Wizard of OZ Oxford, Maurice Vereecken Goal of implementing Woz
Wp2 Quick insight in mapping events to Ontdeknet Working towards
what to do in WP3 Finding the possible obstacles on forehand. Wp4
Validating intervention model Ad-hoc testing of new ideas
Implementation;Overview Step 1; Gather information Step 2; Ozzing
Step 3; Create model Step 4; Implement model What is woz The Wizard
of Oz technique enables unimplemented technology to be evaluated by
using a human to simulate the response of a system. Interacting
with the knowledge the agent would have. Actors Wizard (Observer)
Dorothy (Logged in user) What is woz Using Woz The "wizard" sits in
a back room, observes the user's actions, and simulates the
system's responses in real- time. Often users are unaware (until
after the experiment) that the system was not real. The "wizard"
has to be able to quickly and accurately discern the user's input.
The output must also be sufficiently simple that the "wizard" can
simulate or create it in real time. The easy way: The user logs in
to the system The observer receives all the application events the
system generates The observer interpretes the data and gives a
response based on reasoning (ie; a reasoning tree) Example 1;
Introduction Outline In the introduction fase, the user has to
click on edit, fill in his personal introduction and has to click
on save The introduction is finished when he has filled in more
than 5 words. Example 1; Introduction Events When clicking on edit
a start task is fired When clicking on save and more than 5 words
are filled in a complete task is fired. Parameters The context;
Introduction The text; The filled in introduction Example 1;
Introduction Fill in your introduction The user provides a
description/story about himself. Current problem: Is the user done
introducing himself; When is the task finished? Example 1;
Introduction Example 2; Assignment Outline The user has to open an
assignment Make a decision if we want to use an expert which he is
already signed on or search for a new one. Select the expert for
the project Example 2; Assignment Events Start_event on opening
assignment Start_event on selecting expert tab Parameters The
assignment context; Example 2; Assignment Navigation; (three
modalities) Tell the user; Give a hint how to get to the assignment
Guide the user; tell all the steps the user must take (Buttons etc)
Redirect; Directly show the right screen Example 2; Assignment
Select expert for the assignment The user can choose one of his own
experts or (s)he can sign up with a new one. Current problem:
Signing up with a new expert can be an optional task. How do we
manage that? The user can work parallel on multiple assignments,
activities like reading a diary are not linked with one single
assignment The user can click anywhere, the intention is not clear.
If the teacher decides the task isnt finished, the completed task
has to be reopened Example 2; Assignment Next steps Wp2 Validate
events mapping to model Creating model on base of lessons learned
Wp4 Check working of model Fine tune model on base of pilots
