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Explain about the E-R Diagram
Entity-relationship (E-R) diagram is detailed logical representation of data for an organisation. It is data oriented model of a system while DFD is a process oriented model. ER diagram represent data at rest whereas DFD tracks the motion of data.
ERD doesn't provide any information regarding functionality of data. It has 3 main components - data entities, their relationships and their associated attributes.
Define the method of Direct changeover With this technique, old system is stopped and new system is used Straight away; - This method can be disastrous if new system fails
Documentation explaining plans for, or results of, the testing of a system or component, Types contain test case specification, test incident report, test log, test procedure, test
What are the causes behind to perform white box testing? There are three main reasons behind performing the white box testing. 1. Programmers may have some incorrect assumpt
iii. Layered software architectures can be used to reduce coupling between the functions of a system that are closer to the machine and those that are closer to user needs. Why is
#include #include #include void ingresarnotas (float A[120][6], int m, int n) { int i, j; for (i=0; i for (j=0; i { printf ("ingrese
What is ripple effect? The ripple effect is a term used to describe a situation where, like the ever expanding ripples across water when an object is dropped into it, an
Q. Explain Predictive validity? Predictive validity: It is the potential of the model to predict future failure behaviour from present and past failure behaviour. This capabi
List the guidelines for data design. i. Apply systematic analysis on data. ii. Determine data structures and related operations. iii. Establish data dictionary. iv. Us
Discuss the limitations of software testing. How do we say that complete testing is impossible?.
Explain about the incremental model. Have similar phases as the waterfall model. Phases are Analysis. Design. Code. Test. Incremental model delivers
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