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Discuss in detail about data modeling.
The data object.
Attributes.
Relationships.
Cardinality and Modality
Entity/Relationship Diagrams
Data Objects.
Various type indicators.
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 b
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
Write short notes on empirical estimation models. Estimation model for computer software uses empirically derived formulas to expect effort as a function of line of codes (LOC)
Describe Operational Testing? Ans) Testing done by the end user on software in its normal operating environment.
What are the guidelines for data design? i. Use systematic analysis on data. ii. Find data structures and related operations. iii. Prepare data dictionary. iv. Use inf
ER Diagram for safe Home Systems
Determine the various levels of testing The following are various levels of testing: Large systems are built out of subsystems which are made up of modules, modules of funct
(a) What is a view? (b) What is the implication of creating a view with the select * statement in the view definition? (c) Make reference to the relational schema given in
What are the proper testing strategy It is necessary to develop a proper testing strategy to ensure all possible scenarios are covered and that all error trapping techniques ar
What is meant by Information flow Continuity? When we refine a fundamental model for a system, the information flow continuity must be maintained .ie, input & output to every r
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