This statement is made, even after
acknowledging various world wide standard bodies' aim and effort to reduce
system and application entropy. A few years back, Common Object Request Broker
Protocol's (CORBA) promise was to standardize binary protocol interface so that
any systems could interoperate. If we look at CORBA at this point, we can see that
CORBA has not attained its promise, that doesn't mean that we need to throw away
all those systems introduced during the 90's because we cannot integrate.
Enterprise Application Integration
David S. Linthicum defined EAI as:
The unrestricted sharing of data and business processes among any connected
applications and data sources in the enterprise.
This is a simple, straightforward definition. In my entire career, I have been fortunate
enough to participate in much new generation IT system development for domains
such as Airline, Healthcare, and Communications. Most of the time, I've been writing
either adapters between systems, or negotiating and formalizing data formats
between desperate systems. I know this is not because the former system's architects
haven't put a long term vision to their systems in the angle of interoperability, but
because systems have to evolve and interoperate in many new ways which were
not foreseen earlier.
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