Too simple an interface for frequent gamers. Problems: descriptive sounds overlapping if browsing from one element to next too quickly. Natural Language interface: special commands: Actions (list all possible actions), describe scene (lists settings and elements on the screen), help (hints and interaction instructions) Sonar System: Each interactive element emits a different sound, using 3d positional audio system, position of element relative to mouse causes different intensity (how close) and pitch (higher if nearby vertically, lower if further away vertically). Arrow keys to select between elements, enter for action, escape to go back) Game scenario changes, or interaction with objects or characters, triggers an audio message Implementation of accessibility features into eAdventure game authoring tool (used for creating 2d educational point-and-click adventures) Observation and exploration, puzzles to solve. Point and click adventure games often suitable to adapt. Time limits to do something, can make the game too difficult 3D Haptic feedback (something you can touch) via PHANToM device "Earcons", sounds that alert the user to an object or event. Substitute all visual stimuli by auditory feedback. , International Game Developers Association special interest group on accessibility Some possibilities include: keyboard navigation without mouse, sonar with mouse (good for regular gamers), conversational interface that interprets short commands in natural language (good for occasional gamers) There is not much by way of standards in this area yet. There is a demand for computer games that can be used by people with disabilities. Journal of Research and Practice in Information Technology, Vol. Marchiori, Pablo Moreno-Ger and Baltasar Fernández-Manjón, José Ángel Vallejo-Pinto, Manuel Ortega-Mora. Evaluation of Three Accessible Interfaces for Educational Point-and-Click Computer Games. Accessibility in computer games, with a focus on the blind Pull model is more suitable when traffic optimization is needed, whereby the watcher requests presence information from the person whose presence information is requested, only when they want to view it.ģ. Push model: when your presence information changes, it is pushed to the server, where it is transferred to the watchers.
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During working hours, presence information about co-workers might be more important than presence information about friends, so particular groups could have different update & retrieval rates for the information Pause publication of some parts of the presence information but not others, for example pause GPS (Global Positioning System) location publication but un-pause your "mood" Throttling (reducing) location update information if there is a lot of network traffic Different laptops could have different rates of updating their location presence information, for example a laptop with sensitive information may need to have its location tracked more often such as every hour Send only the presence information that has changed, not all of it During working hours, location could be requested less often since the person tends to stay in their office If presence attributes change more frequently, a presence server could request them more often from the client A person's states such as online, busy, idle Trigger instantaneous publication of presence attributes Poll presence attributes when publications are paused Pause and un-pause publication of presence attributes Event filters such as speed, entering or exiting a region, types of location (Mahy et al 2012) Other intermediate servers (Resource List Servers) updated with your presence information so main server (Presence Server) doesn't need to take the whole load of serving out presence information Minimum & maximum number of notifications for example one per second SIMPLE model for presence information (you can google this) Subscriber able to set rate of notifications, not just notifier Includes mobile devices (mobiles, tablets), as well as laptops 1, February 2014, Publications in Presence Service Overview and Optimization Techniques, Victoria Beltran and Josep Paradells JRPIT46.1.3.pdf” Journal of Research and Practice in Information Technology, Vol. (Microsoft Lync Server) now replaced by Skype for Business Presence Information is used in chat programs, for example whether you are online or not, and personal details such as your GPS location, mood, activities
Presence Information and issues regarding network traffic overload K-Nearest Neighbour Classification AlgorithmĢ. In future, I will post like this (with the text in the message) instead of a powerpoint presentation.ġ.
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