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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.
Draw the Context level DFD for the Safe home Software. User commands Alarm type Telephone Number tone Sensor status Display Information
what are the main characteristics of software lease
I need help for my X86 Assembler program
Q. Compare and contrast reliability and availability? Ans. Reliability: The probability of failure-free system operation over a specified time in a given environment for a gi
Distribution of the Package: In the last 12 years of its existence CDS/ISIS software has become one of the most popular packages of its kind. It is estimated that there are ab
What are the various categories of software? Application software System software Engineering/Scientific software Web Applications Embedded software Artificial I
Question: a. Assume that you have three similar projects, and, in each, the ratios of problems found during system test versus first year in the field have been 1.5, 1.2, and
Q. What is reverse engineering? Ans. It is a method of analysing software with a view to understanding its design and specification. - In source code, reverse engineering
Explain in detail about Integration testing. It is a systematic method for constructing the program structure. Incremental integration - The program is constructed and
pls explain how to calculatethe cyclomatic complexity and independent paths Determine the cyclomatic complexity of the code ( (iii) Identify all the independent paths
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