Many specified business needs in enterprise context cannot be effectively satisfied using current business process technology.This phenomenon is called the “long tail” of business processes.In addition,more and more business applications need to be accessed from mobile devices such as smartphones by enterprise end users.This paper attempts to solve both two challenges above.A lightweight event-driven process model is proposed aiming at satisfying the spontaneous business needs in enterprise.And we design an innovative wizard,which works like a tutorial,guiding end users in creating this lightweight process model.Moreover,end users are allowed to interact with the process created by themselves on smartphones.Finally,the usability of our approach was evaluated on a small set of users in a real business scenario.The results show that end users can effectively build their personalized business processes using our approach and interact with them in mobile environment. Many specified business needs in enterprise context can not be effectively satisfied using current business process technology. This phenomenon is called “long tail” of business processes.In addition, more and more business applications need to be accessed from mobile devices such as smartphones by enterprise end users. This paper attempts to solve both two challenges above. A lightweight event-driven process model is proposed aiming at satisfying the spontaneous business needs in enterprise. And we design an innovative wizard, which works like a tutorial, guiding end users in creating this lightweight process model.Moreover, end users are allowed to interact with the process created by themselves on smartphones. Finally, the usability of our approach was evaluated on a small set of users in a real business scenario. The results show that end users can effectively build their personalized business processes using our approach and interact with them in mobile environment.