Usability Testing of a Three-Dimensional Library Orientation Game

2016 ◽  
pp. 77-95
Author(s):  
Fatih Özdinç ◽  
Hakan Tüzün ◽  
Esin Ergün ◽  
Fatma Bayrak ◽  
Ayşe Kula
Keyword(s):  
Three Dimensional ◽  
Usability Testing

Scenario-based Group Usability Testing as a Mixed Methods Approach to the Evaluation of Three-Dimensional Virtual Learning Environments

2019 ◽  
Vol 58 (3) ◽  
pp. 616-639
Author(s):  
Andrina Granić ◽  
Jelena Nakić ◽  
Nikola Marangunić
Keyword(s):  
Mixed Methods ◽  
Learning Environments ◽  
Three Dimensional ◽  
Usability Testing ◽  
Virtual Learning ◽  
Virtual Learning Environments ◽  
Systematic Evaluation ◽  
Educational Value ◽  
Mixed Methods Approach ◽  
Insight Into

Although virtual reality became popular technology whose application is recognized in various domains, the field generally still lacks a widespread culture of usability. This is also evident when considering environments intended for learning, specifically virtual learning environments (VLEs). According to our findings, it is clear that there is a growing need for systematic evaluation approach to help with the design and development of usable learner-centered VLE solutions. After comprehensive introductory background and state of the art in the field, this article provides an insight into Scenario-based Group Usability Testing (ScerGUT), a mixed methods approach to the evaluation of three-dimensional VLEs which integrates several different methods of usability testing with measurements of educational value. While the majority of the existing work has made use of usually one single usability assessment technique, ScerGUT employs a number of methods putting in focus users and user testing. To examine efficiency and applicability of the approach, empirical validation is conducted as a case study of particular VLE. The contribution of the article is twofold: (a) ScerGUT as a mixed methods approach to the evaluation of VLEs, which brings new scientific value and could help other researchers and (b) ScerGUT’s application to a particular VLE, which brings quantitative and qualitative results, thus providing an insight into ease of use and educational value of specific VLE.

scholarly journals Methodological Challenges in Eye-Tracking based Usability Testing of 3-Dimensional Software – Presented via Experiences of Usability Tests of Four 3D Applications

2022 ◽  
Author(s):  
Mária Babicsné-Horváth ◽  
Károly Hercegfi
Keyword(s):  
Eye Tracking ◽  
Computer Aided Design ◽  
Three Dimensional ◽  
Usability Testing ◽  
Task Completion ◽  
Software Applications ◽  
3D Space ◽  
Usability Tests ◽  
Original Goal ◽  
Tracking Device

Eye-tracking based usability testing and User Experience (UX) research are widespread in the development processes of various types of software; however, there exist specific difficulties during usability tests of three-dimensional (3D) software. Analysing the screen records with gaze plots, heatmaps of fixations, and statistics of Areas of Interests (AOI), methodological problems occur when the participant wants to rotate, zoom, or move the 3D space. The data gained regarded the menu bar is mainly interpretable; however, the data regarded the 3D environment is hardly so, or not at all. Our research tested four software applications with the aforementioned problem in mind: ViveLab and Jack Digital Human Modelling (DHM) and ArchiCAD and CATIA Computer Aided Design (CAD) software. Our original goal was twofold. Firstly, with these usability tests, we aimed to identify issues in the software. Secondly, we tested the utility of a new methodology which was included in the tests. This paper summarizes the results on the methodology based on individual experiments with different software applications. One of the main ideas behind the methodology adopted is to tell the participants (during certain subtasks of the tests) not to move the 3D space while they perform the given tasks at a certain point in the usability test. During the experiments, we applied a Tobii eye-tracking device, and after the task completion, each participant was interviewed. Based on these experiences, the methodology appears to be both useful and applicable, and its visualisation techniques for one or more participants are interpretable.

scholarly journals Pengembangan Desain Interaktif 3D VR-Room Patient Menggunakan Unity 3D Engine Dan Evaluasi Usability Testing

2019 ◽  
Vol 4 (2) ◽  
pp. 79-87
Author(s):  
Rizqi Putri Nourma Budiarti ◽  
Fajar Annas Susanto ◽  
Bayu Kristianto ◽  
Paramitha Nerisafitra
Keyword(s):  
Three Dimensional ◽  
Usability Testing ◽  
Hospital Environment ◽  
Virtual Reality Technology ◽  
3D Technology ◽  
Average Value ◽  
Unity 3D ◽  
Room Design ◽  
Hospital Patients ◽  
3D Engine

The development of Virtual Reality technology is currently being developed even in every field of science, one of which is room mapping. Mapping digital space as a visualization medium has helped provide detailed information through the use of three-dimensional (3D) technology. To build a visualization of the room that is useful for the community, especially in the area of ​​the hospital environment, especially hospital patients so that in fighting the disease patients remain in a state of enthusiasm, safe, comfortable and conducive supported by the environment. With the use of 3D technology, in building an interactive room design VR-Room Patient using the Unity 3D Engine is expected to help patients in choosing treatment rooms for Inpatient Hospital. The planned room description is the Presidential Suite Room, Deluxe Suite, Junior Suite and Class II. The results of this study in the form of visualization illustrated by each area, while the evaluation of the results of this study was conducted by asking respondents to fill in an assessment questionnaire on VR visualization using usability testing using the usability heuristic approach, and the usability test results obtained with an average value of 3.194 taken from the assessment of respondents on a scale of 1 to 4 where this explains that the VR-Room Patient application has a good level of reusability ie the average value is above 3.

