Evidence-Based Timelines for Agile Project Retrospectives - A Method Proposal

Retrospective analysis of agile projects can support identification of issues through team reflection and may enable learning and process improvements. Basing retrospectives primarily on experiences poses a risk of memory bias as people may remember events differently, which can lead to incorrect conclusions. This bias is enhanced in project retrospectives which cover a longer period compared to iteration retrospectives. To support teams in recalling accurate and joint views of projects, we propose using an evidencebased timeline with historical data as input to project retrospectives. The proposed method was developed together with a large software development company in the telecommunications domain. This paper outlines a method for visualizing an evidence-based project timeline by illustrating aspects such as business priority, iterations and test activities. Our method complements an experience-based approach by providing objective data as a starting point for reflection and aims to support objective analysis of issues and root causes.