Investment analysis needs to be conducted for determining whether investment projections are feasible to run. In order to reduce water loss, provide bills accurately, provide a quick solution for identifying pipe leaks, monitor water quality, read water usage in real time, and reduce potential errors in customer water meters, it is necessary for customers to replace their analog meters with smart meters. Therefore, this study aims to identify the important factors, actors, goals and the connection by using a systematic framework based on Soft System Methodology (SSM). This identification is used for decision making in the model field problem, with approaching of new technology and topics in Regional Drinking Water Companies (PDAMs).