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Representations of equation-based models are not created equal

Pollok, Alexander and Klöckner, Andreas and Zimmer, Dirk (2017) Representations of equation-based models are not created equal. 8th International Workshop on Equation-Based Object-Oriented Languages and Tools, München, Deutschland.

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Abstract

For equation-based modelling languages, modelling experts have many degrees of freedom when building a model from scratch. One of the most basic choices the expert faces is the mode of representation. The same system can be represented for instance as a block-diagram, by writing down the physical equations, by writing an algorithm, or by graphically connecting ready-made subcomponents. To give some guidance in this aspect, an experiment was conducted to measure the effects of different representations on various tasks. Participants had to identify models and predict their transient response. Both the time to execute the task and the correctness of the answer were measured. Participants also had to rate their confidence regarding the models. Results showed that tasks were executed much faster for graphical representations than for block-digrams. Equation-based and algorithm-based models can be grouped in the middle. The same results hold for rated confidence. Interestingly, the amount of errors was similar for all representations. Apparently, modelling experts largely compensate for difficulty by taking their time.

Item URL in elib:https://elib.dlr.de/116676/
Document Type:Conference or Workshop Item (Speech)
Title:Representations of equation-based models are not created equal
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Pollok, Alexanderalexander.pollok (at) dlr.deUNSPECIFIED
Klöckner, Andreasandreas.kloeckner (at) dlr.deUNSPECIFIED
Zimmer, DirkDirk.Zimmer (at) dlr.deUNSPECIFIED
Date:2017
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:modelling, programming aids, coding style, psychology, software ergonomics, trial, experiment
Event Title:8th International Workshop on Equation-Based Object-Oriented Languages and Tools
Event Location:München, Deutschland
Event Type:international Conference
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:fixed-wing aircraft
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Systems and Cabin
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of System Dynamics and Control > Aircraft System Dynamics
Deposited By: Pollok, Dipl.-Ing. Alexander
Deposited On:07 Dec 2017 17:31
Last Modified:31 Jul 2019 20:14

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