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Effects of Latency Jitter and Dropouts in Pointing Tasks
| Content Provider | Semantic Scholar |
|---|---|
| Author | Pavlovych, Andriy Stuerzlinger, Wolfgang |
| Copyright Year | 2009 |
| Abstract | Interactive computing systems frequently use pointi ng as an input modality, while also supporting other forms o f input. We focus on pointing and investigate the effects of variations, i.e. jitter, in the input device latenc y, as well as dropouts on 2D pointing speed and accuracy. First, we characterize the latency, latency jitter, and dropo uts in several common input technologies. Then we present an experiment, based on ISO 9241-9, where we systemati cally explore combinations of dropouts, latency, and late ncy jitter on a desktop mouse to measure how these factors aff ect human performance. The results indicate that latenc y and dropouts have a strong effect on human performance, while moderate amounts of latency jitter do not change performance in a statistically significant way in m ost cases. The findings are useful for the design of pointing technologies for interactive systems. Our results p ermit prediction of the impact of various detrimental fac tors on performance, which provides guidelines for dealing with latency, latency jitter, and dropouts. Author |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://ceur-ws.org/Vol-588/118.pdf |
| Alternate Webpage(s) | http://www.cse.yorku.ca/~andriyp/papers/paper1659.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |