| Software development
has gone through a number of paradigm changes. We have moved from
using a structured programming technique to object-oriented programming,
then to component-based programming and now we are moving to a
service-oriented programming style.
SODA embraces the concepts that were originated in object-oriented
and component-based development. It also extends these facilities
with distributed computing and quality of service concepts. In
addition, more emphasis is placed on asynchronous messaging, XML
for identifying data types and an increased use of protocols (over
API’s).
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SODA applies the
concepts of a service-oriented architecture to the design of a
single application. Service oriented applications are composed
of the run-time loose bundling of services. It is said that these
services are orchestrated
to solve some problem. This loose bundling is counter to the tighter
compiling technique used to bind many modern object oriented systems.
Note that each individual service is compiled, but the orchestration
between the services is intentionally kept out of the compiling.
Instead it is usually hosted in an orchestration engine where
run-time binding takes place.
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