Event driven architectureEDA and Service Oriented Architecture SOA

[reachyeruva]

What are some of the key differences between EDA and SOA? Can both of the architectures co-exist (be leveraged) while building systems? What are the strengths of each? All possible comments will be appreciated.

Thanks much,
Srinivas Yeruva

[Yemi_Bedu]

Hello,

This has been covered a bit here:
SOA and EDA is most direct to some of what you want to know.
Why pub/sub is cool tells of implementable facilities that follow the patterns.

Hopefully those posts can be added to with new information. Good day.

Yemi Bedu

[reachyeruva]

Those were pretty good threads. Thanks for directing me to those specific ones. In the EAI context, when an application can invoke a flow service directly through the http invoke (which does some pre-processing and publishes a document to Broker) with the request data, what is the justification for it to consume the same flow service as a web service? What is the value add? What does a web service bring to the table in this context?

Thanks,
Srinivas

[Yemi_Bedu]

Hello,

The direct execute on the flow service did not happen by way of a WSDL. So you don’t have any previous contract to work with to say “This is how you said you will accept my data and return results”. So you are working a little blind. You also will not have common ground for some extra features like a channel for discovery (UDDI). You may not be sure or the transport protocol (HTTP, RPC, RAW over TCP). So it works like how we have xml with a dtd or a xmlschema. That helps to make interoperable use with no head work. I see this when a use a WSDL for a flow service backend through ASP.NET front-end. Good day.

Yemi Bedu