Service Oriented Architectures Presentation By: Clifton Sweeney November 3 rd 2008

What are Service Oriented Architectures? (SOA) Provides methods for systems development and integration.

What does a business need? Highly distributable communications and integration backbone.

What are we discussing today? Technologies that make up SOA. Approaches that unify concepts in SOA. Extensions of the original concept.

Goals Streamline existing business processes. Streamline a version of SOA (xSOA) for widespread use. Incorporate the use of Web Service. Seem-less running of programs throughout the network to eliminate barriers.

General Architecture Structures large applications as an ad hoc collection of smaller modules called services. Focused on creating a design style.

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Bound Pairs Service interface Defines the identity of a service. Service implementation Implements the work to be done.

Services - Characteristics Everything is a service. Everything is autonomous. Everything is invocable.

Services - Roles Client SOAP to XML Provider

Services - Roles Service Brokering Trusted party that forces providers to adhere to common practices.

Enterprise Service Bus Software architecture construct. Referred to as middleware. Open bus designed for implementation, deployment, and management of SOA based solutions.

Enterprise Service Bus Responsibilities Control flow and translations of all messages between services. Pulls together applications to create assemblies of services to form composite business processes.

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Real world example

Successful ESB requirements Dynamic connectivity Integration capabilities Security Monitoring Health Scalability for future

Enabling Technology in ESB ESB fuse four types of technologies: Integration brokers Application servers Business process management Adapters

Integration Brokers

Application Servers

Business Process Management BPM is the new generation of technology that provides end to end visibility and control over all parts of a long lived, multi step information request that spans multiple applications and humans in multiple enterprises.

What does that mean? BPM software solutions in an ESB include: Workflow related processes Process analysis Visualization techniques

Adapters Provide connectivity Semantic disambiguation Translation services between apps and collaborations.

Adapters Con’t

Extending SOA (xSOA) SOA could be extended to support capabilities such as service orchestration, intelligent routing, provisioning, and service management. Guarantee the integrity of data and security of messages.

xSOA Is an attempt to streamline SOA. Its layers embrace a multi- dimensional, separation of concerns in such a way that each layer defines a set of constructs, roles, and responsibilities.

xSOA con’t

xSOA Con’t xSOA incorporates a service composition tier to offer necessary roles and functionality for the consolidation of multiple services into a single composite service.

Successfully build and deploy a distributed SOA you need? Service enablement Service orchestration Deployment Management

Questions?