Improving the Usability of Complex Life Science Software : Designing for a significant difference in skill among users in a scientific work domain

Abstract: The usability of complex scientific software is often lacking as it tends to not receive a high priority in development, in addition to the fact that developers are usually engineers with a low level of knowledge in usability areas. The study examines such a software in an environment with a significant difference in terms of user skill, which creates some issues in terms of improving usability. Novice users need to have a higher degree of learnability to better understand how to operate the system, but this cannot reduce the overall level of complexity since it is required by experienced users to perform more advanced tasks. To find out how usability could be increased under these conditions, qualitative interviews were conducted with users of the software. The gathered data was applied to a thematic analysis that was used as a foundation in the development of a functional prototype for a new design, which was iteratively tested and evaluated with users. The design integrates a somewhat novel feature through a zoom-in function as an adaptable view, where the user can visualize a more complex layer of the software. The study also highlights the importance of correctly identifying central user activities in an environment with a high difference in complexity among tasks, to make more informed design decisions around visual priority.