There are many views used in the client database. Originally they were prefixed with qry but all new development should use the prefix vw. The views that are added now should also be prefixed with a code that helps other developers understand where these views are used. For example, most opportunity based view names are prefixed with the vwOpp tag or qryOpp tag. Sub views (or views used to build other views) should be noted as such as well using the _sub# tag at the end of the name.