scholarly journals Augmented Reality-Systeme zur Unterstützung der Workflow-Ausführung – Entwicklung und praktische Anwendung einer Taxonomie

Author(s):  
Johannes Damarowsky ◽  
Stephan Kühnel ◽  
Tobias Seyffarth ◽  
Stefan Sackmann

ZusammenfassungDie Ausführung von Workflows ist in vielen Anwendungsfeldern zunehmend mit einer Verarbeitung von Kontextinformationen verbunden. Dies ermöglicht es, den Nutzern die richtige Information zur richtigen Zeit zur Verfügung zu stellen, um die Workflow-Ausführung optimal zu unterstützen. Ein aktueller Ansatz, um eine kontextsensitive Unterstützung zu realisieren sind Augmented Reality-Systeme. Diese verarbeiten Kontextinformationen und liefern notwendige und hilfreiche Workflow-Informationen immersiv und intuitiv, um den Nutzer zu unterstützen und zu entlasten. Da sich die technischen Implementierungen in diesem Feld sehr unterschiedlich ausgestalten, wird in diesem Beitrag eine Taxonomie entwickelt, die es ermöglicht, Augmented Reality-Systeme einheitlich zu systematisieren. Mit dem resultierenden einheitlichen Vokabular bietet die Taxonomie eine praktisch nutzbare Grundlage, um state-of-the-art Augmented Reality-Systeme zu klassifizieren, Trends und Forschungslücken in der Literatur zu identifizieren sowie die Entwicklung neuer Augmented Reality-Systeme methodisch zu unterstützen. Für die Entwicklung der Taxonomie wurden insgesamt 142 Augmented Reality-Systeme analysiert, mit speziellem Hinblick auf die bereitgestellte Workflow-Unterstützung. Die wahrgenommene Nützlichkeit der Taxonomie wurde durch eine Befragung von Augmented Reality-System und Workflow-Management-Experten evaluiert. Zudem werden zwei neuartige Augmented Reality-Systeme, die innovative Ansätze für die Unterstützung der Workflow-Ausführung darstellen, als praktische Beispiele der Anwendung der Taxonomie vorgestellt.

Sensors ◽  
2021 ◽  
Vol 21 (9) ◽  
pp. 3061
Author(s):  
Alice Lo Valvo ◽  
Daniele Croce ◽  
Domenico Garlisi ◽  
Fabrizio Giuliano ◽  
Laura Giarré ◽  
...  

In recent years, we have assisted with an impressive advance in augmented reality systems and computer vision algorithms, based on image processing and artificial intelligence. Thanks to these technologies, mainstream smartphones are able to estimate their own motion in 3D space with high accuracy. In this paper, we exploit such technologies to support the autonomous mobility of people with visual disabilities, identifying pre-defined virtual paths and providing context information, reducing the distance between the digital and real worlds. In particular, we present ARIANNA+, an extension of ARIANNA, a system explicitly designed for visually impaired people for indoor and outdoor localization and navigation. While ARIANNA is based on the assumption that landmarks, such as QR codes, and physical paths (composed of colored tapes, painted lines, or tactile pavings) are deployed in the environment and recognized by the camera of a common smartphone, ARIANNA+ eliminates the need for any physical support thanks to the ARKit library, which we exploit to build a completely virtual path. Moreover, ARIANNA+ adds the possibility for the users to have enhanced interactions with the surrounding environment, through convolutional neural networks (CNNs) trained to recognize objects or buildings and enabling the possibility of accessing contents associated with them. By using a common smartphone as a mediation instrument with the environment, ARIANNA+ leverages augmented reality and machine learning for enhancing physical accessibility. The proposed system allows visually impaired people to easily navigate in indoor and outdoor scenarios simply by loading a previously recorded virtual path and providing automatic guidance along the route, through haptic, speech, and sound feedback.


2013 ◽  
Vol 60 (9) ◽  
pp. 2636-2644 ◽  
Author(s):  
Hussam Al-Deen Ashab ◽  
Victoria A. Lessoway ◽  
Siavash Khallaghi ◽  
Alexis Cheng ◽  
Robert Rohling ◽  
...  

1998 ◽  
Vol 08 (01) ◽  
pp. 21-66 ◽  
Author(s):  
W. M. P. VAN DER AALST

Workflow management promises a new solution to an age-old problem: controlling, monitoring, optimizing and supporting business processes. What is new about workflow management is the explicit representation of the business process logic which allows for computerized support. This paper discusses the use of Petri nets in the context of workflow management. Petri nets are an established tool for modeling and analyzing processes. On the one hand, Petri nets can be used as a design language for the specification of complex workflows. On the other hand, Petri net theory provides for powerful analysis techniques which can be used to verify the correctness of workflow procedures. This paper introduces workflow management as an application domain for Petri nets, presents state-of-the-art results with respect to the verification of workflows, and highlights some Petri-net-based workflow tools.


2009 ◽  
Vol 5 (4) ◽  
pp. 415-422 ◽  
Author(s):  
Ramesh Thoranaghatte ◽  
Jaime Garcia ◽  
Marco Caversaccio ◽  
Daniel Widmer ◽  
Miguel A. Gonzalez Ballester ◽  
...  

2018 ◽  
Vol 5 ◽  
Author(s):  
Kaj Helin ◽  
Timo Kuula ◽  
Carlo Vizzi ◽  
Jaakko Karjalainen ◽  
Alla Vovk

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