Details
| Original language | English |
|---|---|
| Pages (from-to) | 521-539 |
| Number of pages | 19 |
| Journal | Requirements engineering |
| Volume | 28 |
| Issue number | 4 |
| Publication status | Published - 5 Sept 2023 |
Abstract
The creation of a shared understanding of the project vision of all relevant stakeholders is vital to the requirements engineering process. One way to create such a shared understanding is through the use of vision videos that visualize the project vision at an early project stage. However, not all functional aspects can be presented. For example, the fact that an access code is valid for only a single use can be hard to visualize. One low-effort solution could be the insertion of short texts or short audio clips. In this work, our question is twofold: What effects do short pieces of additional information have in vision videos? What are suitable ways to add this information to vision videos? To answer these research questions, we investigated three different methods of inserting additional information to vision videos in an eye tracking study. We inserted short texts either below the scene or as overlays and also investigated the addition of short audio clips. These methods were evaluated in terms of participants’ video comprehension, visual effort, cognitive load and subjective preference. The results of our study show that the pieces of additional information improve vision comprehension, thereby supporting the creation of a shared understanding. All investigated methods lead to only marginal increases of the viewers’ cognitive load. Based on our results, we derive recommendations on how to insert additional information in vision videos.
Keywords
- Eye tracking, Requirements engineering, Video, Vision
ASJC Scopus subject areas
- Computer Science(all)
- Software
- Computer Science(all)
- Information Systems
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In: Requirements engineering, Vol. 28, No. 4, 05.09.2023, p. 521-539.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - When details are difficult to portray: enriching vision videos
AU - Nagel, Lukas
AU - Schmedes, Melanie
AU - Ahrens, Maike
AU - Schneider, Kurt
N1 - Funding Information: This work was supported by the Deutsche Forschungsgemeinschaft (DFG) under Grant No.: 289386339, project ViViUse. We would like to thank all our participants who took part in the study despite the corona pandemic.
PY - 2023/9/5
Y1 - 2023/9/5
N2 - The creation of a shared understanding of the project vision of all relevant stakeholders is vital to the requirements engineering process. One way to create such a shared understanding is through the use of vision videos that visualize the project vision at an early project stage. However, not all functional aspects can be presented. For example, the fact that an access code is valid for only a single use can be hard to visualize. One low-effort solution could be the insertion of short texts or short audio clips. In this work, our question is twofold: What effects do short pieces of additional information have in vision videos? What are suitable ways to add this information to vision videos? To answer these research questions, we investigated three different methods of inserting additional information to vision videos in an eye tracking study. We inserted short texts either below the scene or as overlays and also investigated the addition of short audio clips. These methods were evaluated in terms of participants’ video comprehension, visual effort, cognitive load and subjective preference. The results of our study show that the pieces of additional information improve vision comprehension, thereby supporting the creation of a shared understanding. All investigated methods lead to only marginal increases of the viewers’ cognitive load. Based on our results, we derive recommendations on how to insert additional information in vision videos.
AB - The creation of a shared understanding of the project vision of all relevant stakeholders is vital to the requirements engineering process. One way to create such a shared understanding is through the use of vision videos that visualize the project vision at an early project stage. However, not all functional aspects can be presented. For example, the fact that an access code is valid for only a single use can be hard to visualize. One low-effort solution could be the insertion of short texts or short audio clips. In this work, our question is twofold: What effects do short pieces of additional information have in vision videos? What are suitable ways to add this information to vision videos? To answer these research questions, we investigated three different methods of inserting additional information to vision videos in an eye tracking study. We inserted short texts either below the scene or as overlays and also investigated the addition of short audio clips. These methods were evaluated in terms of participants’ video comprehension, visual effort, cognitive load and subjective preference. The results of our study show that the pieces of additional information improve vision comprehension, thereby supporting the creation of a shared understanding. All investigated methods lead to only marginal increases of the viewers’ cognitive load. Based on our results, we derive recommendations on how to insert additional information in vision videos.
KW - Eye tracking
KW - Requirements engineering
KW - Video
KW - Vision
UR - http://www.scopus.com/inward/record.url?scp=85169789501&partnerID=8YFLogxK
U2 - 10.1007/s00766-023-00403-0
DO - 10.1007/s00766-023-00403-0
M3 - Article
VL - 28
SP - 521
EP - 539
JO - Requirements engineering
JF - Requirements engineering
SN - 0947-3602
IS - 4
ER -