An Investigation of User Interface Features of Crowdsourcing Applications

We investigated the user interface features of seven different types of crowdsourcing applications, which were classified along three dimensions of task type: (1) Task Structure: does the task have a well-defined solution? (2) Task Interdependence: can the task be solved by an individual or does it require a community of problem solvers? (3) Task Commitment: what level of resources is required to perform the task? Our initial investigation revealed a number of differences in the seven categories including: site searchability, online credentialing, community building features, gamification, mobility, and the use of wiki software.