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What is meant by Data dictionary?
The Data dictionary is a prepared listing of all data elements that are pertinent to the system, with precise, rigorous explanations so that both user & system analyst will have a common understanding of outputs, inputs, components of store & intermediate calculations.
APPLICATIONS SOFTWARE: As has been mentioned earlier, software may conveniently be divided into: systems software (i.e., programs designed to control the execution of other pr
State about the Data Dictionary This is another tool of requirement analysis that reduces complexity of DFD. A data dictionary is a catalog of all components of a system. DFD
State Procedural abstraction. A Procedural abstraction is a named series of commands that has a specific and limited function. Eg: Open Walk to the door, reach out & grasp
Regression test cases which a program has previously implemented correctly in order to detect errors spawned by changes or corrections done during software development and maintena
testing
State the function of Functional model Functional model: This defines operation which the system must implement. For every operation, from analysis model must be assigned al
A dynamic analysis method which inserts assertions about the relationship among program variables into the program code. The truth of the assertions is determined as the program im
QUESTION - Name Services (a) Illustrate with help of a diagram the results of a DNS lookup and an ARP lookup assuming we are using IPv4. (b) Why do DNS root servers hold en
What is Verification represent? Verification represents the set of actions that are performed to confirm that the software correctly implements the particular functionality.
Iterative Enhancement Model This model was developed to remove disadvantages of waterfall model. In this model, phases of software development remain the same however the cons
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