1. Computer-Aided Software Engineering
“Automating the process ...”
TCS2411 Software Engineering

2. TCS2411 Software Engineering
Lecture Objectives
To understand the role of automation in the software engineering process
To describe the different types of CASE tools
To discuss the importance of integration among the different CASE tools
TCS2411 Software Engineering

3. TCS2411 Software Engineering
What is CASE?
CAD/CAM - Computer-aided design & manufacturing
Automated support for software engineering process
Provides engineer with ability to automate manual activities and improve engineering insight and quality
Can be single tool or complete environment
TCS2411 Software Engineering

4. Building Blocks for CASE
CASE Tools
Integration Framework
Portability Services
Operating System
Hardware Platform
Environment Architecture
TCS2411 Software Engineering

5. TCS2411 Software Engineering
Taxonomy of CASE Tools
Business Systems Planning
Information Engineering Tools
Process Modeling and Management Tools
Project Management
Project Planning Tools
Risk Analysis Tools
Project Management Tools
Requirements Tracing Tools
Metrics and Management Tools
TCS2411 Software Engineering

6. Taxonomy of CASE Tools (Continued)
Support Tools
Documentation Tools
System Software Tools
Quality Assurance Tools
Database Management Tools
Software Configuration Management Tools
Analysis and Design Tools
PRO/SIM Tools
Interface Design and Development Tools
Prototyping Tools
TCS2411 Software Engineering

7. Taxonomy of CASE Tools (Continued)
Programming Tools
Integration and Testing Tools
Static Analysis Tools
Dynamic Analysis Tools
Test Management Tools
Client/Server Testing Tools
Maintenance Tools
Reengineering Tools
TCS2411 Software Engineering

8. TCS2411 Software Engineering
Integration Options
Individual Tool (Point Solution)
Data Exchange
Tool Bridges & Partnerships
Consortium & Standards
Single Source
IPSE
TCS2411 Software Engineering

9. Integration Options Diagram
Point Solution
Data Exchange
Tool Bridges &
Partnerships
Consortium &
Standards
Single Source
IPSE
TCS2411 Software Engineering

10. Integrated CASE (I-CASE)
Integration of a variety of tools and information that enables closure of communication among tools, between people and across the software process
Combination of CASE tools in an environment where interface mechanisms are standardised
TCS2411 Software Engineering

11. TCS2411 Software Engineering
I-CASE Features
All tools sharing SE information
Change of one item tracked to other items
Provide version control and configuration management
Direct access to any tool
Automated support for integration of tools & data into standard WBS
TCS2411 Software Engineering

12. I-CASE Features (Continued)
Consistent look & feel for each tool
Support communication among engineers
Collect management & technical metrics
TCS2411 Software Engineering

13. TCS2411 Software Engineering
Benefits of I-CASE
Smooth transfer of information from a tool to another and one SE step to the next
Reduction in effort to perform umbrella activities such as SCM, SQA and document production
increase in project control
Improved coordination among staff members in a large software project
TCS2411 Software Engineering

14. Integration Framework Diagram
User interface layer
- interface tool kit
- presentation protocol
Tools management services
CASE
tool
Tools layer
Object management layer
- integration services
- configuration management services
Shared repository layer
- CASE database
- access control functions
TCS2411 Software Engineering

15. Integration Framework
User interface layer
incorporates standardised interface toolkit with common presentation protocol
human-computer interface, display objects, guidelines for same look & feel
Tools layer
tools management - control behaviour of tools
coordination of tasks, e.g. multitasking
TCS2411 Software Engineering

16. Integration Framework (Continued)
Object management layer
configuration management functions
integration services - standard modules that couple tools with repository
Shared repository layer
CASE database
access control functions - enable object management layer interact with database
TCS2411 Software Engineering

17. TCS2411 Software Engineering
Process Integration
carry out
support
CASE
Tools
Activities
Users
calls
advises
generate
Process
Interpreter
Process
model
Results
TCS2411 Software Engineering

18. TCS2411 Software Engineering
CASE Workbenches
Set of tools which supports a particular phase of the software process e.g. design
Advantage - tools can work together to provide more comprehensive support
Common services can be implemented and called by all the tools
Integration possible through shared files, shared repository, or shared data structures
TCS2411 Software Engineering

19. Programming workbenches
Language compiler
Structured editor
Linker
Loader
Cross-referencer
Prettyprinter
Static & Dynamic analyser
Interactive debugger
TCS2411 Software Engineering

20. Analysis and Design Workbenches
Diagram editors
Design analysis and checking tools
Repository
Repository query language
Report definition and generation tools
Forms definition
Import/export facilities
Code generators
TCS2411 Software Engineering

21. TCS2411 Software Engineering
Testing workbenches
Test manager
Test data generator
Oracle - generates predicted results
File comparator
Report generator
Dynamic analyser
Simulator
TCS2411 Software Engineering

22. TCS2411 Software Engineering
Examples of CASE Tools
With Class - object-oriented design and code generation
Eiffelbench - object-oriented programming and debugging
Oracle Designer/ integrated CASE environment
TCS2411 Software Engineering

23. TCS2411 Software Engineering
With Class
Design objects - identifying attributes and operations
Specifying relationships
Diagramming for various methodologies
Code generation for various languages
TCS2411 Software Engineering

24. TCS2411 Software Engineering
Eiffelbench
Based on Eiffel language (an object-oriented language)
For development and debugging of program
Consists of tools such as:
Project Tool
System Tool
Class Tool
Feature Tool
Object Tool
TCS2411 Software Engineering

25. TCS2411 Software Engineering
Oracle Designer/2000
Repository Administration
Process Modeler
Entity Relationship Diagrammer
Function Hierarchy Diagrammer
Dataflow Diagrammer
System Designer
Utilities
TCS2411 Software Engineering

26. TCS2411 Software Engineering
References
“Software Engineering: A Practitioner’s Approach” 5th Ed. by Roger S. Pressman, Mc-Graw-Hill, 2001
“Software Engineering” by Ian Sommerville, Addison-Wesley, 2001
TCS2411 Software Engineering