The orbit of Pluto over a long interval of time

1966 ◽  
Vol 25 ◽  
pp. 227-229 ◽  
Author(s):  
D. Brouwer
Keyword(s):  
Periodic Orbit ◽  
Numerical Integration ◽  
Restricted Problem ◽  
Three Dimensional ◽  
The Third ◽  
Circular Restricted Problem ◽  
Resonance Relation

The paper presents a summary of the results obtained by C. J. Cohen and E. C. Hubbard, who established by numerical integration that a resonance relation exists between the orbits of Neptune and Pluto. The problem may be explored further by approximating the motion of Pluto by that of a particle with negligible mass in the three-dimensional (circular) restricted problem. The mass of Pluto and the eccentricity of Neptune's orbit are ignored in this approximation. Significant features of the problem appear to be the presence of two critical arguments and the possibility that the orbit may be related to a periodic orbit of the third kind.

Conformation of Ribosomes from Escherichia Coli

1974 ◽  
Vol 32 ◽  
pp. 210-211
Author(s):  
M. Boublik ◽  
W. Hellmann ◽  
F. Jenkins
Keyword(s):  
Binding Sites ◽  
Ribosomal Proteins ◽  
Fluorescent Dyes ◽  
Protein Biosynthesis ◽  
Three Dimensional ◽  
Spatial Arrangement ◽  
Dimensional Structure ◽  
Complete Understanding ◽  
And Function

The present knowledge of the three-dimensional structure of ribosomes is far too limited to enable a complete understanding of the various roles which ribosomes play in protein biosynthesis. The spatial arrangement of proteins and ribonuclec acids in ribosomes can be analysed in many ways. Determination of binding sites for individual proteins on ribonuclec acid and locations of the mutual positions of proteins on the ribosome using labeling with fluorescent dyes, cross-linking reagents, neutron-diffraction or antibodies against ribosomal proteins seem to be most successful approaches. Structure and function of ribosomes can be correlated be depleting the complete ribosomes of some proteins to the functionally inactive core and by subsequent partial reconstitution in order to regain active ribosomal particles.

Ultrastructural Investigations of the Contractile Filaments of Amoebae

1974 ◽  
Vol 32 ◽  
pp. 188-189
Author(s):  
P.L. Moore
Keyword(s):  
Cytoplasmic Streaming ◽  
Three Dimensional ◽  
Freeze Fracture ◽  
Amoeboid Movement ◽  
Different Types ◽  
Chemical Conditions ◽  
Complete Interpretation

Previous freeze fracture results on the intact giant, amoeba Chaos carolinensis indicated the presence of a fibrillar arrangement of filaments within the cytoplasm. A complete interpretation of the three dimensional ultrastructure of these structures, and their possible role in amoeboid movement was not possible, since comparable results could not be obtained with conventional fixation of intact amoebae. Progress in interpreting the freeze fracture images of amoebae required a more thorough understanding of the different types of filaments present in amoebae, and of the ways in which they could be organized while remaining functional.The recent development of a calcium sensitive, demembranated, amoeboid model of Chaos carolinensis has made it possible to achieve a better understanding of such functional arrangements of amoeboid filaments. In these models the motility of demembranated cytoplasm can be controlled in vitro, and the chemical conditions necessary for contractility, and cytoplasmic streaming can be investigated. It is clear from these studies that “fibrils” exist in amoeboid models, and that they are capable of contracting along their length under conditions similar to those which cause contraction in vertebrate muscles.

Structural organization of escherichia coli ribosomes as determined by immuno electron microscopy

1978 ◽  
Vol 36 (2) ◽  
pp. 166-167 ◽  
Author(s):  
G. Stöffler ◽  
R.W. Bald ◽  
J. Dieckhoff ◽  
H. Eckhard ◽  
R. Lührmann ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Escherichia Coli ◽  
Ribosomal Proteins ◽  
Structural Organization ◽  
Three Dimensional ◽  
Ribosomal Subunit ◽  
Spatial Arrangement ◽  
Small Subunit ◽  
Antibody Binding ◽  
Immuno Electron Microscopy

A central step towards an understanding of the structure and function of the Escherichia coli ribosome, a large multicomponent assembly, is the elucidation of the spatial arrangement of its 54 proteins and its three rRNA molecules. The structural organization of ribosomal components has been investigated by a number of experimental approaches. Specific antibodies directed against each of the 54 ribosomal proteins of Escherichia coli have been performed to examine antibody-subunit complexes by electron microscopy. The position of the bound antibody, specific for a particular protein, can be determined; it indicates the location of the corresponding protein on the ribosomal surface.The three-dimensional distribution of each of the 21 small subunit proteins on the ribosomal surface has been determined by immuno electron microscopy: the 21 proteins have been found exposed with altogether 43 antibody binding sites. Each one of 12 proteins showed antibody binding at remote positions on the subunit surface, indicating highly extended conformations of the proteins concerned within the 30S ribosomal subunit; the remaining proteins are, however, not necessarily globular in shape (Fig. 1).

Ribosome Structural Organization

1974 ◽  
Vol 32 ◽  
pp. 332-333
Author(s):  
James A. Lake
Keyword(s):  
Ribosomal Proteins ◽  
Structural Organization ◽  
Three Dimensional ◽  
Small Subunit ◽  
Structural Studies ◽  
X Ray Diffraction ◽  
Specific Antibodies ◽  
X Ray ◽  
E Coli ◽  
Complete Sequences

The understanding of ribosome structure has advanced considerably in the last several years. Biochemists have characterized the constituent proteins and rRNA's of ribosomes. Complete sequences have been determined for some ribosomal proteins and specific antibodies have been prepared against all E. coli small subunit proteins. In addition, a number of naturally occuring systems of three dimensional ribosome crystals which are suitable for structural studies have been observed in eukaryotes. Although the crystals are, in general, too small for X-ray diffraction, their size is ideal for electron microscopy.

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