WebSphere Process Server
WebSphere Process Server
(WPS), one of the WebSphere Business Process Management products, is IBM's flagship SOA products in WebSphere, one of the brands in the IBM Software Group.
Like WAS, WPS is a runtime for executing apps in production. WPS is built on WAS and implements SCA and SDO. Its corresponding development tooling is WebSphere Integration Developer.
I have a WBPM WPS WID thread
on my blog.
WebSphere Learning Resources lists places to learn about WebSphere products, including WPS.