Usability Assignment, this year's system:
Windows Media Player ™ Microsoft
Your situation
Your group is a team of
usability experts employed by the Ace Consulting Company (™) to evaluate the usability of
Microsoft's Windows Media Player (version
eleven1). You have been assigned by the VP of your company
to determine if the Media Player meets
the needs of the people who currently use the system. In addition, your VP may be
interested in seeing how quickly new users learn the use of this software. Your job is to study the
program and find any problems that may arise when people are using the system
that are caused by flaws in the design of the interface.
This will be done by observing people who are using the program while they are carrying
out a set of pre-created tasks and then recommending ways in which these flaws
may be corrected. Try to get as wide a mix of test participants
within this range as possible:
-
Non-users, people
who have never used any software to play CD's and audio files on their computer (including competitor programs
such as the Real Player).
-
Novice users, who just use
the basic features of Windows Media Player e.g., they only use it for playing
CD's and while they can play an audio file on their computer by clicking on it
they can't do anything more advanced like creating a play list.
-
Intermediate users who use many of the features available through Media Player (e.g.,
creating custom play lists, changing the information associated with each song
such as the composer etc.) but don't know them
all).
- Power
users, someone who is familiar with and uses on a regular basis all (or close
to all) the features and functions available through the Media Player (e.g.,
they have a customized library that organizes music into custom categories,
the properties that describe each audio file may have been modified to suit
that person's tastes and preferences).
It is up to your team of consultants to come with a set of typical tasks that should be completed by the
test participants. Although I have started all the groups off by providing
a list of sample tasks, each group should add to this list. The assignment sheet has a
section
that indicates how you can go about this but you should already be
familiar with task descriptions from Assignment 1. In the case of the
usability study I suggest that you break down a full task (a complete
interaction with the system that you created for A1) into sub-tasks (like the ones that I have below). Presenting a long and complex
task may add extra level of complexity and unnaturalness (because this is a
study rather than 'real life' a typical task will take longer) that is not faced by
the typical user and may skew your test results. As well, the experimenter
should try the system ahead of time, becoming as familiar with it as possible.
Your group should come up with at least three other tasks to
give to participants; preferably, you should come up with even more. (Just
don't give out so many tasks to each participant that your test takes too long
to run). A good
task is something that many end-users are likely to complete with Media Player; tasks should also be
selected to investigate different (but still important or heavily used) parts of
the system's features. (If you find that you have many tasks but it's time
consuming to have every participant complete them all then you may want each
person to only complete a subset of the entire set of tasks - but in the
methodology section you should not only note this but also the background and
skills of the participants who were to complete a particular set of tasks).
Here is a list of some sample tasks to start
you all out. Feel free to use them in your study but again make sure that
you write up some additional tasks of your own: Some test
participants may not feel comfortable having you see information about their
Media Player configuration. If this is the case, then you have to get things set
up for them ahead of time (maybe use a sample configuration for all
test participants) and add have the person use sample data that your group
provides (audio files, CD's etc.). Before you run the study ask your test participant if he or she
feels comfortable using their own configuration. The person must
be free to either quit the study or to proceed by only using a sample
configuration that
you have already created. You may also wish to substitute the generic data
that I use (e.g., "...insert your CD") with something meaningful to that
individual (e.g., "...you are to insert your favorite CD: Let Go...").
Task 1. Play a CD using the Media
Player.
You want to listen to some
music on your computer. Insert your CD into your
computer and play it using Windows Media Player.
Reason for choosing this task: Playing music is one of the core functions of the system and is often the
primary (or sole) reason for using this program.
Task 2. Create and save a new play
list.
You find that there is a selection of songs that
you enjoy listening to while you work. Organize these songs into a play list so that you can hear them
all whenever you wish. One you've created the play list, you are to start
listening to the songs.
Reason for choosing this
task. One of the advantages of
listening to music on a computer rather than a traditional stereo is the ability
to organize information. Although this may not be a common task, for most people
it's still handy to be able to categorize your music collection and to only
listen to
the music on particular lists.
Task 3. Copying the contents of a CD onto your computer and
editing the details. After
looking at the details of the CD that you just ripped onto your computer you notice that
the genre is wrong. Change the
genre of the CD to the correct one.
Reason for choosing this task.
Each CD and audio file that is played via Media Player is classified according
to a number of categories such as artist, genre, album etc. because different
people may remember information differently (e.g., When looking for the song
"Danger Zone" someone may recall that it was from the Tom Cruise movie "Top Gun"
while another person may instead think of the artist "Kenny Loggins".) Media
Player does try to reduce the amount of work required to classify and organize
the user's audio collection by automating the process. However on occasion it
does misclassify music so the person can't easily find what they are looking for
under the category that they think it should be under and must change the
default information.
Preparing Equipment
Test
participants can either access Media Player from their own computer (ideal
- but they must be comfortable with this) or
they can try to access it from your
own account (if you find it more convenient to use the computers in the lab).
Parts of the system to exclude from your the usability study
-
Applications that support the Media Player but are not a part of the application
(e.g., 'Napster') or parts of the program that require additional hardware
(e.g., the 'Sync' feature).
1 It's important that everyone evaluates
the same version of because each version has different features.
I picked this version because it is the one that is installed in the WinXP labs
in Math Sciences. Make sure that your evaluation is not performed on a
different version of the Media Player.