Human and Machine-Readable Justifications and Justified Decisions Based on ‘YAML’

Coverage status

The pkgdown website for this project is located at

The goal of justifier is to provide a simple human- and machine-readable standard for documenting justifications for decisions. justifier was primarily developed to enable documenting the development of behavior change interventions and the planning and execution of scientific studies, but it can also be used to document decisions in organisations, enabling deriving insights in decision processes from the accumulation of decisions and types of justifications over time.

Three vignettes (in progress) are located at:

This meets the increasing demand for accountability of professionals (see e.g. Van Woerkum & Aarts, 2012).


You can install the released version of justifier from CRAN with:


You can install the development version of justifier from GitLab with:


(assuming you have remotes installed; otherwise, install that first using the install.packages function)


van Woerkum, C. and Aarts, N. (2012), ‘Accountability: New challenges, new forms’, Journal of Organizational Transformation & Social Change, 9, pp. 271–283, .