The Domain Modeling And Implementation Of Electric Company's Sales Module

In order to improve competitiveness and against the market demands most enterprise use advanced technology manage itself,such as use the ERP system.The ERP sale component has eight basic functions:basic data management,price management,product bidding management,Sales forecasting and planning management,quotation management,contract management,sales order management and delivery management.This component has many function and the rules vary frequent.every time the changes of rule will lead the changes in the code.In order to reduce the impact of code modifications on the entire ERP system this paper use domain driven design pattern to capture sales component's business rules.encapsulate the business rules in a separate domain layer,so the rules are cohesive and easy to modify.Then according the domain model to develop the software.the sales component's implementation is based on opentaps.opentaps is a open source ERP software,which is development based on ofbiz framework and the framework has same useful function,such as: entity engine,service engine,message engine.develop software in this way we could achieve all the benefit of opentaps,and shorten the development time,reduce costs.Through coding implemented the sales model of erp system.and through test confirmed the system fully meet the business rules.and can effectively response and sales related logistics, capital flow, information flow.This system can provide decision support for decision making.