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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 software architecture? The software architecture of a program or computing system is the structure or structures of the system, which comprises software methods, the e
Write the definition of design process. Design process is a sequence of steps carried by which the requirements are transformed into a system or software model.
A one-car taxi company receives an average of 18 calls per day. The receptionist takes down details of the requested journey and relays them to the driver by radio. Each passenger'
What is System Engineering? System Engineering means designing, executing, deploying and operating systems which contain hardware, software and people.
When to Re-Engineer? When the system alter are mostly confined to part of the system then re-engineer that part. When hardware or software support becomes obsolete.
Explain the Instruction pipelines Instruction pipelines: - An instructin pipeline reads consecutive instructions from memory whereas previous instructions are being implemented
Problem : (a) What does a UseCase Diagram represent? (b) Draw a UseCase Diagram for the above case study. (c) For any one use case give a detail use case specification.
Question: (a) ‘Information Strategy involves the encompassing of an organisation's information requirements and information systems planning with its long-term objectives.' T
RAD Model Rapid Application Development Model is the method of incremental model. Achieves the high speed development using component based construction. Phases
What is Checksheet? Ans) A checksheet is the form used to record data as it is gathered.
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