General

This part of ISO/IEC ISI' 10615 covers the DSP invoker functions, in which a DSA chains a request and receives a result or an error, The related part of the ISP, AD132, covers the behaviour of the DSA in fulfilling distributed operations, when considered to be independent of the protocol used.

The objective of ISO/IEC ISP 10615-4 is to define capabilities and constraints on support for DSP by invoker functions of DSAs so that DSAs will be able to interwork within the Directory. Factors outside the scope of ISO/IEC ISP 10615-4 include, but are not limited to, DIT structure, behaviour in distributed operations and some aspects of authentication (e.g., simple authentication with protected passwords, strong authentication, and the use of non-local authentication information).

DSAs that do not support the distributed directory are outside the scope of ISO/IEC ISP 10615.

The scope of ISO/IEC ISP 10615 is limited to the '88 edition of the Directory standards.

Position Within the Taxonomy

This part of ISO/IEC ISP 10615 is identified in ISO/IEC TR 10000-2 as “AD122 - DSA invoker Role”.

It may be combined with other parts of ISO/IEC ISP 10615, with ISO/IEC ISP 10616 specifying use of the directory, and with T-Profiles specifying the OSI connection-mode transport service.

Scenario

The model used is described in Overview of Concepts, Models, and Services in [ ISO/IEC 9594-1 | CCITT X.500 ]. Specifications of ISO/IEC ISP 10615-4 apply to the invoker role of DSP for a DSA within the scenario of Figure 1.