Paper Prototyping: Hi-Fi & Lo-Hi Together

4 Dec 2007 - 8:25am
6 years ago
3 replies
804 reads
deepfrost
2006

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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Comments

4 Dec 2007 - 9:50am
Todd Warfel
2003

On Dec 4, 2007, at 8:25 AM, Nam Loc wrote:

> 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.

The biggest concern I'd have with this is the participants having
difficulty making the leap between the two different types of
prototypes in the same session. This could end up showing "usability
issues" that aren't really issues, but rather can be contributed to
the participant having difficulty making that leap.

If anything, you're better off starting with the wireframes first,
then moving to the visually designed screens—move forward, not back.
This could help eliminate some of that bias. That and a really good
moderator :).

Cheers!

Todd Zaki Warfel
President, Design Researcher
Messagefirst | Designing Information. Beautifully.
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Contact Info
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Email: todd at messagefirst.com
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In theory, theory and practice are the same.
In practice, they are not.

4 Dec 2007 - 12:17pm
Pawson, Mark
2007

I have had to do exactly this in the past with a project where we had
the HI FI coded and ready to go, but there were additional tasks that
we needed that would take longer to code. We created screenshots of
the hifi prototype and related dialogs - mainly file open dialogs
that anyone would know. We scanned these and started the test first
with these. We had specific tasks that were addressed by this low fi
approach. After that we proceeded to the next set of tasks that were
HiFi. It worked fine. We did explain before starting that we would be
starting with screenshots that were not interactive for one set of
tasks and then moving onto a working prototype for the next set. I
think because the screenshots were of the HiFi prototype the
participants were not distracted. Also, I agree with Todd, I was a
good moderator.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Posted from the new ixda.org
http://www.ixda.org/discuss?post=23243

7 Dec 2007 - 12:56pm
deepfrost
2006

Thanks all who have responded to my question.

The issue have been resolved now, I managed to convince the team to extend the date of the testing to allow for more time to finish of all the visualisation of the paper prototypes.

Kind regards

Nam

----- Original Message ----
> From: Mark Pawson <satupawson at xplornet.com>
> To: discuss at ixda.org
> Sent: Wednesday, 5 December, 2007 1:17:05 AM
> Subject: Re: [IxDA Discuss] Paper Prototyping: Hi-Fi & Lo-Hi Together
>
> I have had to do exactly this in the past with a project where we had
> the HI FI coded and ready to go, but there were additional tasks that
> we needed that would take longer to code. We created screenshots of
> the hifi prototype and related dialogs - mainly file open dialogs
> that anyone would know. We scanned these and started the test first
> with these. We had specific tasks that were addressed by this low fi
> approach. After that we proceeded to the next set of tasks that were
> HiFi. It worked fine. We did explain before starting that we would be
> starting with screenshots that were not interactive for one set of
> tasks and then moving onto a working prototype for the next set. I
> think because the screenshots were of the HiFi prototype the
> participants were not distracted. Also, I agree with Todd, I was a
> good moderator.
>
>
> . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
> Posted from the new ixda.org
> http://www.ixda.org/discuss?post=23243
>
>
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