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Cartographic design and the space–time cube / Irma Kveladze in Cartographic journal (the), Vol 56 n° 1 (February 2019)  

Public [article]  inCartographic journal (the) > Vol 56 n° 1 (February 2019) . - pp 73 - 90 Titre : Cartographic design and the space–time cube Type de document : Article/Communication Auteurs : Irma Kveladze, Auteur ; Menno-Jan Kraak, Auteur ; Corné P.J.M. Van Elzakker, Auteur Année de publication : 2019 Article en page(s) : pp 73 - 90 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Termes IGN] convivialité [Termes IGN] couleur (rédaction cartographique) [Termes IGN] cube espace-temps [Termes IGN] estompage en fonction de l'éloignement [Termes IGN] information complexe [Termes IGN] oculométrie [Termes IGN] taille (variable visuelle) [Termes IGN] variable visuelle [Vedettes matières IGN] Géovisualisation Résumé : (Auteur) This paper reports on the results of an empirical evaluation that aimed to define the effectiveness and efficiency of different visual variables in depicting the Space–Time Cube’s (STC) content. Existing STC applications demonstrate that the most used visual variables are size and colour hue. Less is known, however, about their usability metrics. The research sets design criteria for STC contents, such as space–time paths, based on the cartographic design theory. The visual variables colour hue, colour value, colour saturation, size and orientation have been applied in two different use case studies. Besides, to support the three-dimensional visual environment, depth cues such as shading and transparency were considered too. User tests have been executed based on real-world problems with particular attention for the visualization strategy and data complexity. The outcomes revealed the most efficient and effective visual variables to represent data of various complexities in the STC. Numéro de notice : A2019-449 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1080/00087041.2018.1495898 Date de publication en ligne : 13/12/2018 En ligne : https://doi.org/10.1080/00087041.2018.1495898 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=92796 [article]

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An investigation into challenges experienced when route planning, navigating and wayfinding / Erin Koletsis in International journal of cartography, vol 3 n° 1 (June 2017)  

Public [article]  inInternational journal of cartography > vol 3 n° 1 (June 2017) . - pp 4 - 18 Titre : An investigation into challenges experienced when route planning, navigating and wayfinding Type de document : Article/Communication Auteurs : Erin Koletsis, Auteur ; Corné P.J.M. Van Elzakker, Auteur ; Menno-Jan Kraak, Auteur ; et al., Auteur Année de publication : 2017 Article en page(s) : pp 4 - 18 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Termes IGN] itinéraire [Termes IGN] lecture de carte [Termes IGN] raisonnement spatial [Termes IGN] représentation mentale spatiale [Termes IGN] test de performance [Termes IGN] utilisateur civil [Vedettes matières IGN] Cartologie Résumé : (Auteur) Some map users still experience difficulties when attempting to route plan, navigate and/or wayfind. This paper provides information on the outcomes of a research project that aims to identify the nature of the difficulties/challenges these users experience. The paper draws on findings from studies of strategies used by novice and experienced map users, and users with poor spatial abilities, to identify the skills that those with poor spatial abilities or with little map reading experience lack. Data were collected using Tobii Pro Glasses 2 hardware and associated software. Fourteen participants walked between two predetermined locations while wearing eye-tracking glasses and speaking their thoughts aloud. The data collected in this study were analysed using quantitative and qualitative approaches. Analysis of the results shows three key findings for this particular group: looking at the map incessantly led to missed environmental cues; street names were not labelled at decision-making points on the map; and some individuals having poor spatial abilities prefer small-scale landmarks, for example, buildings with numbers to locate themselves, as opposed to using road names or larger landmarks. We argue that by considering these findings, map designs could be adjusted to meet the needs of map users with poor spatial abilities. Numéro de notice : A2017-316 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1080/23729333.2017.1300996 En ligne : http://dx.doi.org/10.1080/23729333.2017.1300996 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=85370 [article]

Overcoming challenges in developing more usable pedestrian navigation systems / Ioannis Delikostidis in Cartography and Geographic Information Science, Vol 43 n° 3 (June 2016)  

Public [article]  inCartography and Geographic Information Science > Vol 43 n° 3 (June 2016) . - pp 189 - 207 Titre : Overcoming challenges in developing more usable pedestrian navigation systems Type de document : Article/Communication Auteurs : Ioannis Delikostidis, Auteur ; Corné P.J.M. Van Elzakker, Auteur ; Menno-Jan Kraak, Auteur Année de publication : 2016 Article en page(s) : pp 189 - 207 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Navigation et positionnement [Termes IGN] conception orientée utilisateur [Termes IGN] évaluation [Termes IGN] implémentation (informatique) [Termes IGN] interface utilisateur [Termes IGN] milieu urbain [Termes IGN] navigation pédestre Résumé : (Auteur) This article presents an overview of a research project focusing on improving the usability of pedestrian navigation systems by following a User-Centered Design (UCD) approach. One of the main problems with those systems is how to adequately support and enhance the spatial interactions of a traveler to new urban areas, which is crucial for successful self-orienting and wayfinding. The methodology employed allows for conceptualizing, implementing and evaluating research prototypes that aim to satisfy the special user requirements. Outlined in this article are the techniques designed and integrated in the developed prototype, the methods used for their evaluation through field-based studies and the challenges encountered during this process. New techniques with a measurable impact on the effectiveness, efficiency and satisfaction of navigation were tested and found to dramatically enhance the sense of personal geo-identification in new places. Examples of those techniques are landmark visibility indication, multi-path routing based on time availability, multi-perspective landmark photos and reverse overview + detail maps. Overall, the outcomes of this research verify the capacity of UCD to help overcoming current usability issues with pedestrian navigation systems. By demonstrating an effective UCD methodology and discussing the lessons learned, we intend to aid the development of next generation navigation appliances. Numéro de notice : A2016-164 Affiliation des auteurs : non IGN Thématique : POSITIONNEMENT Nature : Article DOI : 10.1080/15230406.2015.1031180 En ligne : https://doi.org/10.1080/15230406.2015.1031180 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=80470 [article]

