INTRO.TO COMPUTING SYSTEMS >INTL.ED.<
INTRO.TO COMPUTING SYSTEMS >INTL.ED.<
3rd Edition
ISBN: 9781260565911
Author: PATT
Publisher: MCG
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Chapter 1, Problem 20E
Program Plan Intro

Levels of transformation

  • It refers to various steps for converting data from one format or structure to another format.
  • It is a fundamental feature of most data integration and data management tasks such as data integration, data warehousing and application integration.
  • It can be simple or complex based on the required changes to the data between the source and target data.
  • There are seven main levels of transformation which are problems, algorithms, language, machine architecture, microarchitecture, circuits and devices.

Abstraction

  • Abstraction is the process by which lower level details are hidden and information that is required only for understanding a particular level is displayed.
  • It is the process of taking away or removing characteristics from something for reducing a set of essential characteristics.
  • It is related to both encapsulation and data hiding.

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