A

[This is preliminary documentation and subject to change.]

abstract class

A WBEM base class used only as a template for derived classes. The __Event system class, for example, is an abstract class: Real-world events are modeled using classes derived from the __Event class, and instances are created from the __Event subclasses.

Active Directory Service Interface (ADSI)

A COM-based programming interface for accessing diverse directory services on a variety of platforms. ADSI is a dual interface in that it supports both virtual function table (VTBL) access and Automation.

aggregate event

An event type generated when many events are combined into one to avoid event flooding. Thus, an aggregate event is a summary of a series of events. Aggregate events are instances of the __AggregateEvent class.

alias

A symbolic reference in either a class or instance declaration to an object located elsewhere in a MOF file. Alias names follow the same rules as instance and class names. Aliases are typically used as shortcuts to lengthy object paths. To define an alias, add the phrase "as $AliasName" to the instance or class declaration.

association class

A class that describes a relationship between two classes or between instances of two classes. The properties of an association class include pointers, or references, to the two instances. All association classes are identified by the Association qualifier. Although inclusion is not mandatory, all WBEM classes can be included in several association classes.

ASSOCIATORS OF

A WBEM Query Language (WQL) statement that supports the traversal of associations programmatically by retrieving all endpoint instances that are associated with a particular source instance.

Also see SELECT, REFERENCES OF, and WQL and Associations.

asynchronous method

A method that allows a management application to do other tasks while requests are pending and results are delivered through another thread. This improves management application performance. Asynchronous methods have an Async suffix.

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