Key takeaways
- →A two-phase activity separates generation from judgement: everyone submits first, nobody votes until submissions close.
- →The merge step between the phases is the whole job - budget two to four minutes for it and do it out loud so the room trusts the shortlist.
- →Cap the ballot at roughly twelve options; beyond that people vote on the first five they read and ignore the rest.
- →Give phase one 90 seconds to three minutes and phase two 45 to 60 seconds - phase two should feel faster, not longer.
- →Hide the running tally during voting when you want independent judgement, because early leaders pull later votes towards them.
- →If the vote produces a near-tie at the top, that is a result worth naming rather than a failure to resolve.
Two-phase activities are activities where the group first submits ideas openly, then votes on what the group produced. Phase one is generation and nothing is judged; phase two is selection and nothing new is added. Keeping those two jobs apart is what makes the format work, and collapsing them into one open discussion is what makes most brainstorms disappointing.
The pattern shows up everywhere once you notice it. Collect risks, then vote on which to plan for. Collect retro observations, then vote on which to fix this sprint. Collect questions for the exec, then vote on which get answered. In every case the shape is identical: an open text or word cloud collection, a short curation pause, then a poll or ranking built from the answers the room just gave you.
This guide covers the full run: what each phase is for, what to do in the gap between them, how to size the ballot, the timings that hold a room, and the four ways the format fails. Everything here works for a team of eight around a table and for three hundred people on a webinar, with the differences called out where they matter.
What a two-phase activity actually is
The defining rule is that the ballot does not exist until the group has spoken. You do not walk in with five options you wrote on the train. You walk in with a question, collect whatever comes back, and build the vote from that. That is what makes people take the second half seriously: they are choosing between their own words, not ratifying yours.
It also means you cannot fully prepare the second half, which is why facilitators avoid the format. You have to do live editing in front of an audience. The good news is that this is a learnable, mechanical skill, and the room is far more forgiving of a facilitator merging duplicates on screen than of a facilitator asking a question nobody can answer.
The closest formal ancestor is the nominal group technique, where people generate silently, contributions are pooled without attribution, and only then does the group rank them. The two-phase live activity is the same logic compressed into six or seven minutes and run on the devices people already have in their hands.
The four moves in order
Every failure of this format is a failure of one of those four moves, usually the third. Facilitators who are comfortable collecting and comfortable voting still lose the room in the two minutes between, because they go quiet and start editing while thirty people watch a screen with no narration.
Frame the question
One sentence, one subject, and a stated unit of answer: 'one risk per submission, up to three each'.
Collect in silence
90 seconds to three minutes of open submission. No discussion, no reactions, no reading answers aloud yet.
Merge and shortlist
Two to four minutes on screen: combine duplicates, cut off-topic entries, narrow to eight or twelve options.
Vote and act
45 to 60 seconds of voting, then read the top three aloud and name what happens to each one.
Phase one: collect without contaminating the pool
The goal of phase one is volume and independence. You want as many genuinely separate ideas as the room holds, which means nobody should hear anyone else's idea before their own is submitted. In an open discussion this is impossible: the first two speakers set the frame and everyone else works inside it, which is the production-blocking problem that makes verbal brainstorms weaker than silent ones of the same size.
So run phase one silently and, if the tool allows it, hide the incoming feed while people type. If you cannot hide it, put it up but tell people plainly: type your own before you read anyone else's. That instruction works better than it should.
Cap the submissions per person. Three is the number that works for most prompts. Uncapped collection in a group of forty produces two hundred entries, of which you will read maybe sixty, and the people whose entries you skipped will notice. A cap of three with forty people gives you a manageable hundred-and-twenty ceiling and forces each person to pick their strongest.
Word the prompt so the answers are comparable
Answers you cannot compare cannot be voted on. 'What do you think about the roadmap?' returns a mixture of complaints, questions, praise and predictions, and there is no honest way to build one ballot from that mixture. 'What is the biggest risk to hitting the March date?' returns one kind of thing.
Ask for a noun phrase, not a sentence, when the output is going to become a ballot option. 'Name the blocker in five words or fewer' is a real instruction and people follow it. It also saves you most of the merge work, because short entries make duplicates obvious at a glance.
The merge step is the whole job
When submissions close, you have raw material, not a ballot. Somewhere between a fifth and a third of entries will be duplicates in different words, a handful will be off-topic, and one or two will be jokes. Your job is to turn that into eight to twelve options in under four minutes, in public.
Narrate while you do it. 'I have got four versions of the same handover point, I am merging those into one and calling it handover between design and build - shout if that loses your meaning.' The narration is not politeness, it is the mechanism that keeps the shortlist legitimate. A shortlist that appears silently looks like the facilitator's opinion, and people vote on it accordingly.
Two rules make the merge defensible. First, never delete a minority view because only one person said it - a single entry that names something no one else spotted is often the most valuable line on the board. Second, when you are unsure whether two entries mean the same thing, keep them separate and let the vote decide. Over-merging is much harder to undo than under-merging.
Merge checklist for the two minutes between phases
- ✓Read every entry aloud once, quickly, before editing anything
- ✓Combine near-duplicates and say the merged wording out loud
- ✓Keep single-mention entries that name a distinct problem
- ✓Cut anything that answers a different question, and say why
- ✓Stop at twelve options, ten if the group is under fifteen people
- ✓Ask 'anything missing that you expected to see?' before opening the vote
Phase two: pick the voting mechanism to match the decision
Not every second phase is dot voting. The mechanism should follow from what you will do with the result, and picking the wrong one produces a tidy chart that nobody can act on.
