Việc thực hiện quy trình làm việc dựa trên sự phát triển của một mô hình hợp lý và một mô hình vật lý có kết hợp các đặc điểm của quá trình kinh doanh, các sản phẩm ban hành quy trình làm việc, cơ sở hạ tầng máy tính, và lực lượng lao động sẽ thực hiện các nhiệm vụ. | Description The workflow implementation is based on the development of a logical model and a physical model that incorporate the characteristics of the business process workflow enactment products the computing infrastructure and the workforce that will perform the tasks. The design of the models forms most of the activities in step 6. Once the models have been completed the remainder of the step is concerned with programming the workflow engine and testing the configuration using the scenarios. Task definition The first step in the development of the workflow models is the determination of the tasks that provide the fundamental unit of functionality for the workflow. The workflow is concerned only with the movement of information and control between tasks. It has knowledge of only the intertask environment and is not involved in the workings of the tasks themselves. For completeness it should be noted that it is possible for the tasks also to utilize a workflow approach for their internal implementation and for the two workflow services external and internal to the tasks to communicate with each other. That complexity does not change the basic approach and is considered to be beyond the scope of this discussion. Because the workflow is not concerned with the internals of the tasks initially each dialog can be considered to be a task. The issue then is to determine which tasks can be combined for the purpose of the workflow implementation. In making that determination it is useful to note two differences between tasks and dialogs Tasks can have more than one entry point. The particular entry point is selected by the workflow instance information available at task start time. Tasks can have more than one role performer. That means the transition between roles does not necessarily imply a timebreak and a given member of the workforce can perform multiple roles as required. Other characteristics generally are the same for both tasks and dialogs. If dialogs
