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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.
Explain in detail about Black box testing. Black box or behavioural testing focuses on the functional needs of the software. It is applied during the last phase of testin
Write down short notes on empirical estimation models ?
Q. Write short notes on Quick-fix Model? Quick-fix Model: This is the simplest model utilized for the maintenance of the software. In this model modification at the code level
What are the various categories of software? Application software System software Engineering/Scientific software Web Applications Embedded software Artificial I
Q. Assuming the Putnam model and given S = 100,000 C = 5000 and D 0 = 15 calculate the development time t d. Ans: In Putnam model (S/C ) 3 = D 0 t d 7 lhs = 20
normal vector
Name the design phase of SDLC Generally, design is performed in the below two steps: i) Primary Design Phase: In this phase, system is designed at block level. Blocks are
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.
Attributes Attribute is a characteristic or property of an entity which is of interest to the organisation. It's represented by oval shaped box with name of attribute writt
What are the Tools of environmental model (i) Statement of purpose: It indicates basic objectives of system. (ii) Event list: It describes different events of system
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