USMBOK™: USM460
Service Availability Management
The agreed portion of time that an information system service and specific functions it supports can be used for productive work is termed its ‘availability’.
Good availability management focuses on avoiding downtime for services and assuming that failures will occur and planning accordingly. There are at least two perspectives of ‘availability’, the customer and provider views.
Availability Management has three simple principles:
- Availability is at the core of business and end user satisfaction
- Early recognition that when things go wrong, you can still achieve business and end user satisfaction
- Improving availability requires you understand how the service infrastructure (technology) supports the business processes
Charter Statement:
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To design, implement, manage and optimize the availability & use of services by customers in accordance with levels defined and authorized within service level agreements (SLAs).
Service Availability Management Quick Links
Best PracticesKey Performance Measures
Additional information on this topic is included in the Guide to the USMBOK and supporting reference materials.
Key Objectives
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The following key objectives are just some of those commonly found within this topic's standard operating practices:
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Key Concepts
The following key concepts are just some of those commonly found within this topic's standard operating practices:
- Further information is available in the Guide to the USMBOK
Key Artifacts
The following key artifacts are just some of those commonly found within this topic's standard operating practices:
- Further information is available in the Guide to the USMBOK
Major Activities
The following major activities are representative of those commonly found within this topics's standard operating practices:
- Further information is available in the Guide to the USMBOK
More...
The USMBOK provides a significant amount of additional information on each element of the framework, including this area. The additional information includes:
Best Practices :
Best practices represents a technique or method that through experience and research has reliably led to a desirable level of operation. The USMBOK provides specific guidance on the 'best practices' required to design, implement and sustain an efficient and effective operation and offer these through a subscription based service, the
Best Practice Statement Library.
Key Performance Measures :
The efficiency and effectiveness of an operation is measured through its 'performance'. The Performance Management Framework (PMF) provides three levels or types of measures to help manage performance from the strategic, tactical and operational perspective.
The USMBOK provides specific guidance on these 'key performance measures' through a dedicated, subscription based service, the
Key Performance Measure Library.
Extensions:
An 'extension' is an approved additional relevant reference to the USMBOK and typically in the form of :
- A book or publication with an ISBN or similar reference;
- A website page or pages;
- A white paper;
- A personally penned article or report;
- A periodical article or newsletter item;
More information on the available extensions and how they may be accessed or contributions submitted can be found here:

