摘要：The paper presents a case study of joint implementation of the reengineering method of the compute-rised activities and the method of user interface engineering. The case study represents the general principles of reengineering process of the computerised activity into the e-business activity with the user interface. The analysis and design phases of the reengineering method are discussed in detail. At the end of the paper, the examples and general principles of developing of the task-dialog model for e-business “E-order” user interface is presented.
