> For the complete documentation index, see [llms.txt](https://annemarleen.gitbook.io/immersive-design/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://annemarleen.gitbook.io/immersive-design/class-0-2/class-2.md).

# Class 2: Evaluation Basics

## I. Reality check: User Experience

What is the overall user experience when looked at:

* *Desirability*: does the user want to engage fully or wants to try the experience again?
* *Satisfactory:* is the user moving through the experience in a pleasurable way, with focus until the end?
* *Usability*: is the experience understandable to the user, are there any faults or delays in the interaction?
* *Utility*: is the product useful to the user and does it have a purpose that the user accepts?
* *Efficiency*: can the user learn quickly, is it fast to use?
* *Effective*: does it work, can I do it, does it do the job well?
* *Safety*: is it safe for the user to use? does the user feel safe in the experience? ([physical](https://youtu.be/CvZTJ-zdoLQ) and [emotionally safe(!)](https://youtu.be/DBV1pTzsevM)

> ***Tools***: User Journey - Touchpoints - Proxemic areas - Action spaces - Rapid Prototype - Play-acting & User Testing 

## II. Reality check: Spatial Representation

**1. Form Notion:** what kind of form does the space have?\
\
 You can use daily metaphors **(closed)**: *house, hut, nest, shell, cellar, shelter, temple, church, train, football field, dessert, forrest, laboratory, forest, laboratory, football field.*\
\
 Use daily metaphors **(open-ended)**: *infinity room, race track, beach, mountain, desert.*

![https://web.mit.edu/kkoile/www/papers/Koile-AIEDAM06.pdf](/files/-LnN1qQlJdjuzILG--7U)

**2. Pattern of Form**: what proportion and balance does the space have?\
\
 *stubborn - kind - bold - soft - calculated - spiritual - framed - suprematist - topographic - fluid - organic form - parametric* 

**3. Rhythm of the Air:** imagine the wind blowing through space. What does this space do?\
\
 Does it: *collide? explode? shatter? fragment? abstract? distort? and deform? fold? twist? erode? melt? float? climb? walk? dive?*

{% file src="/files/-Lq-zhHdra0\_cierx7ky" %}
Design the Air
{% endfile %}

## III. Reality Check: Interaction Techniques

#### USER TASKS: checking its quality

![A Taxonomy of Usability Characteristics in Virtual Environments, Joseph L. Gabbard (1997)](/files/-LnEG2LbpXv_DN5lgFps)

* Navigation & Wayfinding
* System Control
* Selection & Manipulation
* Feedback, Feedforward & Force feedback

> ***Tools***: Hierarchical Task Analysis - User Task Flow - User Testing - Heuristic Evaluation - Biometric measuring - Questionnaires - Interviews

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