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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.
Question: (a) Give three advantages of using mobile agents. (b) Distinguish between Static Itinerary Static Order (SISO) and Static Itinerary Dynamic Order (SIDO) mobility
Throw-away prototyping Objective: The principal objective of this model is to validate or to derive the system requirements. It is developed to reduce requir
Testing that takes into account the internal mechanism [structure] of a system or component. Types contain branch testing, path testing, statement testing. Testing to insure eve
A software tool that accepts as input source code, specifications, test criteria, or data structure definitions; uses these inputs to make test input data; and, sometimes, verifies
When is RTM (Requirement traceability matrix) prepared - after or before test case designing? - RTM is prepared before test case designing. - Requirements must be traceable
Explain Walk-through? Ans) A walk-through (in software QA) is a casual meeting for evaluation or informational purposes. A walk-through is also a method at an abstract level. It
What does data object means? Data object is a group of attributes that behave as an aspect, quality, characteristic or descriptor of the object.
What is RAD Approach As the term suggests, this model gives a quick approach for software development and is based on a linear sequential flow of numerous development processe
What are business process engineering tools? By modelling the strategic information requirements of an organization, business process engineering tools provide a "meta-model" f
What are the conditions exists after performing validation testing? After performing the validation testing there two situations arise. The function or performance characterist
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