Thanks for the replies, what about OpenSymphony
OSWorkflow, JBPM and Twister (I had these three
candidates and a brief study on them before
recomandation Enhyrda Shark by the friends). Does any
body has evaluated advantages or disadvantages of
using each solution experientially? advantages such as
being easily integrated in real business projects and
having enough flexibility to meet needs for the most
kind of applications. and what are benefits of using
shark compare to other ones?