Dot voting is a shortlisting technique that allows team members to vote on the ideas that they believe are most valuable or important. This is a quick and simple way to prioritize options without lengthy discussion or debate.

Here's an example of how dot voting can be used in service design ideation:

• Let’s say a team is brainstorming ideas for a new product feature for an online marketplace. They have generated a list of 20 potential ideas, but they need to narrow down the list to the top five ideas to focus on in the next phase of development.
• To do this, each team member is given a certain number of dots, such as 5 or 10. They are asked to place their dots next to the ideas they believe are the most valuable or important. Each team member can place their dots all on one idea or spread them out among multiple ideas.
• After all the dots have been placed, the team tallies up the number of dots next to each idea, and the ideas with the most dots are prioritized for further development or inclusion in the final design.

While dot voting is a quick and simple way to prioritize options, it is important to note that it may not work in every situation. For example, it may not be effective when the options are complex or require more detailed analysis or discussion. Additionally, if there is a power dynamic or bias within the team, certain ideas may be given more or less attention than they deserve.