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Symbols of a data flow diagram
1. Data Flow
Signifies the connectivity between various processes
2. Process
Performs some processing of input data
3. External Entity
Defines destination or source of system data. The entity that supplies or receives information.
4. Data Store
Repository of data
Q. Define Object in Software Engineering? Object:- An object is something which is capable of being seen, touched or sensed. Each object has certain distinctions or attributes
A document reporting on any event that happens during testing that needs further investigation.
1. Testing that employs a test data selection method designed to obtain test data capable of demonstrating the absence of a set of pre-specified faults, typically, frequently happe
RAD Model Rapid Application Development Model is the part of incremental model. Achieves the high speed development using component based construction. Phases
? A store is in the business of selling paints and hardware items. A number of reputed companies supply items to the store. New suppliers can also register with the store after pro
Explain in detail about Structural Modeling. Structural model having a detail refinement of ERD, data flow model and control flow model. Creating an ERD. Example: Saf
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What are the benefits of prototyping? i. Prototype serves as a basis for deriving system specification. ii. Design quality can be improved. iii. System can be maintained
What is equivalence partitioning? Equivalence partitioning is a black box method that separates the input domain into classes of data. From this data test cases can be derived.
What is Defect Analysis? Ans) Using defects as data for regularly quality improvement. Defect analysis usually to classify defects into categories and recognize possible causes
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