Insofar as the laws of mathematics are certain, they do not refer to reality; and insofar as they refer to reality, they are not certain. -- Albert Einstein

:: CLUE Lab ::


Computer Languages and User Experience Laboratory

Università degli Studi di Salerno
Dipartimento di Informatica
 

HCI on Mobile Devices

 

Objectives

The objective of this project is the study of methods and tools for the development of new forms of interactions for pen based systems (sketching), with applications to text entry on mobile devices.
In particular, we have proposed a new text entry approach based on soft keyboards and a study on its expected performances. The basic idea of the approach is to enhance the keyboard with a menu whose items (characters) can be selected more than once through a single pointer (pen, finger, etc.) stroke, in order to enter particularly frequent text patterns. The gesture to enter these patterns is similar to that used for Cirrin. Furthermore, using well-established methods for measuring the time required for performing simple interactions with pointers on touchscreens, we have evaluated the expected performances of our method. The results, obtained through a text entry simulation, are encouraging with respect to those measured for previous approaches based on menu-augmented keyboard.
 

Activities

In February - March 2010 we lead an experiment in order to test the speed and accuracy of users when using our new text-entry method. The experiment involved a software keyboard implemented on a Sympodium tablet. Results will be soon presented at a CHI Workshop next April. The experiment involved 6 students from our University (and not only from Computer Science) which we want to thank for their patience and also for their enthusiasm:
 
Giovanni Mastroianni
Angelica Chiaviello
Marco Ruggiero
Antonio Liguori
Domenico Depalo
Nicola Gravino 
 
Well,  they will also receive an ipod, thanks to our sponsor Unlimited Software.
 

Publications

Our recent Publications related to the project:

 

2009

  • Gennaro Costagliola, Michele Di Capua, Vittorio Fuccella, Giovanni Guardi. Performances of Multiple-Selection Enabled Menus in Soft Keyboards DMS'09 - The 15th International Conference on Distributed Multimedia Systems. Pp. 359-364 (download draft)


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