1	Inclass-doument reading
	2	Types-of-Keypad
	3	Demo-Fitt's Law
	4	Gestalt_Theory
	5	Error, Slip and Mistake
	6	Error Prevention
	7	Norma's Interaction
	8	Affordances and Contrainsts
	9	Types of Cursor Keys
	10	Keystroke Level Model
	11	CMN-GOMS
	12	Usabilty Evaluation
	13	Congnitive Walkthrough