This study represents mainly a compact literature review aiming at investigating research opportunities/needs in context of industrial systems. It explores the connections and integration of Industry 4.0 and Lean Manufacturing with the focus on a system view perspective instead of the focus on specific information technologies. Industry 4.0 offers a set of advanced technologies that can significantly enhance Lean Manufacturing methodologies, particularly in digitalizing Lean tools. By combining these two paradigms, businesses can leverage technological advancements to increase operational efficiency. The study focuses on examining the integration of Industry 4.0 and Lean Manufacturing, emphasizing the importance of a systematic approach. Lean provides a structured methodology that serves as the foundation for applying Industry 4.0 technologies in industrial settings. This research highlights the gaps in current research, demonstrating the need for a framework that combines the strengths of both paradigms. Moreover, this research focuses on developing an initial framework connecting both paradigms. Developing a further detailed framework that addresses the limitations of Industry 4.0 and can be applied in industrial settings would be a subject of interest in future research. This work aims to contribute to a deeper understanding of Industry 4.0, Lean Manufacturing, and the connections between them.