Explanations in Everyday Software Systems

Towards a Taxonomy for Explainability Needs

authored by
Jakob Droste, Hannah Deters, Martin Obaidi, Kurt Schneider
Abstract

Modern software systems are becoming increasingly complex and opaque. The integration of explanations within software has shown the potential to address this opacity and can make the system more understandable to end-users. As a result, explainability has gained much traction as a non-functional requirement of complex systems. Understanding what type of system requires what types of explanations is necessary to facilitate the inclusion of explainability in early software design processes. In order to specify explainability requirements, an explainability taxonomy that applies to a variety of different software types is needed. In this paper, we present the results of an online survey with 84 participants. We asked the participants to state their questions and confusions concerning their three most recently used software systems and elicited both explicit and implicit explainability needs from their statements. These needs were coded by three researchers. In total, we identified and classified 315 explainability needs from the survey answers. Drawing from a large pool of explainability needs and our coding procedure, we present two major contributions of this work: 1) a taxonomy for explainability needs in everyday software systems and 2) an overview of how the need for explanations differs between different types of software systems.

Organisation(s)
Software Engineering Section
Type
Conference contribution
Pages
55-66
No. of pages
12
Publication date
2024
Publication status
Published
Peer reviewed
Yes
ASJC Scopus subject areas
General Engineering, General Computer Science, Strategy and Management
Electronic version(s)
https://doi.org/10.48550/arXiv.2404.16644 (Access: Open)
https://doi.org/10.1109/RE59067.2024.00016 (Access: Closed)