Intelligent and Flexible Worker Assistance Systems - Assembly Assistance Platform for Planning Assisted Assembly and Rework as Well as Execution of a Worker-Centered Assistance Topics: Agent-based Human-Computer-Interaction; Cognitive and Conceptual Models; Interactive Systems for Education and Training; Multimodal Systems and Application In Proceedings of the 13th International Joint Conference on Computer Vision, Imaging and Computer Graphics Theory and Applications - Volume 3 IVAPP: VISIGRAPP, 77-85, 2018 , Funchal, Madeira, Portugal