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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.
What is the purpose of timeline chart? The purpose of the timeline chart is to emphasize the scope of the individual task. As set of tasks are given as input to the timeline ch
Categories of software maintenance There are three categories of maintenance: i) Corrective Maintenance ii) Adaptive Maintenance iii) Perfective Maintenance
Question: (a) Briefly explain the following concepts: (i) Encapsulation and its advantages (ii) Abstract class and its use (iii) Polymorphism and its advantages (b)
Explain Process and product quality The quality of a developed product is influenced by the quality of the production process. This is important in software development as some
how to draw decosion table? questions based on decision table.
Q. Explain the relationship between Productivity and difficulty? Productivity refers to metrics as well as measures of output from production processes per unit of input. Pr
Q. What are the advantages of using testing tools? Ans: The merits of testing tools are They improve the productivity and quality of software development. Help in
Write short notes on empirical estimation models. Estimation model for computer software uses empirically derived formulas to expect effort as a function of line of codes (LOC)
Explain the difference between Latent and Masked Defect. Latent Defect is one which has been in the system for a long time; but is discovered now. I.e. A defect which has been
c code for decode the code problem
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