

7. The Programming Life Cycle

8. Reasons for Maintenance
Changes in business processes
Requests from stakeholders, users, or managers
Errors in the program
Technical and hardware problems
Corporate mergers & acquisitions
Government regulations
Changes in the operating system or hardware

9. Systems Review

10. Types of Review Procedures
MSIS 110: Introduction to Computers; Instructor: S. Mathiyalakan

11. Factors to Consider During Systems Review
Mission
Goals
Hardware/software
Database
Telecommunications
IS personnel
Control
Training
Costs
Complexity
Reliability
Efficiency
Response time
Documentation

12. Summary
Systems design - preparing detailed design needs for a new system or modifying an existing system
Systems implementation – installing the system and making everything, including users, ready for its operation
Software - can be purchased from vendors or developed in-house - a decision termed the make-or-buy
Systems maintenance - involves checking, changing, and enhancing the system to make it more useful in obtaining user and organizational goals
Systems review - the process of analyzing systems to make sure that they are operating as intended