Constant innovation is the key to success, in any walk
of life. So, departments and their systems need to be autonomous. But, since they
require each other's data, they need to integrate. This leads to the necessity for a farm
of autonomous systems, which are all federated to the required level to facilitate
information flow.
Why Enterprise Service Bus
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The following figure represents systems that are autonomous, but federated to
facilitate information flow:
Intranet versus Internet
Integrating different functional departments within an organization is not a big
hurdle, since everything is under the control of the organization. But the picture
changes the moment the organization grows beyond a certain limit. Twenty first
century organizations are growing beyond a single location; many of them are truly
global organizations. They have operations around the globe, in multiple countries,
with multiple legal, technical, and operational environments. The good news is
that we have technologies like Internet, Wide Area Networks, and Virtual Private
Networks for connectivity.
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