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Ensuring Web Interface Quality through Usability-based Split Testing

Type

Conference Paper

Year

2014

Authors

speicher

Andreas Both

Andreas Both

gaedke

Event

14th International Conference on Web Engineering

Location

Proceedings of 14th International Conference on Web Engineering (ICWE2014)

ISBN/ISSN

978-3-319-08244-8

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PDF

Abstract

Usability is a crucial quality aspect of web applications, as it guarantees customer satisfaction and loyalty. Yet, effective approaches to usability evaluation are only applied at very slow iteration cycles in today's industry. In contrast, conversion-based split testing seems more attractive to e-commerce companies due to its more efficient and easy-to-deploy nature. We introduce Usability-based Split Testing as an alternative to the above approaches for ensuring web interface quality, along with a corresponding tool called WaPPU. By design, our novel method yields better effectiveness than using conversions at higher efficiency than traditional evaluation methods. To achieve this, we build upon the concept of split testing but leverage user interactions for deriving quantitative metrics of usability. From these interactions, we can also learn models for predicting usability in the absence of explicit user feedback. We have applied our approach in a split test of a real-world search engine interface. Results show that we are able to effectively detect even subtle differences in usability. Moreover, WaPPU can learn usability models of reasonable prediction quality, from which we also derived interaction-based heuristics that can be instantly applied to search engine results pages.

Reference Copy

Maximilian Speicher, Andreas Both, Martin Gaedke: Ensuring Web Interface Quality through Usability-based Split Testing; Pages 93-110; Proceedings of 14th International Conference on Web Engineering (ICWE2014)

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Research Area

Web Engineering




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