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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.
What does Level0 DFD represent? Level0 DFD is known as 'fundamental system model' or 'context model'. In the context model the entire software system is shown by a single bubb
#question.hatley pirbhai .
Regression testing It is the re-execution of some subset of tests that have already been conducted to make sure the changes that have not been propagated unintended side effect
Write the definition of design process. Design process is a sequence of steps carried by which the requirements are transformed into a system or software model.
Task You have to design a digital system to produce a PWM signal that produces pulses at a frequency in the range 50 Hz -100 Hz . The pulses will be between 1 ms and 2 ms du
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
Q. Who is a stake holder for a software project? [Stake holder :- something or somebody with direct interest: a group or person with a direct interest, investment or involvem
The spiral model of software development Contains project risks evaluation during every iteration
What are the advantages and disadvantages of size measure? Advantages: Artifact of software development which is simply counted. Many existing methods use LOC as a key input. A
What is a user friendly document? Ans) A document is user friendly, when it is designed and written with simple of use, as single of the primary objectives of its design.
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