Service Oriented Integration and Enterprise Service Bus

Agenda Service Orientation – SOA and SOI What is an ESB? Core features of an ESB ESB’s role in Service Orientation Discussion

Service Orientation – SOA and SOI

What is an ESB?

Core features of an ESB

ESB’s role in Service Orientation

Discussion

What is Service Orientation? A few definitions

A few definitions

Gartner "Service-oriented architecture is a client/server software design approach in which an application consists of software services and software service consumers (also known as clients or service requesters). SOA differs from the more general client/server model in its definitive emphasis on loose coupling between software components, and in its use of separately standing interfaces . "

"Service-oriented architecture is a client/server software design approach in which an application consists of software services and software service consumers (also known as clients or service requesters). SOA differs from the more general client/server model in its definitive emphasis on loose coupling between software components, and in its use of separately standing interfaces . "

W3C "A set of components which can be invoked, and whose interface descriptions can be published and discovered ."

"A set of components which can be invoked, and whose interface descriptions can be published and discovered ."

Wikipedia “ SOA provides a set of principles of governing concepts used during phases of systems development and integration. Such an architecture will package functionality as interoperable services : software modules provided as a service can be integrated or used by several organizations, even if their respective client systems are substantially different.”

“ SOA provides a set of principles of governing concepts used during phases of systems development and integration. Such an architecture will package functionality as interoperable services : software modules provided as a service can be integrated or used by several organizations, even if their respective client systems are substantially different.”

SOA is an architectural style A way of building systems that organizes the business functionality contained in enterprise applications into interoperable, loosely coupled, standards based services that can be combined and reused to meet business needs.

A way of building systems that organizes the business functionality contained in enterprise applications into

interoperable, loosely coupled, standards based services

that can be combined and reused to meet business needs.

Service Oriented Integration In addition to its architecture aspects, SOA needs governance, transition roadmap and business-IT alignment. It is a paradigm shift. Service Oriented Integration is a recently coined term to represent a service oriented approach to application integration using best practices, patterns and tools. Often used to prepare ground for SOA adoption.

In addition to its architecture aspects, SOA needs governance, transition roadmap and business-IT alignment. It is a paradigm shift.

Service Oriented Integration is a recently coined term to represent a service oriented approach to application integration using best practices, patterns and tools.

Often used to prepare ground for SOA adoption.

What is an ESB? Defining the Bus

Defining the Bus

Gartner "A Web-services-capable infrastructure that supports intelligently directed communication and mediated relationships among loosely coupled and decoupled biz components."

"A Web-services-capable infrastructure that supports intelligently directed communication and mediated relationships among loosely coupled and decoupled biz components."

Burton Group “ The ESB label simply implies that a product is some type of integration middleware product that supports both MOM and Web services protocols."

“ The ESB label simply implies that a product is some type of integration middleware product that supports both MOM and Web services protocols."

ESB – The Pattern A communications channel for message delivery from a single inbound endpoint to one or more outbound endpoints and provides protocol handling, message filtering, transformation, and routing , and optional “on the fly” message processing.

A communications channel for message delivery from a single inbound endpoint to one or more outbound endpoints and provides protocol handling, message filtering, transformation, and routing , and optional “on the fly” message processing.

ESB – The Pattern

Core Features Service End Point Virtualization Message Transformation Message Routing Protocol Translation Service Orchestration Security Service Monitoring & Alerting Transaction Management ESB

ESB in Service Orientated Integration An important enabling tool A Framework that implements patterns Transforms Integration Strategy From : Point-to-Point Integration To : SOI using ESB

An important enabling tool

A Framework that implements patterns

Transforms Integration Strategy

From : Point-to-Point Integration

To : SOI using ESB

Point to Point Integration Mainframe Application ERP CRM J2EE App .NET App Client App2 Client App3 Client App1 <<Client Tier>> Custom Logic Custom Logic Custom Logic << EAI >> Custom Logic Custom Logic Custom Logic << EAI >> Custom Logic Custom Logic Custom Logic << EAI >>

Service Oriented Integration: ESB as the Mediator Mainframe Application ERP CRM J2EE App .NET App Client App2 Client App3 Client App1 <<Client Tier>> ESB

Discussion