On designing and testing distributed virtual environments

Valadares, Arthur; Gabrielova, Eugenia; Lopes, Cristina Videira

doi:10.1002/cpe.3803

Cited by 9 publications

(3 citation statements)

References 69 publications

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“…Beyond entertainment, virtual collaborative environments have the potential to enhance skills training and productivity [27]. User experience is also highly important in virtual collaborative environments [65]. Although other researchers have created spatial skills training applications using immersive VR, as described in Section 2.2, we were not able to find any examples of such applications which leveraged a multi-user collaborative environment for this purpose.…”

Section: Multi-user Collaborative Applicationsmentioning

confidence: 98%

The Influence of Immersive and Collaborative Virtual Environments in Improving Spatial Skills

et al. 2023

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The use of Virtual Reality (VR) is growing in popularity in educational contexts. In this work, we present a novel software application based on immersive VR in which users can interact simultaneously with a model in a shared virtual scene and maintain audiovisual communication. The 3D model-building activity within the application was designed to improve spatial skills. Twenty-nine industrial engineering students completed the modeling activity in groups of two or three. Post-test scores showed significant improvement over pre-test scores for both spatial tests used to measure the effectiveness of the instrument in improving spatial skills. Participants rated the application favorably in terms of usability and functionality. Results suggest that spatial training in a collaborative immersive virtual environment has the potential to be an effective approach to improving spatial skills.

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Section: Multi-user Collaborative Applicationsmentioning

confidence: 98%

The Influence of Immersive and Collaborative Virtual Environments in Improving Spatial Skills

et al. 2023

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“…Debugging faults and errors in distributed systems is hard. There are many reasons for the inherent difficulty, and these have been extensively discussed in the literature [Beschastnikh et al 2016;Schütz 1994;Valadares et al 2016]. In particular, the non determinism of concurrent computation and communication makes it hard to reliably observe error conditions and failures that expose the bugs in the code.…”

Section: Introductionmentioning

confidence: 99%

GoTcha: an interactive debugger for GoT-based distributed systems

Achar

Dawn

Lopes

2019

Proceedings of the 2019 ACM SIGPLAN International Symposium on New Ideas, New Paradigms, and Reflections on Programming and Sof

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Debugging distributed systems is hard. Most of the techniques that have been developed for debugging such systems use either extensive model checking, or postmortem analysis of logs and traces. Interactive debugging is typically a tool that is only effective in single threaded and single process applications, and is rarely applied to distributed systems. While the live observation of state changes using interactive debuggers is effective, it comes with a host of problems in distributed scenarios. In this paper, we discuss the requirements an interactive debugger for distributed systems should meet, the role the underlying distributed model plays in facilitating the debugger, and the implementation of our interactive debugger: GoTcha.GoTcha is a browser based interactive debugger for distributed systems built on the Global Object Tracker (GoT) programming model. We show how the GoT model facilitates the debugger, and the features that the debugger can offer. We also demonstrate a typical debugging workflow.

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“…Distributed virtual environment [1] is one of the most important application fields of distributed simulation technology [2,3]. It consists of lots of subsystems on different nodes and constructs an interactive virtual world for geographical distributed users to support them carry out some activities such as military training, online games, and distance education in the virtual world.…”

Section: Introductionmentioning

confidence: 99%

An Interval Consistency Control Method to Meet Responsiveness Requirement in DVE Systems

Zhang¹,

Zhou²

2017

Proceedings of the 2016 International Conference on Engineering and Advanced Technology

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Abstract. In a distributed virtual environment (DVE) system, maintaining the consistency of each node is the key factor to preserve system usability. In addition, maintaining the responsiveness of users in the system is also an important factor affecting the users' interactive experience. Due to the trade-off between consistency and responsiveness, existing consistency control methods often ignore the responsiveness requirement, which makes them difficult to satisfy user's real needs. In this paper, we propose a new interval consistency control method that can effectively meet the requirements of system responsiveness. This method takes into account system consistency and responsiveness satisfaction degree simultaneously, and achieves an optimized balance of performance objectives of DVE system, thus effectively improving system usability. The experimental results proved the effectiveness of our method.

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On designing and testing distributed virtual environments

Cited by 9 publications

References 69 publications

The Influence of Immersive and Collaborative Virtual Environments in Improving Spatial Skills

The Influence of Immersive and Collaborative Virtual Environments in Improving Spatial Skills

GoTcha: an interactive debugger for GoT-based distributed systems

An Interval Consistency Control Method to Meet Responsiveness Requirement in DVE Systems

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