Interaction with rapid development of information technology and progress in modern production management science has emerged. In this respect, ERP (Enterprise Resource Planning) and Lean Manufacturing applications are important not only for big companies but also for Small and Medium Size Enterprises (SMEs) to become more competitive. The aim of this study is to analyze the maturity levels of Turkish SMEs on ERP systems and Lean Manufacturing applications. A questionnaire is prepared and applied to White goods enterprises (mostly subcontractors). The derived correlation between these two main function areas is also used to design such new systems. Additionally, ERP and Lean Manufacturing concepts are analyzed together in questionnaire which is applied by regular visits to facilities. Hence, related performance model also gives information about effects of each performance on one another.