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User Evaluation

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3D Interaction Design in Virtual Reality

Universidad de Londres

4.7 (49 calificaciones) | 3.2K estudiantes inscritos

Curso 3 de 5 en Realidad virtual Programa Especializado

This course will teach you about one of the most important aspects of VR, how you interact with a VR world. Virtual Reality is completely different from an on screen app or game. You are completely immersed in a VR world, so it doesn't make sense to interact only through buttons or menus. You will get the most out of VR if you can interact with the world just as you would with the real world: with your natural body movements. You will learn about the basic concepts and technologies of VR Interaction. You will then get hands on, learning about how to move around in VR and how to interact with the objects in your world. The course will finish with some advice from experts on VR interaction design and you will do a project where you will get real experience of developing VR Interaction.

Revisiones

4.7 (49 calificaciones)

5 stars
36 ratings
4 stars
11 ratings
3 stars
1 ratings
2 stars
1 ratings

SZ

Dec 24, 2017

Very good course showing how to use VR interaction techniques. Thank you!

HR

Sep 03, 2018

This is really a grate course to learn about virtual realty

De la lección

Challenges in VR interaction and User Interfaces in VR

Welcome to Week 4! In the final week of this MOOC, we'll be looking at challenges in VR interaction, and user interfaces in VR. You'll begin by learning about graphical user interfaces in VR, including abstract interfaces and diegetic and non-diegetic UI, before moving on to designing VR interaction.

Harry Brenton on VR Interaction Design4:43

User Evaluation5:17

Harry Brenton on the UX of VR7:23

Impartido por:

Dr Sylvia Xueni Pan
Lecturer, Department of Computing
Dr Marco Gillies
Senior Lecturer

Transcripción

[MUSIC]

Throughout this whole course, Marco and

I have been asking you repetitively to test your VR application with users.

This is extremely important because without testing,

you are almost certainly making the wrong assumptions.

Fred Brooks pointed out, in 1988, that in watching many

other interfaces being designed, I observed that the uninformed and

untested intuition of the designer is almost always wrong.

Marco and I have both learned this the hard way.

We've conducted hundreds of experiments in virtual reality and made tons of mistakes.

The only thing about user variation I am certain of

is not there are always situations I have failed to plan for.

So I thought I should share some of my experience here with you,

hopefully to save you some time.

First, recruitment, you should try to recruit not only your friends and

families but also people you have never met before.

In particular those who fits the profile of your potential users.

When they come in collect some personal information from them, for

instance gender and age.

This is because the testing result maybe very different from what you except and

there might be big variations between different users.

Collecting data on participants gender and age could help you later

explain the variations and decide what you want to do next.

It might also be a good idea to ask them questions about

their experience in gaming and VR.

If they played a lot of video games,

then they might be more familiar with 3D metaphors from those games.

And therefore have presumptions about what to expect,

which can make them better or worse in using your application.

Also in research, we always need to apply for

ethical approval before running any experiment.

Although you might not need that, it is always good to

think about potential risks you might be putting your participants under.

For instance, if your application is likely to cause simulation sickness,

you will need to make sure you warn your participants

in case they might be driving or cycling immediately after trying your game.

Second, plan your user study to have something to compare to.

It's easy to get a group of people to try your game and give you some

compliments but it's not actually the most efficient way to get feedback.

The more effective way is, for instance, compare two different navigation methods

implemented and see which one works better.

Or you can get users to play a similar game to yours and

ask them to compare the two on different aspects.

If you have two methods or

two games you are comparing, you will want all the participants to try both.

In order to have unbiased feedback, you can randomized the order.

So the first participant try method one first and then method two.

And then the second participant try method two first,

followed by method one, so on and so forth.

This is the best way to get unbiased and constructive feedback and results.

And all scientists follow the same principle when running their experiments.

Finally, I want to say a few words about data collection.

You might want to collect at least two types of data.

First, user performance.

For instance, how long did it take for them to finish all the tasks?

How many enemies did they manage to kill?

And how many times do they get hurt?

You can also collect their head rotation data.

If they're doing psychotherapy for arachnophobia, you might want to measure

how often do they look at the spiders in VR in order to assess their level of fear.

Ideally, you should write code in your application to collect all performance

related data automatically and save as log files for each user.

The second types of data you can collect are more subjective.

They could be in the format of questionnaires.

You should use some existing questionnaires, for

instance, questionnaires which measures presence or simulation sickness.

Subjective data can also be collected in the format of interviews.

Make sure you plan your interview questions and take notes.

That's all I have to say about user evaluation for now.

You might not be able to do all this, but

it's good to have a rough idea of where you should be going towards.

[MUSIC]

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