1. Define CASE, CASE tools, and a CASE environment. CASE stands for Computer-Aided Systems Engineering and is a technique that uses powerful software to help system developers design and construct information systems. CASE tools are the software that is used to design and construct information systems. A CASE environment is a set of CASE tools, it includes any use of computer-based support in the software development process.
2. Explain the difference between procedural and non-procedural languages. A procedural language requires a programmer to create code statements for each processing step, while non-procedural a programmer defines the actions that the program must perform when certain events occur.
3. Describe 4GLs and their characteristics. Fourth-generation languages (4GLs) are non-procedural programming languages that are especially valuable in implementing an object-oriented sys
...tem design. The commands tend to resemble natural statements that people use.
4. Define a repository, and explain its role in the systems development process. A repository is a database that serves as a central storage location for all information about the system being developed. Once a data element has been defined in the repository, it can be accessed and used by processes and other information systems.
5. What are forward and reverse engineering tools, and how are they used? Forward engineering means translating business processes and functions into applications, and reverse engineering is examining an existing application and breaking it down into a series of diagrams, structure chars, and source code. They are both used to develop systems using past systems.
6. Provide an example of an application generator and a screen generator. An example of an application generator is java
An example of a screen generator is Gillani’s FourGen CASE tools.
7. How is a report generator used, and what is a mock-up report? A report generator is used by modifying a report to the layout you are satisfied with and then the report writer creates a report definition and program code that produces a report. By inputting sample field values you create a mock-up report.
8. Explain the concept of an integrated development environment and provide two examples of IDEs. Integrated development environment uses a built-in CASE tool that a software vendor has included to make it easier to plan, construct, and maintain a specific software product. An IDE is designed to allow the easy integration of system components with less time being spent on developing code for interactive modules. Two examples of IDEs are Oracle Designer that comes packaged with Oracle, and Microsoft’s Visual Studio 2010.
9. What are some features of the Visible Analyst CASE tool? Some features of the Visible Analyst CASE tool are it offers tools for data and application modeling, code generation, and software configuration management. It can generate many types of modes and diagrams. It also provides a full range of Help features, including the error message analysis screen. 10. What is the emerging role of object-oriented analysis and design methods? The emerging role of object-oriented analysis and design methods is to provide seamless development from panning to actual coding.
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