Digital twins offer considerable benefits in monitoring and improving the functionality of the interconnected complex system in the manufacturing system. Nevertheless, the development of the DT in the industrial application often lacks integration with human actors which renders the performance of the production system vulnerable to human fatigue and human misjudgement. Moreover, the neglected human data as feedback to the DT system hinders the exploitation of human-machine partnership that takes human intelligence and flexibility into account. In seeing the necessity for human integration, as part of the work in DigiTOP project we developed a framework for human digital representation in an industrial DT.