Systems Analysis and Design 9 th Edition Toolkit B CASE Tools By: Prof. Lili Saghafi

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 2

Toolkit Objectives Explain an integrated development environment Provide examples of CASE tool features Describe CASE tool trends, and how they relate to object-oriented analysis and agile methods 3

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

Overview of CASE Tools 5

CASE Tools History – Modern languages – non-procedural or event- driven – Object-oriented programming languages (OOPL) – Fourth-generation languages (4GLs) – Fourth-generation environment 6

Overview of CASE Tools The Marketplace for CASE Tools 7

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 8

CASE Terms and Concepts Individual Tools – Modeling tools – Documentation tools – Engineering tools Forward engineering Reverse engineering 9

CASE Terms and Concepts Individual Tools – Construction tools Application generator – code generator Screen generator – form painter Report generator – report writer Mock-up report 10

Integrated Development Environments Integrated development environment (IDE) Examples of Integrated Development Environments 11

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 12

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 13

CASE Tool Examples Visible Analyst – Visible Systems Corporation is an important player in the software development market – Also provides a full range of Help features, including the error message analysis screen 14

CASE Tool Examples Rational Software – IBM offers many systems development and modeling products, including a powerful tool called Rational System Architect – Stresses modeling and collaboration, and is a suite of tools that can align processes, information, and technologies 15

CASE Tool Trends New Products and Features – Offer more features and greater flexibility – Framework – Zachman Framework – Framework Manager 16

CASE Tool Trends New Products and Features – Another trend is the increasing use of integrated development environments – An IDE typically includes built-in tools such as real- time error detection, syntax hints, highlighted code, class browsers, and version control 17

CASE Tool Trends Method-Specific CASE Tools – Structured analysis – Object-oriented analysis and design (OOAD) – The most recent trend is the popularity of agile methods 18

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 19

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 20

Toolkit Summary Toolkit B complete 21