The Business Layer Technology.
June 5, 2000
The Business layer (or middleware layer) incorporates the logic for
encapsulating
the business process. Within this layer it is the responsibility,
from the Microsoft perspective, that COM and MTS (Microsoft
Transaction Server) interact with other Distributed coordinated
services to provide transactions for business "state" information.
For example, while IIS and ASP deliver content COM objects either
running with MTS or other middleware technologies, would provide
the logic for managing the business process.
Microsoft Transaction Server provides support for distributed
transactions and the coordination of those transactions. It
also supports the notion of packaging components and web
applications together within the same solution to provide
faster access and Just In Time activation for their component
parts.
MTS also provides a roles management system to enable a
more "workflow" style approach to running the business
components.
Microsoft also includes a Message Queue service. MSMQ aims
to provide a queue and state management solution via a
guaranteed delivery mechanism. The purpose of which is to
enable designers to implement state machines and queues
without repeat development. This frees developers from
having to re-implement messaging technology for each
solution.
Internet Information Server and ASP
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