דלג לחלק העיקרי

יצירה שיתופית של ידע בקהילות מוגברות טכנולוגיה

ds Publication name header

חזור

חזור

מלות מפתח: 
עברית

ISVIS 2016 ויזואליזציה של מדדים מרוכבים - הרצאה מצולמת

תאריך: 
2016
ISVIS 2016 ויזואליזציה של מדדים מרוכבים - הרצאה מצולמת

ISVIS 2016 ויזואליזציה של מדדים מרוכבים - הרצאה מצולמת

A Composite Indicators (CI) is a measurement and benchmarking tool used to reflect and measure multi-dimensional concepts such as Information and Communication Technology (ICT) usage, individual’s well-being and more. Indicators are selected and combined to reflect the phenomena being measured. Measurement iterations produce a series of time-oriented data, which stakeholders as well as the general public might be interested to interpret. Visualization of a CI is highly recommended in order to ease interpretation. Yet there is a lack in guidelines for designing effective and engaging CIs visualization. Out of the various ways to visualize CIs, radial visualizations are a common way of representing the multidimensionality of the indicators. However it is unclear how to visualize the temporal dynamics in radial diagrams. Construction of a new national ICT index challenged us to seek for a practical satisfying solution, and provided us a unique opportunity to use a real world dataset. We conducted two controlled experiments using formal task taxonomy, adjusted to CI tasks. In the first experiment, the popular Radar chart was compared to two other radial visualization methods: Flower-charts as used in the well-known OECD Better Life Index, and Circle-charts which could be adopted for this purpose. Results indicate that Radar chart was the least effective and least liked, while performance of the two other options were mixed and dependent on the task. In second experiment, we compared static vs. dynamic time mapping using Radar and Flower charts. Results indicate that static time encoding was more effective than dynamic encoding. Still, an in depth analysis showed that the dynamic approach is a feasible and sometimes even better solution for important CIs tasks, leveraged by the fact that users seem to like and enjoy it. Radar charts were found to be less effective than the Flower chart, independently on the time mapping supporting results found in first experiment. Implementation of CIs visualization design guidelines can be seen in the recent Israel ICT Index.