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The review of comparison methods and types 

 

Text comparison utilities suggest several methods or types of comparison. Once you have downloaded some tool, you might want to find out what comparison types do this very utility supports and if you really need this comparison method. In this article we've reviewed most popular comparison types and put our comments on what is the appropriate comparison type for various  people and jobs.

  1. Comparison for specific job or industry

  2. Various comparison types

  3. Comparison in Compare PDF

Comparison for specific job or industry

 

Job Comparison type When use
Software engineer or web-master By Characters When need to find changes in the word and highlights changed characters. 
By Words When comparing documents that have common ancestor.
Legal, health care, education, finance professionals By Words When doing detailed comparison of documents that have common ancestor. 
By Keywords When need to find common idea of two texts, when need to find the focus of each document

 

Comparisons types

 

Comparison type: by characters

When use: When need to find changes in the word and highlights changed characters

Who use: Software engineers and web-masters when reviewing source codes

Example:

Text1. Modified and deleted  characters were highlighted

Text2. Modified and new characters were highlighted

Text1. Modified and deleted  characters were highlighted

Text2. Modified and new characters were highlighted

Added character - Deleted character - Modified character

 

Comparison type: by words

When use: When comparing documents that have common ancestor

Who use: Software engineers and web-masters when doing repaid review; 

Legal, health care, education professionals when doing detailed comparison of documents that have common ancestor

Example:

Text1. Modified and deleted  words were highlighted

Text2. Modified and new words were highlighted

Text1. Modified and deleted  words were highlighted

Text2. Modified and new words were highlighted

Added words - Deleted words - Modified words

 

Comparison type: by keywords

When use: When comparing non-related documents (documents doesn't have common ancestor)

Who use: Legal, health care, education, finance professionals when need to find common idea of two texts, when need to find the focus of each document

Example:

Text1. Common and unique keywords were highlighted

Text2. Common and unique keywords were highlighted

Text1. Common and unique keywords were highlighted

Text2. Common and unique keywords were highlighted

Unique (new) keywords - Common keywords (appear in both texts)

Comparison in Compare PDF

Compare PDF supports all these comparison types. It allows to compare texts by characters, by words, and by keywords.

You can run Compare PDF, and select necessary comparison method in drop down menu. More over: you can change the comparison method on-the-fly. You can compare two texts by characters, and then compare the same texts by keywords by changing comparison method.

 

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