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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.
difference between implicit and explicit conceptual model
State Entity /Relationship diagram. ERD depicts relationships among data objects. The ERD is the notation that is used to conduct the data modeling activity. The primary
QUESTION (a) Draw a use case diagram (UCD) for the given case study. For any one use case give a detail use case specification (b) Describe the different phases and workflow
What is a variant Ans) "Variants" are versions of a program.
Define Process Specification . Process Specification is used to clarify all flow model processes that appear at the final level of refinement. Check & Convert pressure
Differentiate between failures and faults. Failure:- Failure is the departure of external results of program operation from requirements. So failure is dynamic. Failure can
What are the advantages and disadvantages of big-bang? Advantages: This approach is easy. Disadvantages: It is difficult to debug.It is not easy to isolate errors whereas te
What are the types of static testing tools? There are three types of static testing tools. Code based testing tools - These tools utilize source code as input and generate t
You have been commissioned to design and run the usability testing for an upcoming e-commerce website that will sell computing hardware and software. In this first part of the
Explain in detail about system testing. System testing Stress testing Performance testing Security testing
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