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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.
Configuration management (CM) covers the tools and procedure used to control, coordinate and track code, needs, documentation, problems, change requests, designs, tools, compilers,
why are older data models are being replaced by new data models
Explain the concept of Decision Tables Decision table models complex logic into precise yet compact way. A decision table lists causes and effects in a matrix. Every column
Q. Explain about Function count? Function count:- It measures the functionality from the user point of view that is on the basis of what the user requests and receives in ret
What are the fundamental activities of a software process? Specification Validation Design and implementation Evolution
Problem 1. Explain why the use of a standard high-level language does not guarantee that software will be portable across a range of machines 2. Draw possible data flow diag
Indexing: The CDS/ISIS package indexes all fields selected for indexing into a single file. This file is known as 'inverted file'. There are indexing techniques for building i
QUESTION - Fault Tolerance (a) Three computers together provide a replicated service. The manufacturers claim that each computer has a mean time between failure of five days; a
What is stress testing and performance testing? A stress testing executes a system in a way that demands resources in abnormal quantity, volume or frequency. Performance te
State Lehman's First law A program that is used in real world environment of necessity must change or become progressively less useful in that environment.
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