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Explain a variable?
"Variables" are data items in a program whose values can change.
Draw the Context level DFD for the Safe home Software. User commands Alarm type Telephone Number tone Sensor status Display Information
State in detail about the Software design Software design is the core of software engineering process and first of three important technical activities that are design, coding,
Define the concept of SRS An SRS clearly defines following: • External Interfaces of the system: They identify information which is to flow 'from and to' to the system.
The inability of a system or system component to perform a needed function within specified limits.
What are the various testing activities? i. Test planning ii. Test case design iii. Data collection iv. Test execution v. Effective evaluation
Why testing is important with respect to software? A testing process focuses on logical internals of software ensuring that all statements have been tested and all are function
schema tools
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
What are the types of Software system requirements? Functional requirements: Services the system should give. Non-functional requirements: Constraints on the services.
Explain the Phased Waterfall Model It is a type of waterfall model where the project is separated into small phases and delivered at intervals by dissimilar teams. Different Te
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