Pädagogische Psychologie » Forschung » Usability Evaluation

Usability Evaluation on Teaching and Applying Model-Driven Object Oriented Approaches for PLC Software

Teilprojekt von Modellbasierte Programmierung für verteilte Automatisierungssysteme (ModVar)

Beteiligte Institutionen:
Pädagogische Hochschule Weingarten
Technische Universität München

Prof. Dr. Karin Schweizer
Prof. Dr. Birgit Vogel-Heuser (TU München)

Fabian Jobst
Martin Obermeier (TU München)
Steven Braun (TU München)

11/2010 bis 10/2011

Bayerisches Staatsministerium für Wissenschaft, Forschung und Kunst und die Universität Bayern e.V.

Interdisziplinäres Verbundprojekt (Psychologie und Automatisierungstechnik)

In machine and plant automation, model-driven object oriented (oo) programming of Programmable Logic Controller (PLC) software is becoming an alternative to the state-of-the-art programming. The research group previously conducted experiments on the usability of the classic procedural paradigm (IEC 61131-3) compared to model-driven approaches for PLC programming, in particular Unified Modeling Language (UML) and domain specific modeling languages. Subsequently, this is the newest study on this issue, comparing state-of-the-art FDB (IEC 61131-3) programming approach to a model-driven UML supported approach. The design of the study, the influence of cognitive and motivational factors on the programming performance and the retrospective subjective ratings of the programming approaches applied were key responsibilities of the Weingarten research group. Finally, we show the study’s results and discuss our findings and their meaning for future experiments, concerning the complexity of the tasks required to develop a PLC-program, the influence of previous knowledge, and the realization of constant boundary conditions for experimental studies.