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There are number of CASE tools available to simplify various stages of Software Development Life Cycle such as Analysis tools, Design tools, Project management tools, Database Management tools, Documentation tools are to name a few.

Use of CASE tools accelerates the development of project to produce desired result and helps to uncover flaws before moving ahead with next stage in software development.

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CASE tools can be broadly divided into the following parts based on their use at a particular SDLC stage: CASE tools can be grouped together if they have similar functionality, process activities and capability of getting integrated with other tools. Now we briefly go through various CASE tools These tools are used to represent system components, data and control flow among various software components and system structure in a graphical form.

For example, Flow Chart Maker tool for creating state-of-the-art flowcharts.

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The term CASE was originally coined by software company, Nastec Corporation of Southfield, Michigan in 1982 with their original integrated graphics and text editor Graphi Text, which also was the first microcomputer-based system to use hyperlinks to cross-reference text strings in documents — an early forerunner of today's web page link.

Graphi Text's successor product, Design Aid was the first microprocessor-based tool to logically and semantically evaluate software and system design diagrams and build a data dictionary.

• Involves Execution of a System or Component• Selection of a Group of Test Cases Consisting of Test Data• Finding out Output Test Results out of Input Test Cases 9.

Sub Categories Dynamic Testing Functional Testing: A Type of Dynamic Testing• Involves Identification & Testing of all Functions of the System as Defined in Basic Requirements Documents• It is a Black Box Testing Not Expecting that the Tester should have any Knowledge of the Basic Code & Implementation of the System Contd.….. Sub Categories Dynamic Testing Structural Testing: A Type of Dynamic Testing• It is a White Box Testing Expecting Full knowledge of the Implementation of the System• Information of the Internal Structure of the System is Used to Design Tests for Checking the Function of Individual Components Contd.….. Sub Categories Dynamic Testing Random Testing: A Type of Dynamic Testing • Uses Free Selection of Test Cases outof a set of All Possible Test Cases • Uses Randomly Decided to Detect Faults which Go Undetected by Other Systematic Testing Techniques Contd.….. Sub Categories Dynamic Testing Random Testing: A Type of Dynamic Testing • Exhaustive Testing is a Form of Random Testing, Involving Input Test Cases having Every Possible Set of Input Values • Although We do Exhaustive Testing at Every Stage of Life Cycle, Complete Verification of the System, is not Possible & Realistic 17.

What does these Two Provide Verification Ensures that: Every Step in the Process of Building the Software Delivers the Correct Product Validation Ensures that: Software Being Developed or Changed Satisfies Functional and All Other Requirements 7.

Dynamic Testing - A Type of Verification What Does Dynamic Testing Do ?

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