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The Application Interface Specification (AIS) is a collection of open specifications that define the application programming interfaces (APIs) for high-availability application computer software. It is developed and published by the Service Availability Forum (SA Forum) and made freely available. Besides reducing the complexity of high-availability applications and shortening development time, the specifications intended to ease the portability of applications between different middleware implementations and to admit third party developers to a field that was highly proprietary in the past. ==History== The AIS is part of the Service Availability Interfaces (SAI) of the SA Forum. The original specifications, released on April 14, 2003, were the Availability Management Framework (AMF), the Cluster Membership Service (CLM) and four other utility services (Checkpoint, Event, Message, Lock). Additional services were added in subsequent releases. * Release 3 (January 18, 2006) added the first set of management services: Log, Notification and Information Model Management (IMM). * Release 4 (February 27, 2007) extended the utility services with Timer and Naming. * Release 5 (October 16, 2007) extended the management services with Security and added the Software Management Framework. * Release 6 (October 21, 2008) added the Platform Management Service to close the gap between AIS and HPI (Hardware Platform Interface). AIS consists of 12 services and two frameworks. The services are classified into three functional groups - AIS Platform Services, basic AIS Management Services, and general AIS Utility Services - in addition to the AIS Frameworks. Initially, the APIs were defined in the C programming language only, but as of July 2008, the Java mapping of the different service APIs is being released incrementally. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Application Interface Specification」の詳細全文を読む スポンサード リンク
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