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CoRA: An Online Intelligent Tutoring System to Practice Coverability Graph Construction

  • Jan Martijn E. M. van der WerfEmail author
  • Lucas Steehouwer
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 11522)

Abstract

While teaching Petri nets, many students face difficulties in constructing coverability graphs from Petri nets. Providing students with individual feedback becomes infeasible in large classes.

In this paper, we present CoRA: the Coverability and Reachability graph Assistant. It is an online intelligent tutoring system designed to support users in constructing a coverability graph for a Petri net. Its main goal is to provide additional tutorial support to students, so they can practice on their own and ask questions to staff when required. CoRA is capable of giving personalized feedback; whenever a user submits a solution CoRA provides targeted feedback stating what is correct in what is not. CoRA’s feedback is designed to be both guiding and informational; a user should be able to understand what went wrong and how they can improve their graph.

Keywords

Petri nets Coverability graph Education Intelligent tutoring 

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Copyright information

© Springer Nature Switzerland AG 2019

Authors and Affiliations

  • Jan Martijn E. M. van der Werf
    • 1
    Email author
  • Lucas Steehouwer
    • 1
  1. 1.Department of Information and Computing ScienceUtrecht UniversityUtrechtThe Netherlands

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