Electronic Commerce with its advantages offered from the Internet to both the distributor and the customer, is growing faster than ever these days, and found its place to be the new designed Commerce Paradigm, raised as the means taking the lead of the national economy land society. The result proves that the diverse knowledge, occurring through the process of the establishment, is spread not only in the brain, but also in the diverse kinds of resources. With this research, we could find the waste of the resources and the controversial points occurred i when the developer do not use the methodology or the existing one. With the consideration and analysis on the Electronic Commerce and Workflow, We established the structure of the Electronic Commerce Workflow, developed the WfDM (Workflow Development Methodology) to build the model.