centre for virtual patients
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Centre for Virtual Patients. Time And Effort Of Repurposing Virtual Patients From CASUS To CAMPUS Using The eViP Standard: Automated Vs. Manual Transfer. Benjamin Hanebeck 1 ; Stephan Oberle 1 ; Jörn Heid 2 ; Frank Hess 2 ; Inga Hege 3 ; Martin Fischer 4 ; Martin Haag 2 ; Sören Huwendiek 1 - PowerPoint PPT PresentationTRANSCRIPT
Time And Effort Of Repurposing Virtual Patients From CASUS To CAMPUS Using
The eViP Standard: Automated Vs. Manual Transfer
Centre for Virtual Patients
Benjamin Hanebeck1; Stephan Oberle1; Jörn Heid2; Frank Hess2; Inga Hege3; Martin Fischer4; Martin Haag2; Sören Huwendiek1
1Department of General Paediatrics, University Hospital for Adolescent and Paediatric Medicine and Centre for Virtual Patients, Medical Faculty of Heidelberg University, Heidelberg, Germany ; 2Centre for Virtual Patients, Medical Faculty of Heidelberg
University, Heidelberg, Germany ; 3Ludwig-Maximilians-University München, Germany ; 4University Witten-Herdecke, Germany
2nd International Conference on Virtual Patients & MedBiquitous Annual Conference, 28.04.2010
Introduction
• Developing new virtual patients (VP) is costly• Repurposing existing VP is a reasonable means
to save resources
• However, transfer of VP between different VP systems is complicated
Centre for Virtual Patients
Introduction• VP Standard was established:
Medbiq VP taken as part of the eViP-standard as a shared structure
• System specific features can be covered by extensions– QTI extension for knowledge-questions– ...
Additionally, a repurposed VP needs to be adapted to local needs (content, scenario)
Centre for Virtual Patients
Introduction
• Efforts, boundaries and benefits of using the eViP-standard to transfer a VP from one VP-system to another are, as yet, unreported.
• Does the standard reduce efforts by enabling automatic repurposing?
Centre for Virtual Patients
Introduction
• Efforts, boundaries and benefits of using the eViP-standard to transfer a VP from one VP-system to another are, as yet, unreported.
• Does the standard reduce efforts by enabling automatic repurposing?
Centre for Virtual Patients
Methods• Development of a new CAMPUS player
component enables playback of eViP-Standard-compliant material
Centre for Virtual Patients
Methods
Modification of the CAMPUS authoring component to enable
• …import of eViP-Standard compliant VP with QTI
support• … editing of the imported VP
Centre for Virtual Patients
Methods
• Choice of an appropriate VP-System for VP exchange / automated repurposing
• CASUS and CAMPUS – linear VP structures – QTI extension
• Selection of 15 VP from CASUS
in average 17,7 cards/VP (± 6,2)
Centre for Virtual Patients
Methods - Manual repurposing
• A new blank CAMPUS VP was created • The content was copied manually from the
existing CASUS VP into the CAMPUS authoring component
• Question were recreated where possible, Media was embedded
• Efforts were noted by using the eViP effort sheet
Centre for Virtual Patients
Methods - Automated repurposing• An eViP-Standard compliant export of the
CASUS VP was imported into the CAMPUS authoring component
Centre for Virtual Patients
• Playback and check of the VP• Corrections were made where necessary
• Efforts were noted manually
• In all cases of manual and automatic import: No efforts for content adaption were taken into account
Centre for Virtual Patients
Methods - Automated repurposing
Results – Automated repurposing: Issues
Centre for Virtual Patients
Problems:
• Hyperlinks imported incorrectly
(concerning CASUS Expert Network, links to videos, external resources…)
• Some questions displayed incorrectly (e.g. sorting task)
• Layout problems (e.g. different font types)
• Labels of pictures not displayed
Solutions: Manual corrections
Boundaries
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• Originating VP has to be eViP-Standard compliant
• As many extensions as possible should be shared between the used VP systems (e.g. QTI)
• Results were achieved with easy repurposing approach (linear pathway, QTI extension, same language)
• Efforts increase with differences between VP systems (e.g. linear vs. branched)
Benefits
Centre for Virtual Patients
• Repurposing VP is a lot more time efficient by using an automated import
• Only little corrections necessary
• Adaptations / extension of content in target VP system possible
• Improving of export/import-functionalities continuously increases quality of interoperability
Conclusion
Centre for Virtual Patients
• Repurposing VP using the eViP-standard can save time and efforts
• Not completely automated but semi-automated repurposing process
+
Results – automated repurposing: Problems and Solutions
Centre for Virtual Patients
Problem Solution
Duplicated questions (double import)
Manual deletion
External links did not work (e.g. videos)
Manual integration
Answers to questions were doubled
Manual correction
Introduction
• Remaining problem:– Teaching content sometimes differs not only
internationally but also nationally – Often an identical reproduction of a VP is not
satisfactory for teachers
• Need:
No playback-only solution, but possibilities to edit and adapt a VP
Centre for Virtual Patients
Results – manual repurposing: Problems and Solutions
Centre for Virtual Patients
Missing question types
• Problem: some types are not natively supported by CAMPUS authoring component (e.g. rating of symptoms, sorting tasks)
• Solution:
• manual substitution by an available question type (e.g. MCQ, free text) covering the same content
• manual creation of an interactive graphic based on Flash using an editor implemented in CAMPUS