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Web Services: Applications
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Amazon Web Services and Facebook are teaming up to help developers build instantly scalable applications. Build your Facebook app on AWS to ensure reliability, flexibility, and cost-effectiveness as your application grows in popularity. Check out the AWS/Facebook page for developer tools, case studies, and tutorials to help you get started.
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With the Web Services approach, application design becomes the act of describing the capabilities of network services to perform a function and describing the orchestration of these collaborators. At runtime, application execution is a matter of translating the collaborator requirements into input for a discovery mechanism, locating a collaborator capable of providing the right service and orchestrating message sends to collaborators to invoke their services. These new applications, themselves, become services... creating aggregated services available for discovery and collaboration.
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Web services have been initially successful in private environments where large enterprises need to exchange data with their divisions and subsidiaries or with partners and clients. In such controlled situations, agreement on the data being passed between Web service components is more easily obtained. In addition, since Web services use open standards, vendors can supply customers with client side software to add to their applications no matter what the platform.
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The OpSource Services Bus (OSB) is the foundation for OpSource's turnkey development and delivery environment for software as a service and web companies. Based on a Service-Oriented Architecture, it allows applications running on the OpSource On-Demand platform to quickly and easily tap web services such as business analytics, onboarding, billing, and more to come. There is no longer a need to write code for these business functions, as OpSource has already invested in the upfront development. Leverage the OSB to quickly gain business functions and accelerate your time-to-market.
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Web services are a new breed of Web application. They are self-contained, self-describing, modular applications that can be published, located, and invoked across the Web. Web services perform functions, which can be anything from simple requests to complicated business processes...Once a Web service is deployed, other applications (and other Web services) can discover and invoke the deployed service.
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Web services are the basis of distributed computing across the Internet. A Web service consumer locates a Web service and invokes the operations it provides. The Web service provider (the application implementing the Web service) can be on the same Java virtual machine as the one using it, or it can be thousands of miles away. Web services use standard Web protocols such as XML, SOAP, and HTTP.
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