This section covers the extended services so far defined by the standard and gives a description of the main features and implications for library and information service provision. The persistent result set can be added to or deleted as required. Another use might be the creation of a set of records which could then be accessed by several users or actively sent to several users as part of a Push type service. New book records from suppliers as a potential requirements or desiderata list could be handled this way. Furthermore, the results can be exported to a specific destination via a specified mechanism such as Fax, e-mail, X400 address etc.
Active flag Allows the origin to stop and start a schedule at any time.
Required if the query is a new one or the database names are not in the Query Package. Expiration Date after which the query schedule will lapse. An existing Persistent Result Set can be named or a new one created. Result set disposition Can be set to create a new result set each time the query is run, append to an existing one or replace the existing one. An alert destination can be supplied e.g. e-mail address, fax number, printer etc.