Manufacturing companies aspiring to adopt digitization in their production are increasingly required to make the best selection that would align with their sustainability goals. This research tackles a case study in a small and medium enterprise (SME) with the aim to assess the adoption of digital technology by mapping the relation between selected key performance indicators and the digitization technologies. The effects of the digitization technology regarding information flow in the value streams were studied while generating the digital value stream map. The study has mapped the effects of Industry 4.0 tools on selected KPIs to identify the most suited I4.0 tools for the SME considered. Accordingly, the projected production lead time in this SME has dropped from 654 hours (current state) to 290.16 hours (future state). The leanness score (another metric considered) has improved from 0.41 to 0.57. This research work can be helpful to decision makers who are planning to implement digitization into their production processes and hence proceed towards reaping the benefits of Industry 4.0.