The parentheses “( )”

The allow to indicate in which order the query must be processed, or to limit the impact of the ‘NOT’ operator.

Example 1 : if you enter the query:

invoice AND (estimate OR contract)’.

Text’O’Mat finds the documents (in grey):

either containing all at once the term ‘invoice’ and the term ‘estimate’,
or containing at once the term ‘invoice’ and the term ‘contract’.

Documents

Words contained in the document

Document 1

Estimate

Document 2

Invoice
Estimate

Document 3

Invoice

Document 4

Contract
Estimate

Document 5

Estimate
Invoice

Document 6

Contract

Example 2 : if you type the following query:

(invoice AND estimate) OR contract

Text’O’Mat finds the greysed documents containing:

either the term ‘invoice’ and the term ‘estimate’, without necessarily contain the term ‘contract’,
or the term ‘contract’.

Documents

Words contained in the document

Document 1

Estimate

Document 2

Invoice
Estimate

Document 3

Invoice

Document 4

Contract
Estimate

Document 5

Estimate
Invoice

Document 6

Contract

Example 3 : if your enter the query:

(invoice NOT estimate) OR contract’

Text’O’Mat retrieves all the documents (greysed) containing:

either the term ‘invoice’, without containing the term ‘estimate’,
or the term ‘contract’ and eventually the term ‘estimate’.

Documents

Words contained in the document

Document 1

Estimate

Document 2

Invoice
Estimate

Document 3

Invoice

Document 4

Contract
Estimate

Document 5

Estimate
Invoice

Document 6

Contract

Copyright © 2000 C2V (Computers, Communications & Visions).