An explicit query expression can employ a number of operators and modifiers to refine the search. Although an explicit query can employ operators and modifiers, all aspects of the search must be explicitly invoked. A simple query expression is somewhat more powerful since it employs operators by default. You can assemble an explicit query expression programmatically or simply pass a simple query expression to the search engine directly from an HTML input form. The Verity query language provides many operators and modifiers for composing queries.
Simple queries allow end users to enter simple, comma-delimited strings and use wildcard characters.
By default, a simple query searches for words, not strings. You can use wildcards, however to broaden the scope of the search. Case is ignored. Ordinarily, operators are employed in explicit query expressions. A simple query employs the STEM operator and the MANY modifier.