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Data Flow Diagrams (DFD)
It's a graphical representation of flow of data through a system. It pictures a system like a network of functional processes. The foundation of DFD is a data flow graph that pictorially represents transformation on data as demonstrated in Figure.
developer
What is Data Dictionary? Data dictionary is a storehouse of data giving information about data. It is a list of terms and their meaning for all data items and data files of a s
(a) Draw an Entity-Relationship model for the relational schema given in the Appendix. Show all the entities, relationships, relationship names, and attributes and also underline
How can a company improve quality of business information?
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
Q. How is cyclomatic complexity useful in program test and What is sequence of testing and What is testability? Ans. Cyclomatic complexity measures the amount of decision lo
What are the two levels of testing? i. Component testing Individual components are tested. Tests are produced from developer's experience. ii. System Testing The group
desidn a complete flow chart diagram ,which ask the user to input the rate of diesel and quantity of diesel consumed.after calculate the total amount of diesel consumed and display
Define design process. Design process is a sequence of steps carried through which the requirements are translated into a system or software model.
what is concurrency?
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