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System Design: An Object Oriented Approach
Any software systems always try to change and evolve as technology and business rules evolve. The development of information systems is unavoidable and it is a natural phenomenon. Organisations require to support systems evolution to take benefit of new technology and to address changing business rules. The evolutionary nature of software products requires us to maintain products with their repeatedly changing nature.
Not every software product developed is adaptable to these fast changes. In this fastly-increasing competitive business environment, there is hardly left any option instead of adopting technology that is adaptable to changes.
Define the term- Actors and Data Stores Actors: An actor is the active object which drives data flow graph by producing or consuming values. Actors are attached to inputs a
Problem 1 Why are the operational system keys not recommended for forming data warehouse primary keys? Give any two examples 2 Explain the following performance tuning techn
Why Like predicate used for? LIKE predicate: The LIKE predicate searches for strings in which have a certain pattern.
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Why a report generator is used ? Report generator is used for print files on paper.
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Insulation between conceptual and physical structures It can be defined as: 1. The Database Administrator should be capable to vary the storage structures without affectin
State about the Use Case Diagram A use case diagram represents a set of use cases, actors and their relationships. These diagrams shall be used to model context or requirement
What are the benefits of decomposing a system? The benefits of decomposing a system into subsystems are that after decomposition, each individual component become smaller and e
What are the failures of Controlling Events Between Objects Failure Unintentional termination of system. Several possible causes: failure of system hardware, o
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