System Development

Key Ideas

·         Many failed systems were abandoned because analysts tried to build wonderful systems without understanding the organization.

·         The primarily goal is to create value for the organization.

·         The systems analyst is a key person analyzing the business, identifying opportunities for improvement, and designing information systems to implement these ideas.

·         It is important to understand and develop through practice the skills needed to successfully design and implement new information systems.

                                                                                                                           

THE SYSTEMS DEVELOPMENT LIFE CYCLE

Project Phases

·         Planning (Why build the system? How should the team go about building it?)

·         Analysis (Who uses system, what will it do, where and when will the system be used?)

·         Design (How will the system work?)

·         Implementation (System delivery)

Planning

·         Identifying business value

·         Analyze feasibility

·         Develop work plan

·         Staff the project

·         Control and direct project

Analysis

·         Analysis strategy

·         Gathering business requirements

·         Requirements definition use cases

·         Process modeling

·         Data modeling

Design

·         Design selection

·         Architecture design

·         Interface design

·         Data storage design

·         Program design

Implementation

·         Construction

-          Program building

-          Program and system testing

• Installation

-          Conversion strategy

-          Training plan

-          Support plan

Processes and Deliverables