COM

ALSO CALLED: Component Object Model, Object Linking and Embedding, OLE
DEFINITION: COM+ is an extension of Component Object Model (COM), Microsoft's strategic building block approach for developing application programs. COM+ is both an object-oriented programming architecture and a set of operating system services. It adds to COM a new set of system services for application components while they are running, such as notifying them of significant events or ensuring they are authorized  … 
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COM DEFINITION (continued): …  to run. COM+ is intended to provide a model that makes it relatively easy to create business applications that work well with the Microsoft Microsoft Transaction Server (MTS) in a Windows NT or subsequent system. It is viewed as Microsoft's answer to the Sun Microsystems-IBM-Oracle approach known as Enterprise JavaBeans (EJB).Among the services provided by COM+ are:An event registry that allows components to publish the possibility of an event and other components to subscribe to be notified when the event takes place. For example, when a sales transaction is completed, it could trigger an … 
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