This Recommendation | International Standard defines a systems management function which may be used by an application process in a centralized or decentralized environment to interact for the purposes of systems-management, as defined by CCITT Rec. X.700 | ISO/IEC 7498-4. This Recommendation | International Standard defines the response time monitoring function that consists of services, functional units, generic definitions and protocols. It is positioned in the application layer of ITU-T Rec. X.200 | ISO/IEC 7498 and is defined according to the model provided by ISO/IEC 9545. The role of systems management functions are described by ITU-T Rec. X.701 | ISO/IEC 10040. This Recommendation | International Standard: — establishes user requirements for the response time monitoring function; — establishes a model that relates the services and generic definitions provided by this function to user requirements; — defines the services provided by the function; — defines generic notification type; and — specifies the protocol that is necessary in order to provide the services. This Recommendation | International Standard does not: — define the nature of any implementation intended to provide the response time monitoring function; — specify the manner in which management is accomplished by the use of the response time monitoring; — define the nature of any interactions which result in the use of the response time monitoring; — specify the services necessary for the establishment, normal and abnormal release of a management association; — preclude the definition of further notification types. The functions and the management information defined in this Recommendation | International Standard include: — Summarization of the response time on any request of information and its management; — Definition of the relationship on response monitoring; — Setting and modification of the monitoring and the summarization conditions; — Scheduling of the monitoring and the summarization; and — Notification when response information or its statistical result is over a threshold. The functions and the management information defined in this Recommendation | International Standard do not include: — Management information definitions for summarization of response time statistical; — How to retrieve response times locally (e.g., the test function to confirm response times); and — Local mechanisms to summarize information related to the response request and response.