http://dl.gi.de/handle/20.500.12116/6112 Thu, 23 Jul 2026 17:49:05 GMT 2026-07-23T17:49:05Z http://dl.gi.de:80/bitstream/id/2266443c-7635-4a5e-b433-ad8ce5044faf/ http://dl.gi.de/handle/20.500.12116/6112 http://dl.gi.de/handle/20.500.12116/6185 Einfluss von Layout-Prinzipien auf die ästhetische Wahrnehmung von Web-Seiten Schrepp, Martin Ziegler, Jürgen A well investigated effect is the dependency between perceived usability and perceived aesthetics of products. Several studies show that aesthetically pleasing products are also perceived as highly usable. Aesthetic design is thus important for the success of a product. For designers it is essential to understand how concrete design decisions influence perceived aesthetics. Several well-known design heuristics guide designers in their decisions. We investigate heuristics for creating the layout, i.e. the positioning of UI elements on the screen. We study several heuristics to find out if they indeed influence the aesthetic perception of users. In addition, the relative strength of this influence is also investigated. For the study several variants of eight web sites were constructed that vary systematically concerning the investigated heuristics. Participants were asked to rank the variants concerning aesthetic impression. A conjoint analysis was used to analyze the results. From a methodological point of view the study shows that design principles can easily be derived by systematical variation of screen variants and a conjoint analysis. From the investigated screens a number of quite concrete suggestions concerning the optimal layout of screens could be derived. These suggestions can help designers in their daily work to make the right decisions to create an aesthetically pleasing layout. Fri, 01 Aug 2014 00:00:00 GMT http://dl.gi.de/handle/20.500.12116/6185 2014-08-01T00:00:00Z http://dl.gi.de/handle/20.500.12116/6184 CSCW & Social Computing Prinz, Wolfgang; Richter, Alexander Ziegler, Jürgen Fri, 01 Aug 2014 00:00:00 GMT http://dl.gi.de/handle/20.500.12116/6184 2014-08-01T00:00:00Z http://dl.gi.de/handle/20.500.12116/6190 Kennzahlen kooperativer Arbeitsbereiche Prinz, Wolfgang; Jeners, Nils Ziegler, Jürgen The paper presents metrics for shared workspaces, based on the analysis of user activities in the shared workspace system BSCW. We propose metrics to compare the activity, productivity and cooperativity of users in different shared workspaces. Our analysis indicates that the metrics allow for a mapping of workspaces to a usage intention as well as a benchmark between different user groups. Furthermore we observed the Pareto principle known from other statistical evaluations also in the ratio between active and passive users of a workspace. Additionally our research indicates the distribution ratio of information within a shared workspaces. Fri, 01 Aug 2014 00:00:00 GMT http://dl.gi.de/handle/20.500.12116/6190 2014-08-01T00:00:00Z http://dl.gi.de/handle/20.500.12116/6189 Reflektion der wissenschaftlichen Nutzenbetrachtung von Social Software Meske, Christian; Stieglitz, Stefan Ziegler, Jürgen After the widespread of social media for private purposes within the last years, companies also started to explore the potential benefits of professional social software usage by focusing on customer interaction (e.g. via Facebook or Twitter) as well as on company-internal purposes (e.g. via Wikis, Blogs, etc.). In this article, we review and reflect the status quo of the scientific discussion of potential benefits that are induced by social software. We show, that the measurement of the added value of social software is difficult to perform and yet of high importance for practice as well as science. Fri, 01 Aug 2014 00:00:00 GMT http://dl.gi.de/handle/20.500.12116/6189 2014-08-01T00:00:00Z