JOENSUUN YLIOPISTO										
 
Tietojenkäsittelytieteen laitos	              		
 
Usability Engineering / Käytettävyystekniikat	
 
EXERCISES 3/Week 13
 
 

8: X task
 
 CTA of Amica-Corelli restaurant customers.
  
 Individually or in pairs, make contextual task observation/interview for at
 least ten (in pairs for at least twenty) users and document it as Task
 Scenarios and Task Organization Models. Select only one main Actor (customer of
 the restaurant), but possibly include two or more key Use Cases. One of the Use
 Cases is to take a meal at the Amica restaurant in the Science Park, starting
 with coming to the restaurant, and finishing after paying for the meal.
   
 Identify what tools, artifacts and other things necessary to complete each of
 the tasks. Mark what are the bottlenecks of the current models. Briefly
 document the environment. Consider also on possible mismatches between user
 models and the model imposed by the environment.
   
 Based on the observations, create a Task Organization Model for each of the Use
 Cases. Are there any specific recommendations you would propose to the task and
 environment? You might consider also other users such as restaurant stuff, and
 other Use Cases like taking only a coffee and snack, to get the whole picture.
    
 Email the Task Scenarios and take your Task Organization Models and observation
 notes to 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).
   
   
9: (2 points)
   
 Last week you have started to approach a new application of your choice (A WWW
 site of the Department of Computer Science, University of Usability, UE; or A
 program/algorithm visualization tool for introductory programming courses.)
    
 a. Identify a set of basic tasks (and possibly sequences) that main user groups
 will perform using your application. Have your answers documented for each of
 the user groups.
   
 b. Develop a set of usability goals for your application, both qualitative and
 quantitative.
    
 c. How would you evaluate ease-of-use and ease-of-learning usability goals for
 your application?
     
 d. How would you establish benchmark data for relative quantitative goals of
 your new application?
    
    
10:
    
 How on earth can simple things be so difficult? What is your experience with
 microwave ovens?