Distributed Collaborative Workflows Research

Workflow technique is a core technique which implements modeling, optimization, management, integration and automatization of enterprise business process. At present, many workflow management systems (WFMS) have deficiencies in their capabilities (i.e. throughput) for handling tasks, which handicap the wide application of WFMS. This paper discusses the collaboration and the load balancing technique for distributed collaborative workflow management system (DCWFMS). Firstly, load index is defined to measure the load levels of a workflow engine. Then an architecture for distributed collaborative workflows with load balancing manager is presented. According to business logic, a load balancing scheduling algorithm for DCWFMS is proposed. The experimental results show that the DCWFMS presented in this paper has high-throughput compared to the single-engine WFMS.This paper deals with modeling and analysis of the Load balancing based on DCWFLB. A Timed Coloured Petri Net model (TCPN model) suited for performance and behavioural analysis of DCWFLB is presented. The TCPN model covers business process information and the load balancing schedule method. By means of simulations and occurrence graph analysis of the CPN model, this paper investigates the validation of load balancing model.