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Data Flow Diagrams (DFD)
It's a graphical representation of flow of data through a system. It pictures a system like a network of functional processes. The foundation of DFD is a data flow graph that pictorially represents transformation on data as demonstrated in Figure.
Q. Explain the concept of Top down design? Top down design: A top down design approach begins by identifying the major modules of the system decomposing them into their lower
What are the types of Software system requirements ? Functional requirements: Services the system should be required. Non-functional requirements: Constraints on the servi
Disadvantage of Software package: There are some disadvantages which need to be looked into. They are: i) A commercial software package will have a number of built-in
What is Relationship Entities are associated to each other by relationships. It denotes how two entities are associated. A diamond notation with name of relationship signifi
Define graph matrix and connection matrix. Graph matrix: A graph matrix is a square matrix whose size (i.e., number of rows and columns) is equivalent to the number of n
Performance testing signifies loads, volumes, and response times, as described by requirements. Although performance testing is a part of system testing, it can be regarded as a ex
Q. Show the Different levels of CMM? 1) Initial (maturity level 1)- At this the lowest level there are fundamentally no sound software engineering management practices in plac
Q. Explain the relationship between Productivity and difficulty? Productivity refers to metrics as well as measures of output from production processes per unit of input. Pr
Explain in detail about Black box testing. Black box or behavioural testing focuses on the functional needs of the software. It is applied during the last phase of testin
Q. Show the Reasons of current software crisis? larger problem sizes, increasing skill shortage, and lack of adequate training in software engineering,
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