JOENSUUN YLIOPISTO										EXERCISES 1
Tietojenkäsittelytieteen laitos	              			Week 11
Usability Engineering / Käytettävyystekniikat	




1: X task

Read the following article and prepare to discuss the following
questions at the exercise session.

In order to complete the exercise, you have to email your answers
by midnight before the demos to Minna Kamppuri (firstname.lastname@cs.joensuu.fi).


Article:

  	
Ahmed Seffah and Eduard Metzker 	 
The obstacles and myths of usability and software engineering
Communications of the ACM, Volume 47, Issue 12  (December 2004)
http://doi.acm.org/10.1145/1035134.1035136 (you can access the article from university computers)


Questions:

a. Why is the definition of usability unclear?


b. Why it is important, especially in the larger projects, to get a usability specialist involved?


c. What is (and should be according to your opinion) the relation between software engineering processes and usability engineering? 


d. What shall software engineering learn from usability experts? What shall usability learn from software engineering?



2: 

 Find an object, product, design, interface, menu, dialog, or an imposed way or style, that makes your life harder in a usability sense. Describe the artefact and propose a solution to the problem.


3:

 a. Why is the culture important to the design of user interfaces?
 b. What is the role of culture in the usability engineering?