Introduction
As discussed in yesterday's post, dot voting is a popular technique for prioritizing ideas and making decisions in agile teams. Today I wanted to discuss another effective method, known as plus-minus voting. Plus-minus voting can offer additional insights and facilitate more nuanced discussions.
How Plus-Minus Voting Works
In plus-minus voting, participants are asked to consider each option and assign a plus (+) for each positive aspect or items they agree with, and a minus (-) for each negative aspect or items they disagree with. The option with the highest net score (plusses minus minuses) is typically considered the best choice. This technique can be used for a variety of cases, such as quick democratic decision making, or an alternative approach to prioritization of discussion topics.
Benefits of Plus-Minus Voting
Benefits of this technique include:
- Balanced Perspective: Plus-minus voting encourages participants to consider both the advantages and disadvantages of each option.
- Nuance and Complexity: Unlike dot voting, which is a simple up-or-down vote, plus-minus voting allows for a more nuanced evaluation of options.
- Constructive Discussion: The process of assigning pluses and minuses can spark discussion and debate, leading to a deeper understanding of the issues.
- Flexibility: Plus-minus voting can be adapted to different decision-making scenarios, such as prioritizing features, selecting design options, or resolving conflicts.
Using Plus-Minus Voting in Agile Teams
There are many scenarios where you may choose to use Plus-Minus voting. I've listed a few below, but there could be many more opportunities to use this technique.
- Prioritizing Backlog Items: Use plus-minus voting to prioritize product backlog items based on factors like value, complexity, and risk.
- Making Design Decisions: Evaluate design options by considering their pros and cons.
- Resolving Conflicts: Use plus-minus voting to identify the most effective solution to a problem.
- Retrospective Planning: Analyze past sprints and identify areas for improvement.
Combining Plus-Minus Voting with Other Techniques
To further enhance the decision-making process, you can combine plus-minus voting with other techniques as well. For example:
- Dot Voting: Use dot voting to quickly narrow down the list of options before using plus-minus voting for a more detailed evaluation.
- Weighted Scoring: Assign weights to different factors (e.g., importance, feasibility, risk) and then calculate a weighted score for each option. This can help factor in real world impacts (the impact of weighting), on top of personal thoughts (plus-minus voting).
Summary
Plus-minus voting isn't right for every scenario, but it is one more tool agile leaders can include in their toolbox for when the situation arises. By understanding the benefits and limitations of plus-minus voting, agile teams can make more informed and be more effective in their decision making process.