This paper presents the user requirement elicitation process in order to design and develop a new innovative framework to support smart manufacturing quality assurance. More specifically, this framework will provide an IoT-based Reliable Industrial Data Services (RIDS), a complete suite consisting of innovative i4Q Solutions, able to handle a vast amount of data collected by industries. This framework assures the reliability of collected data in five basic stages of the data cycle: sensing, communication, computing infrastructure, storage, analysis, and optimization. The RIDS proposed in this framework include simulation and optimization tools for the continuous process qualification of the manufacturing line, for quality diagnosis, reconfiguration, and certification for ensuring high manufacturing efficiency, leading to an integrated approach to zero-defect manufacturing. This paper presents the requirements engineering approach of the i4Q framework.