SIMMI 4.0 - a maturity model for classifying the enterprise-wide it and software landscape focusing on Industry 4.0

The increasing digitalization of business and society leads to drastic changes within companies. Nearly all enterprises have to face enormous challenges when dealing with topics such as Industry 4.0/Industrial Internet. One of these challenges represents the realistic classification of the company's own IT infrastructure. In this paper we present a maturity model (SIMMI 4.0 - System Integration Maturity Model Industry 4.0) that enables a company to classify its IT system landscape with focus on Industry 4.0 requirements. SIMMI 4.0 consists of 5 stages. Each describes several characteristics of digitization, which allows a company to assess itself. Additionally, recommended activities are presented for each stage of digitization, which can enable a company to reach the next stage of maturity. We also present several possible topics for future research to improve and refine the developed maturity model.