Nina Hollender

Nina Hollender
SAP Research | SAP

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13
Publications
3,505
Reads
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311
Citations

Publications

Publications (13)
Conference Paper
Full-text available
Converting customer survey feedback data into usable insights has always been a great challenge for large software enterprises. Despite the improvements on this field, a major obstacle often remains when drawing the right conclusions out of the data and channeling them into the software development process. In this paper we present a practical end-...
Conference Paper
Full-text available
Having to switch between task descriptions and the interface during a usability test induces cognitive load for participants and increases time on task. An explorative study is reported, showing a large individual variability in how often and for how long participants returned to task descriptions. They returned to descriptions at least once in 80%...
Conference Paper
Full-text available
How to order tasks in a usability test is an important question, since the task ordering is likely to confound the success rate, time on task and subjective measures, such as satisfaction. This may provide incorrect information for decision-making. We hypothesize that if a subsequent task comprises similar components to a previous task, the perform...
Article
With the continually increasing complexity of e-learning environments, there is a need for integrating concepts of cognitive load theory (CLT) with concepts of human–computer interaction (HCI). Basic concepts of both fields were reviewed and contrasted. A literature review was conducted within the literature database “The Guide to Computing Literat...
Conference Paper
In video annotation research, the support of the video annotation workflow has been taken little into account, especially concerning collaborative use cases. Previous research projects focus each on a different essential part of the whole annotation process. We present a reference architecture model which is based on identified phases of the video...
Conference Paper
There is a growing number of application scenarios for computer-supported video annotation and analysis in educational settings. In related research work, a large number of different research fields and approaches have been involved. Nevertheless, the support of the annotation workflow has been little taken into account. As a first step towards dev...

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