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MODELING AND AUTHORING OF XR APPLICATIONS
Master Thesis in Human-Computer Interaction & Design
Politecnico di Milano
October 7th, 2021
XRM Model
Conceptual Model
The XRM Model is a theoretical approach oriented towards the conceptualisation of XR experiences, developed from a comparative study of existing models in the literature. The XRM Conceptual Model stems from the need to provide a tool capable of covering most of all the technologies included in the Virtual Continuum. We found the design features of XR that are fundamental to the development of XR applications and that can be modelled by structural, behavioural and interaction properties.
What I did
- Literature Review
- Concept Design with Miro
- Conceptual Modeling
- Protyping with iPad
- Visual Design with Sketch
ART Editor
Authoring tool
The ART Framework is a project funded by EIT Digital in collaboration with Politecnico di Milano, Fifthingenium S.r.l.s., Technische Universität Berlin and TIM that aims at creating an Extended Reality as a Service (XRaaS) platform to enhance tourism in places with a high historical, cultural and artistic value. The system architecture of the ART XRaaS is composed by different modules, each reflecting a phase of the creation process of an XR experience. The ART Editor is ART Framework's module involved in the interaction authoring phase. It is based on the XRM conceptual-model and it allows to design the model of XR experiences. Furthermore, the model was validated in a usability test with users based on the ISO 9241-11 standard.
Technological choices:
- WebApp written in HTML, CSS and JavaScript
- GoJS framework allows to build interactive diagrams
- Exportable JSON configuration file
XRM Model Definition Process
Phase 1: Identification in literature of XR main components and gestures.
Phase 2: Overview of XR main components and gestures.
Phase 3: Refined overview of XR main components and gestures.
The aim of the XRM Model is to create a means to enable high-level development of XR applications, in order to involve also non-experts in the domain.
The XRM Conceptual Model is divided into three parts: Structural Model, Behaviourl Model and Interaction Model.
ART Editor Definition Process
ART Phase 1: Table of the possible combinations of Objects, Actions and Effects.
ART Phase 2: Diagram of the possible combinations of Objects, Actions and Effects.
ART Phase 3: Low level and High level Design of Objects, Actions and Effects.
ART Phase 4: Testing of the ART Editor throug a real case study, NURE (1).
ART Phase 4: Testing of the ART Editor throug a real case study, NURE (2).
Case Study
NURE Case Study: A Mixed Reality Musealization project of an archaeological area
NURE Case Study: A Mixed Reality Musealization project of an archaeological area
NURE Case Study: A Mixed Reality Musealization project of an archaeological area
NURE Case Study: A Mixed Reality Musealization project of an archaeological area
NURE Case Study: A Mixed Reality Musealization project of an archaeological area
NURE Case Study: A Mixed Reality Musealization project of an archaeological area
NURE Case Study: A Mixed Reality Musealization project of an archaeological area
NURE Case Study: A Mixed Reality Musealization project of an archaeological area
NURE Case Study: A Mixed Reality Musealization project of an archaeological area
Usability Evaluation
Usability Evaluation: Quantitative Metrics.
Usability Evaluation: Procedure.
Usability Evaluation: Results.
Usability Evaluation: Effectivness.
Usability Evaluation: Efficiency.
Usability Evaluation: Performance Effectivness/Efficiency.