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http://Learning-Layers.eu
• Motivation
• Handling 3D objects in Web Browsers
• Near real-time collaborative manipulations of 3D objects
• Evaluation
• Conclusion & future work
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http://Learning-Layers.eu
• Emerging 3D technologies (3D scanners, printers..)– Web-based access and manipulation– Access to hard accessible/expensive resources– High quality digital representations of physical artifacts
• Support learning at scale– One to many, many to many (peer), one to one learning– Mix of personal and collaborative systems– Mix of informal and formal learning
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annotations
http://Learning-Layers.eu
• X3D – ISO (ISO/IEC IS 19775-1:2013) standard for 3D graphics handling– Emerged from Virtual Reality Modeling Language (VRML)
• x3dom – Native support of X3D in Web browser
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System Platform Domain Annotation Open Source
[Settapat et al., 2014] MVC Framework Virtual WorldsModern Pedagogy
no no
[Landro et al., 2014] Web portal Academic communities
no no
SmithsonianX3D Web-based Cultural Heritage yes no
3DSA Web-based Museums yes no
ToBoA-3D Web-based Dedicated Virtual Environments
yes no
• Web-based annotation systems available
• Open source libraries for 3D Web objects available
• BUT not together
http://Learning-Layers.eu
• Developed in EU projects (ROLE, Metis, Layers)
• Applied in Exploratory Teaching Space (ETS) at RWTH Aachen University together with hospital
• Anatomy 2.0 Web Platform for tutors and learners
– 3D object store
– Near real-time collaborative manipulation of 3D objects in the Web browser
– Lightweight persistent annotation of 3D objects
• Personal Learning Environments (PLE) Renzel, D., Klamma, R., Kravcik, M.,
Nussbaumer, A.: ”Tracing Self-Regulated Learning in Responsive Open Learning Environments”
– Designed for personalization, customization & adaptation
– Awareness among participants5
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• Dedicated Website
• Course creation and visualization
• 3D object upload
• Link to a Personal Learning Environment
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CommunitySpaceMembers
Widgets
Chat
HTLM5Content
Space
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• Widgets: 3D object store and 3D viewer widget• Annotation & shared handling supported in viewer• NRT collaboration enabled using XMPP protocol
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• Meso-level annotations (3D object level) [Cao et al. 2015]
• Knowledge exploitation– Highlight the non-obvious information– Disambiguate meaning– Reflection (collaborative scenario)
• Customizable and lightweight format
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• Microservice-based & widgetized
• Graph-basedannotation storage
• Open source & standard-based
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• Early results obtained from ETS blended learning project– Two study sessions– 24 medicinal student participants
• Target– Performance of annotations service– Usability of browser-based 3D objects
http://Learning-Layers.eu
• Lightweight approach for collaborative manipulation of 3D objects on the Web– Open source development– Textual annotation and near real-time mechanisms– Evaluated using anatomical objects with good results
• Know-how on fast prototyping of scalable technicalsolutions that can be succesfully used for learning
• Challenges– New ROLE SDK release to allow flexibility and easy
deployment/configuration in various learning settings– Integrate analytics using community monitoring and success
measuring– Commsonomy usage for learning purpose
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http://Learning-Layers.eu
nicolaescu, toubekis, [email protected]
Nicolaescu Petru
Anatomy 2.0 Project WebsiteGitHub: https://github.com/rwth-acis/
