1. Toolkit 2

2. Toolkit Objectives
Explain CASE tools and the concept of a CASE environment
Trace the history of CASE tools and their role in a fourth-generation environment
Define CASE terms and concepts, including a repository, modeling tools, documentation tools, engineering tools, and construction tools 3

3. Toolkit Objectives Explain an integrated development environment
Provide examples of CASE tools features
Describe future trends for CASE tools, including new developments and the emerging role of object-oriented analysis and design 3

4. Introduction
Computer-aided systems engineering (CASE), also called computer-aided software engineering, is a technique that uses powerful software, called CASE tools
In addition, you will learn about integrated software development environments 4

5. Overview of CASE Tools
Case tools can reduce costs, speed up development, and provide comprehensive documentation that can be used for future maintenance or enhancements
CASE Environment
CASE Tools History
As early as the 1960s
Forty years ago – procedural languages

6. Overview of CASE Tools

7. Overview of CASE Tools CASE Tools History
Modern languages – non-procedural or event-driven
Object-oriented programming languages (OOPL)
Fourth-generation languages (4GLs)
Fourth-generation environment

8. Overview of CASE Tools The Marketplace for CASE Tools
Includes a wide variety of vendors and products, and no one tool dominates the market
Express Editions
VisioModeler
Object-role modeling (ORM)

9. Overview of CASE Tools
The Marketplace for CASE Tools

10. CASE Terms and Concepts
A typical CASE tool is actually a set of individual tools that share a repository of information
Repository
When you define a data element in the repository, you can assign a data type and format, a range of acceptable values, and one or more aliases
Alias

11. CASE Terms and Concepts
Repository

12. CASE Terms and Concepts
Individual Tools
Modeling tools
Documentation tools
Engineering tools
Forward engineering
Reverse engineering

13. CASE Terms and Concepts
Individual Tools
Construction tools
Application generator – code generator
Screen generator – form painter
Report generator – report writer
Mock-up report

14. Integrated Development Environments
Integrated development environment (IDE)
Examples of Integrated Development Environments
Oracle Designer
Microsoft’s Visual Studio 2005

15. Integrated Development Environments
Pros and Cons of Integrated Development Tools
Is highly effective because it is an integral part of the vendor’s software package
The only possible disadvantage is that each IDE is different and requires a learning curve and skills that might or might not be readily transferable
CASE tools can be used in any development environment

16. CASE Tool Examples
You can choose from dozens of vendors and CASE tools that offer a wide range of functions
Three leading CASE tool suppliers: Visible Systems Corporation, Telelogic Software, and Rational Software

17. CASE Tool Examples Visible Analyst
Visible Systems Corporation is an important player in the software development market
Can generate many types of models and diagrams

18. CASE Tool Examples System Architect
Telelogic states that its product is the first fully integrated modeling tool to unify the enterprise with complete business and systems information management
Offers numerous diagrams and definitions
Also offers extensive tutorials

19. CASE Tool Examples Rational Software
IBM’s Rational Software offers a wide range of systems development and modeling products
Rational Software Architect
Rational Edge

20. Future Trends
Will consist of cross-platform tools that are capable of working with data and business processes both within the enterprise and from outside customers and suppliers
Will undoubtedly be planned, constructed, and maintained with a new generation of CASE tools

21. Future Trends New Features Framework Manager
Lines between traditional CASE tools and other modeling tools continue to blur
Microsoft Visio
Another trend is represented by Microsoft’s Visual Studio 2005

22. Future Trends The Emerging Role of Object-Oriented Analysis and Design
Structured analysis
Systems development life cycle (SDLC)
Object-oriented analysis and design (OOAD) is gaining popularity
Features of an O-O approach include modular design and reusable code that easily can be combined and reassembled into new components

23. Toolkit Summary
CASE tools are software programs that system developers use to help them design and construct information systems
A repository is a database that serves as a central storage location for all information about the system being developed
An integrated set of CASE tools can be used to model, document, engineer, and construct the information system 49

24. Toolkit Summary
Forward engineering means translating business processes and functions into applications
A CASE tool can handle many program development tasks
Two trends seem clear: CASE tool vendors will continue to include powerful new features, and the popularity of object-oriented tools will continue to grow 49

25. Toolkit Summary
Toolkit 2 complete 49