holds diploma, doctoral and habilitation degrees in computer science from RWTH Aachen University. He leads the research group advanced community information systems (ACIS) at the information systems chair, RWTH Aachen University. He is known for his work in major projects for Technology Enhanced Learning (PROLEARN, GALA, ROLE, Learning Layers, TELMAP, Tellnet, CUELC, SAGE, BOOST, VIRTUS, WEKIT and tech4comp). Ralf organized doctoral summer schools & conferences in Technology Enhanced Learning, Web Engineering and Social Network Analysis. He published more than 200 scientific papers. He is on the editorial board of Social Network Analysis and Mining (SNAM) and IxD&A. His research interests are community information systems, serious games, augmented reality, web engineering, social network analysis, requirements engineering and technology enhanced learning.
last update: October 2019
Articles published on IXD&A:
"User satisfaction determines the quality of a product idea. Yet it is hard to accomplish when designers are isolated from their users, creating a gap in the design practices. Co-design seeks to meet t..."
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