Essay --

NAME SHASHEEN POTHULAUMID 177261161.) Zhai and Kristensson identify five motivation principles for their design. Consider T-9 input for entrance textbook on a cubicle phone primevalpad, in predictive text mode. How would a proponent of T-9 quotation these principles? Do all apply?Text input constitutes one of the close frequent computer substance abuser tasks. Several input techniques were developed from QWERTY keyboard to the egest writing recognition systems and the virtual keyboards, but all of them gift limitations.Shumin Zhai and Per-Ola Kristensson have proposed in their paper a new method that drive out suspensor in fast typing for large vocabulary. They named their method SHARK which is cornerstone 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 excogitate by the way of movement pattern that it has been typed without taping on letters. The key five motivating principles involved in SHARK design argonScale and location independencyEfficiencyDurabilityZipfs legality effectTransition from tapping to gesturingPredictive text en taste is used to try to predict the word a user is typing before they nish entryway all its characters. One or more predictions are normally presented to the user as they type, allowing them to select a correct choice before they nish entering their word. When successful, predictive text entry can improve both repair and accuracy. T9 short for Text on 9 keyswas one of the rst predictive text methods, used on feature phones with a way out pad, where each number corresponds to multiple letters, identical to the number-to-letter mapping used on traditional land line phones. Prior to T9, users would e... ...ctive to learning stylus keyboarding although the rate of expansion and the unit of cultivation in stylus keyboarding needed further investigation.Speed writing is an honest-to-god research t opic with renewed interest due to the need of victimization mobile computing devices. To write a significant amount of text, infixedwriting is too slow and stylus keyboarding is tedious and visually demanding. usually there are two types of classes namely novice and experts. The novice users may find a little difficult to memorize the gestures but the experts does not feel so. But in the case of SHARK, even the novice users were adapted to memorize and started using the gestures with in less time and the number of linguistic process typed per minute increased drastically. By this we can say that SHARK can be used by every user with less big(p) work and it is one of the best human interfaces used for words typing.