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Episode 72: Logical EA Integration Part 5

Today I will add an episode on integration because of the many interest that the last 4 episodes have created

First I will show you the 3 ESB topologies that are in use and give you the Pro & Con argument:

1. Central ESB topology Pro: Easy to implement and administer & all parts in one place Con: Requires all systems to be message enabled, no central unified message protocol, little reuse and does not support universal encapsulation 2. Hub and spoke ESB topology Pro: Can integrate with all legacy systems even some that require very low latency, supports central unified message protocol, will only adjust abnormalities on local level and supports universal encapsulation Con: Additional ESBs require added maintenance and higher implementation costs

3. Distributed ESB topology Pro: All parts of the ESB run on instances, thus the solution is very scalable, new components can be deployed rapidly and extreme flexible ESB life cycle development Con: Extrema high administration overhead & difficulties with work flow, BPEL and RBMS

In the part I will then look at some of the market participant as reported by by analysts as there are

WebSphere Message Broker WebSphere Enterprise Service Bus (and WebSphere Process Server) WebSphere DataPower Integration Appliance XI50 IONA Artix IONA Fuse JBoss Enterprise SOA Platform, which includes JBoss ESB MS BizTalk Mule Enterprise Oracle Service Bus (OSB) Sonic ESB webMethods ESB Platform Sun Enterprise Service Bus Suite TIBCO Rendevouz

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