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difference between implicit and explicit conceptual model
State Lehman's First law. A program that is used in true world environment essentially must change or become progressively less useful in that environment.
Write short notes on estimation models. Empirical estimation models can be used to complement decomposition methods and propose a potentially valuable approach in their own rig
ER model shows Static view.
What does Data abstraction contains? A Data abstraction is a named collection of data that describes a data object Eg: door Attributes: door type, Opening mechanism, Swing d
List the important properties of a modular system. Desirable properties are:- Every module is a well defined subsystem useful to others Every module has a well defined single
Errors from previous stage Errors passed through Amplified errors Newly generated errors Errors passed to next stage Testing phase of project-A 35 35 0 5 20 Testing phase of Projec
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
Construct an E-R diagram for a department store database. This database contains information about customers, items they order, departments in the store, employees, and suppliers o
Structured Analysis Model Structured analysis is the most broadly used of requirements modeling techniques relies on flow modeling and data modeling to established t
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