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The Service reuse scenario is as shown in the following figure:
Service Reuse
Service (Instance 1)
Service (Instance 2)
Service (Instance 3)
HTTP Binding HTTP Channel Consumer
Consumer
Consumer JMS Binding JMS Channel
E Mail Binding SMTP Channel
Why Enterprise Service Bus
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Service sharing is, in contrast, the true sharing of a service itself. This means the
service hosting environment is configured for different scenarios and consumers
access the same service instance through multiple channels or formats. SOA web
services can be leveraged to achieve this, and this is further enabled using a message
bus as shown in the following figure:
Service Sharing
Service (Instance)
HTTP
Binding
JMS
Binding
E Mail Binding
HTTP
Channel Consumer
Consumer
Consumer JMS
Channel
SMTP Channel
Message Bus
Linked Services
Microsoft SQL Server has the ability to query remote database objects as if they
were local to the server. Linked servers are useful in deployments, where the data
can be split by functional area into databases with very little coupling as a means
of scale out strategy.


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