Automated Tools For System Analysis and Design

1. For System Analysis and Design
Automated Tools

2. 01
Amit Kundu
161-15-7149
MD. Khairul Alam Ovy
161-15-6979
Mariea Akter
161-15-6711
MD. Shakil Mahmud
152-15-5573
Group Members
02 03 04

3. PART 1
Amit Kundu 161-15-7149
Introduction

4. Computer-aided Software Engineering
CASE
• Automated software tools used by systems
analysts to develop information systems
• Used to support or automate activities
throughout the systems development life
cycle (SDLC)
• Increase productivity
• Improve overall quality of systems

5. CASE Supports

6. • Reverse engineering
• Reengineering
Categories of CASE
Products

7. PART 2
Khairul Alam Ovy 161-15-6979
The Use of CASE in Organizations

8. 1. Improve quality of systems developed.
2. Increase speed of development and design.
3. improve testing process through automated
checking .
4. Improve quality and completeness of
documentation.

9. 5. Improve project management.
6. Simply program maintenance .
7. Promote reusability.
8. Improve software portability.

10. • Majority of organizations adopt CASE to improve speed and quality of systems development projects.
• Widespread deployment has been slower than expected.
CASE and System Quality

11. Several factors that inhibit widespread deployment
Cost
Between $5,000 and $15,000 per year to provide CASE tools
to one systems analyst
Return on Investment
Biggest benefits of CASE come in late stages of SDLC
Productivity Bottlenecks
Difficulty in providing tools for all staes of SDLC
Cont..

12. Functionality is increasing.
• Cost is decreasing.
Reverse Engineering Tools
Automated tools that read
program source code as input and create
graphical and textual representations of
program design-level information.
The Outlook for CASE

13. PART 3
Mariea Akter
161-15-6711

14. • Upper CASE
• Lower CASE
• Cross life-cycle CASE
Components of CASE

15. Types of CASE tools
Components of CASE
• Diagramming tools
• Computer display and report generators
• Analysis tools
• A central repository
• Documentation generators
• Code generators

16. CASE Diagramming Tools
• Several types of diagrams :
Data Flow Diagrams (DFD)
Functional Hierarchy Diagrams
Entity-Relationship Diagrams

17. CASE Form & Report Generator Tools
• Two Purposes:
1) Create, modify and test prototypes of
computer display forms and reports
2)Identify which data items to display or
collect for each form or report

18. CASE Analysis Tools

19. 4
Md. Shakil Mahmud 152-15-5573
Difference between CASE-Based Systems
Development and Traditional Systems
Development

20. Weaknesses of Traditional Systems
Development
No support for
integration of
documents
Documentation after
coding
Out-of-date
documentation

21. Traditional Systems Development vs
CASE-Based Systems Development
Emphasis Type Coding
MaintainTaskDocumentation

22. YOU
THANK