Predictive text
Predictive text is an input technology most commonly used on mobile phones, and for accessibility. The technology allows some common words to be entered by a single keypress for each letter, as opposed to the multiple keypress approach used in the older generation of mobile phones. The intent is to simplify the writing of text messages, e-mail, entries into an address book or calendar, and the like. The number of keystrokes per character, on average, is comparable to using a Qwerty keyboard, provided that all words used (including all slang, proper nouns, abbreviations, urls, foreign-language words and so on) are in the dictionary (for dictionary-based methods), that no spelling mistakes or typing mistakes are made, and that punctuation is ignored [1]. Short message service (SMS) permits a mobile phone user to send text messages, (also called messages, SMSes, texts, and txts) as a short message. The most common system of SMS text input is referred to as “multi-tap”.