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Usability evaluation of centered time cartograms / Rehmat Ullah in Open geosciences, vol 8 n° 1 (January - July 2016)  

Public [article]  inOpen geosciences > vol 8 n° 1 (January - July 2016) . - pp 337 - 359 Titre : Usability evaluation of centered time cartograms Type de document : Article/Communication Auteurs : Rehmat Ullah, Auteur ; Eskedar Zelalem Mengistu, Auteur ; Corné P.J.M. Van Elzakker, Auteur ; Menno-Jan Kraak, Auteur Année de publication : 2016 Article en page(s) : pp 337 - 359 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Termes IGN] cartogramme [Termes IGN] convivialité [Termes IGN] oculométrie [Termes IGN] Pays-Bas [Termes IGN] réseau ferroviaire [Termes IGN] temps [Vedettes matières IGN] Géovisualisation Résumé : (auteur) A time cartogram visualizes travelling-times between locations. It replaces the geographic distance by time distance and distorts the underlyingmap accordingly. By distorting themap, time cartogramsmay give a more intuitive and clear picture of travelling-times. The distortion of the map, however, can make time cartograms harder to recognize and use. Although cartograms are becoming widespread in use, very little is known about their usability. This study focuses on the usability of centered time cartograms: time cartograms that visualize travellingtimes from a fixed starting location to other destinations in a region. We created several centered time cartograms to answer spatio-temporal questions related to the Dutch railway network. Two experiments were performed: a laboratory test and an online survey. In the laboratory test, we used eye-tracking, thinking aloud, and video-recording to compare four different designs of centered time cartograms to find out which one (or combination) of these performs better in answering spatiotemporal questions and thus, to establish a favorable design strategy for these cartograms. In the online survey, centered time cartograms were evaluated against a geographic and schematic map for accuracy, response time, and preference. The first experiment suggested that among various designs, the centered time cartogram with emphasized railroads is the most preferred design and the centered time cartogram without railroads is the least preferred. The second experiment indicated that overall, centered time cartograms perform better than the two other solutions in performing spatio-temporal tasks, particularly when the task has a dominant time-related component. Numéro de notice : A2016--069 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article DOI : 10.1515/geo-2016-0035 En ligne : https://doi.org/10.1515/geo-2016-0035 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=84415 [article]

The space-time cube as part of a GeoVisual analytics environment to support the understanding of movement data / Irma Kveladze in International journal of geographical information science IJGIS, vol 29 n° 11 (November 2015)  

Public [article]  inInternational journal of geographical information science IJGIS > vol 29 n° 11 (November 2015) . - pp 2001 - 2016 Titre : The space-time cube as part of a GeoVisual analytics environment to support the understanding of movement data Type de document : Article/Communication Auteurs : Irma Kveladze, Auteur ; Menno-Jan Kraak, Auteur ; Corné P.J.M. Van Elzakker, Auteur Année de publication : 2015 Article en page(s) : pp 2001 - 2016 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Analyse spatiale [Termes IGN] analyse géovisuelle [Termes IGN] application informatique [Termes IGN] cube espace-temps [Termes IGN] données spatiotemporelles [Termes IGN] représentation cartographique Résumé : (Auteur) This paper reports the results of an empirical usability experiment on the performance of the space-time cube in a GeoVisual analytics environment. It was developed to explore movement data based on the requirements of human geographers. The interactive environment consists of multiple coordinated views incorporating three graphical representations. For the experiment, two groups of the user, domain experts and non-domain experts, had to execute several map-use tasks to answers specific question. The data collected during the experiment were analysis resulting in a set of usability metrics related to the effectiveness, efficiency and user satisfaction of developed application. The comparison of both groups showed that domain experts were able to operate the visual analytical environment more effectively and efficiently due to their interest to explore their data. The user feedback derived from the analysis of both experiments was further processed for the improvement of the application. Numéro de notice : A2015-617 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1080/13658816.2015.1058386 En ligne : https://doi.org/10.1080/13658816.2015.1058386 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=78086 [article]

Testing the usability of OpenStreetMap's iD tool / Jan Behrens in Cartographic journal (the), Vol 52 n° 2 (May 2015)  

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Field-Based usability evaluation methodology for mobile geo-applications / Corné P.J.M. Van Elzakker in Cartographic journal (the), vol 45 n° 2 (May 2008)  

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