Hi all.
Apologies if this topic has already been covered.
In a project I am involved with, I am presented with a situation regarding
Paper Prototyping.
We are currently overhauling the UI for our products and plan to evaluate the
UI concept designs with Paper Prototyping very soon.
The original plan was to develop all the screens with graphical visualisations.
However our Graphics designer said that they are unable to draw all of the
screens on time for the test. It has been suggested that we replace all the
un-drawn screens with wireframes for the test sessions.
So what happens now is that within the same test session, the User will be
tested with half the use cases (functions) of the system with full
visualisation screens, and the remaining use cases with wireframes only. Eg,
for an e-commerce site, testing the Search and Browse with visuals, and then
test the Checkout with wireframes all within the same test session.
I am aware of the pros and cons with testing of hi-fidelity and lo-fidelity of
Paper Prototypes, however I am concern with using both, one after the other,
within the same test session as it may introduce variables into the final
results.
So I have recommended that the User is only exposed to one of the 2 types of
Paper Prototypes developed. However there has been some disagreement with this
suggestion as some of my colleagues think that there are no problems at all
with testing both types of Paper Prototypes in the same session. Needless to
say, we are having trouble reaching a decision.
Therefore I really appreciate it if someone can give us a second opinion on
this.
Or if any one who have encountered a similar scenario, please do share you
experiences with us.
Many thanks.
Nam
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