Hi, Thanks for all !! There is no lot of think, and I'm french, so, I can't understand all think !!! If I've understand well: - If I deploy process-definition with classes in the same file, the classes will be written in the database and will be use more speedly !! - If I deploy process-definition without classes but with the classes in the web-app "WEB-INF/Classes" folder, it became less speed, but, it possible to change only class file without redeploying process (impossible in the first case)... You confirm ?? If I deploy the classes in the process zip file and in the web-inf/classes folder ?? What are the classes which will be executed ?? Thank you... because I've lot of compréhension problem on this subject !! View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4073098#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...