Legacy Services to SOA
of service oriented architecture (SOA) has the potential to
by orders of magnitude reduce the cost of ownership while more
effectively making services readily available to whom ever and
when ever needed. Much needed functionality may need to be developed,
but much is either in legacy systems or in some capability pipeline.
WeatherEye applies a set of procedures and organizational construct
to identify existing capability, capability in the pipeline
and futures to more quickly capitalize on SOA.
contain many functions when as a whole create the application.
These functions also have value as standalone services. The
ideal situation is to make these functional services available
without impacting the legacy system. This can be accomplished
by a service
to the application or extract the functionality and create a
service wrapper. In both cases the goal is achieved through
the maximum use of proven components and code.
How do WeatherEye's
customer's achieve their SOA goals? First by beginning to catalog
functions in legacy systems and map this functions to required
SOA capability. The second stage is to define a process and
technolgies to interface to SOA either directly or through a
wrapper. Finally, identify new service requirements that need
to be developed or acquired from a third party. Bundled, these
services offer a range of capabilities that blend proven, customer
specific components with new or technologically superior components.
All being delivered in a continuous improvement fashion.