Essay --

NAME SHASHEEN POTHULAUMID 177261161.) Zhai and Kristensson bring out five motivating principles for their design. Consider T-9 stimulant for entering text on a cell ph cardinal keypad, in predictive text mode. How would a proponent of T-9 address these principles? Do completely apply?Text stimulation constitutes one of the most frequent computer substance abuser tasks. Several input techniques were developed from QWERTY keyboard to the hand writing recognition systems and the virtual keyboards, but all of them have limitations.Shumin Zhai and Per-Ola Kristensson have proposed in their paper a new regularity that can help in fast typing for large vocabulary. They named their mode chisel which is stand for shorthand aided rapid keyboarding. This method basically offered writing on keyboard by identifying the typing gestures. It also defines and recognizes a symbol for each word by the way of movement pattern that it has been typed without tapeline on letters. The key five mot ivating principles involved in SHARK design areScale and location independencyEfficiency intensityZipfs law effectTransition from tapping to gesturingPredictive text admission is utilize to try to predict the word a user is typing before they nish entering all its characters. One or more predictions are normally presented to the user as they type, allowing them to select a correct plectron before they nish entering their word. When successful, predictive text entry can mitigate both speed and accuracy. T9 short for Text on 9 keyswas one of the rst predictive text methods, used on feature phones with a repress pad, where each number corresponds to multiple letters, identical to the number-to-letter mapping used on traditional landline phones. Prior to T9, users would e... ...ctive to learning stylus keyboarding although the rate of expanding upon and the unit of training in stylus keyboarding needed further investigation. fixity writing is an old research topic with renewed i nterest repayable to the need of using mobile computing devices. To write a authoritative amount of text, naturalwriting is too slow and stylus keyboarding is thudding and visually demanding. Usually there are two types of classes namely tyro and experts. The novice users may find a little difficult to discover the gestures but the experts does not feel so. But in the case of SHARK, correct the novice users were able to memorize and started using the gestures with in less sentence and the number of words typed per minute increased drastically. By this we can prescribe that SHARK can be used by every user with less hard work and it is one of the best human interfaces used for words typing.