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Describe about the Environmental model
It indicates environment in which system exists. Any small or big system is a sub-system of a larger system. For illustration, if software is developed for a college, then college would be part of University. If it's developed for University, University will be part of national educational system. Hence, when model of the system is made these external interfaces are defined. These interfaces reflect system's relationship with external universe (known as environment). Environment of a college system is demonstrated in figure below.
The University needs to develop an online student registration system for new CAO entrants. This system will allow new students to enroll in their university course. Each student i
Word Processing Software: Word processing is one of the most wide spread applications software types in use today. Developed as a successor to primitive text-editors that re o
State Lehman's First law A program that is used in real world environment of necessity must change or become progressively less useful in that environment.
Functional testing is black-box type of testing geared to functional needs of an application. Test engineers *should* do functional testing.
What is architectural evolution? Architectural evolution is the practice of modifying a system from a centralized architecture to a distributed architecture like client server.
What are the common approaches in debugging? Brute force method: The memory dumps and run-time tracks are explained and program with write statements is loaded to get clues to
Parallel/audit testing is testing where the user reconciles the output of the latest system to the output of the present system to determine the new system performs the operations
What are CMMI model components? Process areas 24 process areas that are applicable to process capability and improvement are identified. These are organised int
What is Version and release management? Invent an identification system for system versions. Plan when a new system version is to be formed. Ensure that version managemen
What are the reasons behind to perform white box testing? There are three major reasons behind performing the white box testing. 1. Programmers may have some incorrect assum
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