Whenever a new system is installed, the implementation integrates a number of related and different tasks. The process has to be efficiently organized and it is for this very reason that CASE tools are developed. With the help of CASE, the installation process can be automated and coordinated within the developed and adopted system life cycle.
CASE tools are the software engineering tools that permit collaborative software development and maintenance. Almost all the phases of the software development life cycle are supported by them such as analysis; design, etc., including umbrella activities such as project management, configuration management etc. In general, standard software development methods such as Jackson Structure programming or structured system analysis and design method are also supported by CASE tools. CASE tools may support the following development steps for developing data base application:
Creation of data flow and entity models
Establishing a relationship between requirements and models
Development of top-level design
Development of functional and process description
Development of test cases.
Why CASE tools are developed:
CASE tools are designed to enhance and upgrade the computing system adopted and used. This is very important with regards to the dependence on a computer-based environment for business and/or personal pursuits. It is an important part of various business growth strategies. The CASE tools are developed for the following reasons:
Firstly Quick Installation.
Time Saving by reducing coding and testing time.
Enrich graphical techniques and data flow.
Optimum use of available information.
Enhanced analysis and design development.
Create and manipulate documentation.
Transfer the information between tools efficiently.
The speed during the system development increased.
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