Question

What is the difference between data condensation and data reduction?

Answer 1

Data condensation : It means to reduce the data file size or volume. It has same literal meaning as Data compression.

However, in Computing dictionary, the term Data Compression or Data Condensation means encoding the data to reduce the file size before transmission or archiving.

Data Reduction: A database may store terabytes of data. So it may take very long to perform data analysis and mining on such huge amounts of data.  Data reduction techniques can be applied to obtain a reduced representation of the data set that is much smaller in volume but still contain critical information.

Examples:

1. In condensation or compression mean we compress the data with a software like WinRAR, 7-Zip etc
2. In reduction the database software such as MS Access produces a reduced representation of the data which still has the critical information stored in it.

Hope this helps!

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Regards,

Soham Patil.