Design And Implementation Of ERP Purchasing Contract Management System Based On Opentaps Framework

The research content of the subject is the design and implementation of the ERP purchasing contract management system of a company.The company decided to redevelop the ERP system in order to better manage the resource information of the enterprise.Purchasing contract management is an important part of the production and supply process.The subject is developed in this context.The company's original ERP system is difficult to deploy,expand and maintain.The new B/S mode ERP system is based on the Opentaps architecture.The system introduces the design idea of the domain model to separate the business modules and improve the maintainability of the system.The system architecture is divided into four layers,which are the interface layer,the application layer,the domain layer and the infrastructure layer.The first step is to analyze the requirements of the system.Secondly,the four layers of the architecture of the system are analyzed and designed to improve the characteristics of the system,such as simplicity,operating the system easily,user-friendliness and expanding and maintaining the system easily.Finally,the architecture of the system,the front-end and back-end functions,the data interaction of front-end and back-end,and the back-end common modules were implemented.The front-end part is implemented by Ext JS technology and some front-end display details are optimized.The full-text indexing technology is introduced to implement the keyword search function.The purchasing contract management system meets the requirements of the business of the company.The interface of the system is more comfortable and the user experience is better by using of front-end Ext JS technology.At the same time,the system is more reusable,extensile and maintainable because of the introduction of the Opentaps framework that introduces the idea of domain model.