ERP selection with multi-criteria decision-making methodsand expert system implementation

A company who decides to use an ERP application or wants to change his existing ERP program should choose an ERP system in the sector? What are the major points that an enterprise should be aware of before choosing the ERP program? Which ERP package provides the functions required by enterprise? The mission of this document is to find the best answers of those questions with the help of academic studies and multi-criteria decision- making methods. Eight ERP packages are existing in our country; 6 foreign programs (Infor ERP Ln, SAP, IFS, Microsoft, Canias, Oracle) and the 2 local programs (Netsis, Logo) were evaluated by approximately 2000 questions. Using a questionnaire about inventory, warehouse, purchase, sales, production, project, accounting, cost accounting, inline with new Turkish Commercial Law, maintenance and service modules and software technology, license and maintenance costs and implementation period, it is tried to determine to what extend ERP packages can provide the requested functions. After the analysis with approximately 600 questions, TOPSIS, a decision technique with many measures, was used to help the company which is trying to select the most suitable ERP application.