AVI 2022: Study Data

Raw and processed study data, analysis procedure and results for study on Layer-based Interaction on Elastic Dispalys, published in:

Mathias Müller, Elena Stoll, Anna-Magdalena Krauß, Franziska Hannß & Dietrich Kammer (2022): "Investigating Usability and User Experience of Layer-Based Interaction with a Deformable Elastic Display". In: AVI '22: Proceedings of the 2022 International Conference on Advanced Visual Interfaces, Article No.: 11, Pages 1 - 9, https://doi.org/10.1145/3531073.3531101

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Table-of-Contents

1. Repository Overview
2. Log files Structure
3. Values
4. order of states
5. Layers Statistics file
6. License

Repository Overview

This repository contains raw study logs, analysis code, processed exports, and SPSS/dissertation artifacts for the Zelasto study.

Folder	Content Overview
code/	Analysis notebooks (.ipynb), plotting/statistics workflows, and generated NASA TLX PDFs plus image assets in code/images/.
data/	Raw participant log files (01.csv-24.csv), layer metadata in data/meta/, and questionnaire files in data/questionnaires/ (raw data omitted for privacy protection).
export/	Generated analysis outputs: cleaned CSV datasets, descriptive statistics, result tables, interaction exports, and figures in export/img/.
spss/	SPSS datasets (.sav) and output files (.spv/.htm/.pdf), including updated model results in spss/updated/.
diss/	updated material prepared for use in PhD-Thesis: CSV summaries, SPSS data/output, exported HTML reports, and figures.
doc/	Documentation and report assets (.docx), plus reusable plots and tables for write-ups.

Log files Structure

2021-05-11T14:55:08.419Z; INTERACTION; direct;18;14,9,5,1,17;18;1; 0.5099127;0.5482645;-0.449999869;637563489084131200;1;8

DateTime (LogServer)	STATE	mapping method	Task-No.	Target Layers	Layer-Count	Trial-Idx	PosX	PosY	PosZ	TimeStamp (Server)	InteractionType	CurrentLayer
2021-05-11T14:55:08.419Z	INTERACTION	direct	18	14,9,5,1,17	18	1	0.5099127	0.5482645	-0.449999869	637563489084131200	1	8
2021-05-10T12:14:37.259Z	VIEW	direct	2	7,8,1,5,2	9	0	TASK_DESCRIPTION
2021-05-10T12:14:37.259Z	TASK	direct	2	7,8,1,5,2	9	0
2021-05-10T12:13:51.730Z	MAPPING_METHOD	direct	1	4,5,3,1,2	6	0
2021-05-10T12:14:37.264Z	SUBTASK	direct	2	7,8,1,5,2	9	0	2
2021-05-10T12:14:37.265Z	SUBTASK_STATE	direct	2	7,8,1,5,2	9	0	START
2021-05-10T12:14:39.587Z	VIEW	direct	2	7,8,1,5,2	9	0	TASK_VIEW
2021-05-10T12:14:45.064Z	SUBTASK_STATE	direct	2	7,8,1,5,2	9	0	HOLD
2021-05-10T12:14:46.565Z	SUBTASK_STATE	direct	2	7,8,1,5,2	9	0	COMPLETED
2021-05-10T12:10:39.115Z	SUBTASK_STATE	direct	1	1,5	6	0	FAILED	wrong level approved
2021-05-10T12:13:38.243Z	SUBTASK_STATE	densening	6	3,12	14	0	TERMINATED	switched to other level before hold timeout completed

Values

• Tasks:

  • 1-6 (Test)
  • 1-18 (Block 1)
  • 19-36 (Block 2)
  • 37 - 54 (Block 3)

• 3 Blocks for any mapping method

• STATE:

  State Value	Description	SubTypes
  INTERACTION	Trial interaction	-
  VIEW	switched view (describe Task)	TASK_VIEW
  	switched view in test runs (describe Task)	Test Run TASK_VIEW
  		TASK_DESCRIPTION
  TASK
  MAPPING_METHOD	starting to next large block (mapping method)
  SUBTASK	same as the next: starting to next task
  SUBTASK_STATE	start of the trial after Subtask	START
  	dwell time in a layer exceeded: hold-timer starts	HOLD
  	end of the trial (Success)	COMPLETED
  	end of the trial (hold failure	TERMINATED
  	end of the trial (wrong level ?)	FAILED

• mapping method
  describes, how layers are aligned:

  • direct (equivalent distance)
  • densening (larger distance on top, decreasing with depth value)
  • widening (narrower distance on top, increasing with depth value)

• Task-No.

  • running number of tasks

• Target Layers, Trial-Idx

  • array of targets for each layer in current Task
  • trial-Index (zero based) describes target layer for current trial

• Layer-Count

  • number of max layers in Task

• PosX, PosY, PosZ

  • Positions received from Tracking Server
  • PosX / PosY in range [0, 1]
  • PosZ in range [-1, 1] with 0 = on the surface / no interaction, -1 max push, +1 max pull

• Timestamp (Server)

  • timestamp received from Tracking server: miliseconds based unix time stamp

• InteractionType

  • type recognized from server (1 = PUSH)

• current layer

  • layer associated with received depth value

order of states

1. START (missing on first trial !) OR

   • start of an new task

2. TASK_VIEW / TASK_DESCRIPTION

3. HOLD

4. COMPLETED / TERMINATED / FAILED

Layers Statistics file

Location: data/depthlayers.csv File

6; direct; 0 | 1 | 2 | 3 | 4 | 5 | 6; 0 | 0.0834 | 0.25 | 0.4167 | 0.5834 | 0.75 | 0.9167 | 1

NUM_LAYERS	MAPPING_METHOD	DEPTH_LAYER_ID	DEPTH_LAYER_BORDER
number of layers	mapping method for block	idx of the depth layer in border array	start depths for each layer idx

• mapping of layers to depth ranges for better evaluation how "good" a depth layer has been hit

License

Shield:

This work is licensed under a Creative Commons Attribution 4.0 International License.