System Analysis and Design
Systems Analysis and Design
Alan Dennis and Barbara Haley Wixom
John Wiley & Sons, Inc.
Slides by Fred Niederman
Copyright © 2000
John Wiley & Sons, Inc.
* All rights reserved. Reproduction or translation of this work beyond that permitted in Section 117 of the 1976 United States Copyright Act without the express written permission of the copyright owner is unlawful.
* Request for further information should be addressed to the Permissions Department, John Wiley & Sons, Inc.
* The purchaser may make back-up copies for his/her own use only and not for redistribution or resale.
* The Publisher assumes no responsibility for errors, omissions, or damages, caused by the use of these programs or from the use of the information contained herein.
Systems Analysis
Chapter 4
Key Definitions
* The As-Is system is the current system and may or may not be computerized
* The To-Be system is the new system that is based on updated requirements
Key Ideas
* The goal of the analysis phase is to truly understand the requirements of the new system and develop a system that addresses them -- or decide a new system isn’t needed.
* The line between systems analysis and systems design is very blurry.
THE ANALYSIS PROCESS
Analysis Across Areas
* Combines business and information technology
* Balance expertise of users and analysts
The SDLC Process
Three Steps of the Analysis Phase
* Understanding the “As-Is” system
* Identifying improvement opportunities
* Developing the “To-Be” system concept
Three Fundamental Analysis Strategies
* Business process automation (BPA)
* Business Process Improvement (BPI)
* Business Process Reengineering (BPR)
BUSINESS PROCESS AUTOMATION
Proposal Outline
* Table of contents
* Executive summary
* System request
* Work plan
* Analysis strategy
* Recommended system
* Feasibility analysis
* Process model
* Data Model
* Appendices
Business Process Automation
Identifying Improvements in As-Is Systems
Alan Dennis and Barbara Haley Wixom
John Wiley & Sons, Inc.
Slides by Fred Niederman
Copyright © 2000
John Wiley & Sons, Inc.
* All rights reserved. Reproduction or translation of this work beyond that permitted in Section 117 of the 1976 United States Copyright Act without the express written permission of the copyright owner is unlawful.
* Request for further information should be addressed to the Permissions Department, John Wiley & Sons, Inc.
* The purchaser may make back-up copies for his/her own use only and not for redistribution or resale.
* The Publisher assumes no responsibility for errors, omissions, or damages, caused by the use of these programs or from the use of the information contained herein.
Systems Analysis
Chapter 4
Key Definitions
* The As-Is system is the current system and may or may not be computerized
* The To-Be system is the new system that is based on updated requirements
Key Ideas
* The goal of the analysis phase is to truly understand the requirements of the new system and develop a system that addresses them -- or decide a new system isn’t needed.
* The line between systems analysis and systems design is very blurry.
THE ANALYSIS PROCESS
Analysis Across Areas
* Combines business and information technology
* Balance expertise of users and analysts
The SDLC Process
Three Steps of the Analysis Phase
* Understanding the “As-Is” system
* Identifying improvement opportunities
* Developing the “To-Be” system concept
Three Fundamental Analysis Strategies
* Business process automation (BPA)
* Business Process Improvement (BPI)
* Business Process Reengineering (BPR)
BUSINESS PROCESS AUTOMATION
Proposal Outline
* Table of contents
* Executive summary
* System request
* Work plan
* Analysis strategy
* Recommended system
* Feasibility analysis
* Process model
* Data Model
* Appendices
Business Process Automation
Identifying Improvements in As-Is Systems