Core Middleware Components
There are several elements of middleware that seem at the core, a set of services
that virtually all other middleware components depend on. These include:
- Identification - a set of computer-readable
codes that uniquely specify a subject.
- Authentication - the process of a subject
electronically establishing that it is, in fact, the object associated with
a particular identity.
- Directory Services - central repositories that
hold information and data associated with identities. These repositories are
accessed by people and by applications to get information, customize generic
environments to individual preferences, route mail and documents, etc.
- Authorization Services - those permissions
and workflow engines that drive transaction handling, administrative applications,
and automation of business processes
In addition, there is core set of technologies emerging in the security arena
called digital certificates and public-key infrastructures
(PKI). This area is integrally related to the above issues in several key