MAKE CHANGES EASILY USING SERVICE MEDIATION
Changes in business will happentoday, tomorrow
, next week. A business can manage those changes more easily with service mediation, which virtualizes shared services.
Using service mediation, a governance technique, a company can easily:
Grow and evolve shared services, service consumers and providers
Change protocols, message formats or service locationswithout impacting consumer-provider relationships
Make the same service available to new applications over a different protocol or security standardwithout costly recodingM
Make sure the service mediation you select helps keep your service oriented architecture flexible by supporting the latest Web service, security and enterprise infrastructure standards.
Software AG offers a service intermediary called webMethods Mediator that enforces the run-time policies created in CentraSite. Combined with CentraSite, the product provides end-to-end governance of services from development to run-time.
About smart policy provisioning
One-to-one policy provisioning works for a small number of services but can quickly become unwieldy as
service oriented architecture grows. It simply takes too much time to manually apply policies to services. With the right service mediation, a company can automatically enforce policies on all assets that meet specific criteria.
About security
Service mediation provides a central point for controlling access to all services in a service oriented architecture regardless of the platform that hosts the services. This makes life easier for everyone. Service providers can focus on service functionality and not worry about security issues.
About scalability
When selecting a service mediation tool, make sure it can support clustering, optimized policy enforcement, out-of-band processing for metrics and events, and optional logging of request and response payload to scale with your needs.
The value of good governance
Without proper control, the flexibility of
SOA can devolve into chaos. By definition, this architecture brings a dramatic increase in the number of interdependent moving parts in the systems environment. In turn, an increase in the number of parts is accompanied by an exponential growth in the number and complexity of interdependencies.
Uncontrolled means that services are developed, invoked and orchestrated at any time into complicated construction. Rather than creating a platform for effective re-use and responding rapidly to business goals and changing market conditions, an uncontrolled architecture leads to redundancy in development and lack of visibility into systems that impact key processes.
Unfortunately, under this scenario not only do companies end up failing to achieve the return on investment they anticipate, they may even spend more time and money over the long haul than they would have under traditional development. IT may see more redundancy of services and greater infrastructure complexity as a result of poor governance and through the uncontrolled proliferation of services that are that are difficult to locate or inadequately constructed or understood.
Industry analysts maintain that the key to successful projects is to understand and control your artifacts, and the key to understanding these artifacts is the right governance.
Learn more about service mediation at: http://www.softwareag.com/corporate/products/wm/soagovernance/mediator/overview/default.asp
MAKE CHANGES EASILY USING SERVICE MEDIATION
By: Callie Brown
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