6533b85efe1ef96bd12bf3de
RESEARCH PRODUCT
A DGS gesture dictionary for modelling on mobile devices
Seiji IsotaniHelena Macedo ReisDanilo AlvaresAnarosa A. F. BrandãoLeônidas De Oliveira Brandãosubject
USABILIDADE DE SOFTWAREInformationSystems_INFORMATIONINTERFACESANDPRESENTATION(e.g.HCI)Computer sciencebusiness.industry05 social sciences050301 educationComputer-Assisted InstructionInteraction modelUsabilityData_CODINGANDINFORMATIONTHEORYComputer Science ApplicationsEducationKernel (image processing)Learning curveHuman–computer interaction0501 psychology and cognitive sciencesHeuristicsbusiness0503 educationMobile device050107 human factorsGesturedescription
ABSTRACTInteractive or Dynamic Geometry System (DGS) is a tool that help to teach and learn geometry using a computer-based interactive environment. Traditionally, the interaction with DGS is based on keyboard and mouse events where the functionalities are accessed using a menu of icons. Nevertheless, recent findings suggest that such a traditional model of interaction has a steep learning curve and is inadequate to develop DGS for devices with multi-touch screens. Thus, we propose a new interaction model for DGS based on a gesture dictionary which enables the construction and manipulation of geometric objects without the need of accessing a menu of icons. The dictionary is divided into three types: (i) kernel gestures: which are the basis for defining gestures; (ii) navigation gestures: related to the manipulation and editing of geometric objects; and (iii) basic gestures of construction: to construct geometric objects. To validate our interaction model, a DGS for mobile device, GeoTouch, has been develo...
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2017-06-12 |