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Explain about the E-R Diagram
Entity-relationship (E-R) diagram is detailed logical representation of data for an organisation. It is data oriented model of a system while DFD is a process oriented model. ER diagram represent data at rest whereas DFD tracks the motion of data.
ERD doesn't provide any information regarding functionality of data. It has 3 main components - data entities, their relationships and their associated attributes.
Q. Show the Reasons of current software crisis? larger problem sizes, increasing skill shortage, and lack of adequate training in software engineering,
Define Data Flow Diagram. A Data flow diagram is a graphical representation that depicts information flow & the transforms that are applied as data move from input to output.
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
What is the work product of software design process and who does this? A design model that encompasses architectural, component level, interface and their representations is t
What is Quality control? This includes checking the software development process to ensure that procedures and standards are being followed. There are two approaches to qual
Smoke testing It decreases the integration risk. Error diagnosis and correction are simplified
difference between implicit and explicit conceptual model
Q. What do you mean by class? A class is a template that specifies the properties of objects. Classes have an interface that consists of the operation a body which implements t
What is COCOMO model? COnstructive COst MOdel is a cost model, which provides the estimate of number of man-months it will take to make the software product.
What is Review? Ans) A method or meeting during which a work product or set of work products, is shown to project personnel, managers, users, customers, or other interested part
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