ISO International Standard

1.1.1 This Recommended Standard defines, in an abstract manner, a CSTS in terms of:

a) the procedures necessary to provide the service;

b) the states of the service;

c) the behavior of each procedure;

d) the states of the procedures;

e) the operations necessary to constitute the procedures; and

f) the parameters associated with each operation.

1.1.2 It does not specify:

a) individual application services, implementations, or products;

b) the implementation of entities or interfaces within real systems;

c) the methods or technologies required to acquire data;

d) the methods or technologies required to provide a suitable environment for communications; or

e) the management activities required to schedule and configure services.