If you are choosing one thing to do next, single-choice voting is honest and fast. If you are choosing a small set to carry forward, multi-select with a budget of three is better, because it lets people support a second preference without abandoning their first. If you need a defensible order rather than a winner, ranking is worth the extra thirty seconds it costs. And if the question is about strength of feeling rather than choice, a rating scale on each shortlisted item tells you more than a tally does.
| Mechanism | Use it when | Time to vote | Main risk |
|---|---|---|---|
| Single choice | One item gets resourced this week | 30-45 sec | Splits a genuine majority across similar options |
| Multi-select (3 votes) | You need a shortlist of three or four | 45-60 sec | Everything scores mid-range and nothing separates |
| Ranked order | Sequence matters, not just the winner | 60-90 sec | Drop-off on long ballots; people rank the top three properly and guess the rest |
| Rating each item | You want intensity, e.g. how painful each blocker is | 60-90 sec | Central tendency: almost everything lands at three out of five |
Hide the tally while people are voting
In phase one you kept the pool clean by stopping people reading each other's submissions. Phase two needs the same protection for the same reason. A visible running tally tells people what the room already prefers, and later voters drift towards it - the bandwagon effect in its purest form. Early votes also anchor the range people consider reasonable at all.
So hide results while the vote is open and reveal in one move when it closes. The reveal is a better moment anyway: a bar chart that appears fully formed gets a reaction, one that creeps up for sixty seconds gets a shrug.
There is one exception. When the decision has effectively been made and the vote exists to build visible commitment behind it, showing the tally as it grows is the point. Be honest with yourself about which of those two situations you are in.
Timings that hold a room
Top Tips
- Small team, eight to fifteen people: 90 seconds collecting, two minutes merging, 45 seconds voting, four minutes discussing. Eight minutes end to end.
- Workshop group, twenty to forty: two minutes collecting with a cap of three entries, three to four minutes merging, 60 seconds voting, eight minutes discussing.
- Large session, a hundred plus: three minutes collecting, four minutes merging with a co-facilitator doing the editing while you narrate, 60 seconds voting, then discuss only the top two.
- Phase two should always feel faster than phase one. If voting takes longer than collecting, your ballot is too long and people are reading rather than choosing.
- Announce the clock for both phases at the start. 'Two minutes to type, then a minute to vote' sets expectations that stop people writing essays in an open text field.
- Leave more time after the vote than you think you need. The output of a two-phase activity is a conversation, and the tally is only the prompt for it.
Four failure modes and the recovery
Nobody submits in the first twenty seconds
Almost always a prompt problem, not an engagement problem. Say the prompt again in different words, give one example answer that is deliberately mediocre so nobody feels they must be clever, and add fifteen seconds. If it is still empty, ask the question verbally to one named person and type their answer in yourself.
The pool is full of near-identical entries
Your prompt was too narrow, or the room is echoing something someone said just before you started. Merge aggressively, then run a fast second collection with a sharper prompt: 'that is the shared problem - now give me one cause of it that we control'.
The vote comes back flat, everything within two points
Your ballot options were too similar or too abstract. Do not pretend the result separates them. Say so, take the top four, and re-vote with a single choice and a constraint: 'if you could only fix one before Friday'.
The winner is something the group cannot act on
This happens when the prompt invited things outside the room's control. Do not bury it. Name it, say what you will do with it - who you will take it to and by when - then vote again on the highest-ranked item the group can move on itself.
When one phase is enough
The format costs you eight to twelve minutes and a chunk of facilitator attention. Do not spend that when a single activity does the job. If you already know the options and you only need a decision, just run the poll. If you only need to see what is on people's minds and no choice follows, just run the word cloud and talk about it.
Two-phase earns its keep when the options are genuinely unknown to you, when ownership of the shortlist matters, or when you suspect the obvious answer is not the real one. It also earns its keep in rooms where a senior voice would otherwise set the agenda in the first ninety seconds, because silent collection puts that person's idea on the board as one line among forty rather than as the frame everyone else responds to.
The shortlist is where facilitation actually happens. Everything before it is typing and everything after it is arithmetic.
Running it without a stack of tools
The practical obstacle is that most setups make you collect in one tool and vote in another, which means a copy-paste job in front of the room and a gap where the energy drains out. Session Flo is built around this specifically: an open text or word cloud activity feeds a poll built from the submitted answers, so the ballot is created from the room's words without leaving the session or asking anyone to join a second link.
Whatever you use, rehearse the handover once. Run the collection with two colleagues the day before, practise merging live, and time yourself. Four minutes of editing feels like a very long time when people are watching, and knowing that in advance is most of the battle.
Finally, close the loop. Put the shortlist and the tally in the session recap with a line against each of the top three saying who owns it. A two-phase activity that produces a winner nobody follows up teaches the room that both phases were decorative, and next time you will collect half as many entries.
Frequently asked questions
How many options should the second phase ballot have?
Eight to twelve for most groups, and ten or fewer if the group is under fifteen people. Past roughly a dozen, people stop reading the full list and vote on whatever appears in the first screenful, which quietly turns your ballot into a test of submission order rather than a measure of preference. If the merge leaves you with twenty strong options, run two votes: one to cut the list in half, one to choose.
Should phase one be anonymous?
Usually yes. Anonymous collection raises the volume of contributions and, more importantly, changes what people are willing to put on the board when the honest answer is uncomfortable. Keep the vote anonymous too. If you need names attached to commitments, collect them after the decision, in the follow-up, not in the activity itself.
What if someone submits something inappropriate?
Have a moderation view open and delete it before it reaches the shared screen. If it has already appeared, remove it, say one flat sentence acknowledging it, and carry on with the timing you announced. The recovery that works is not addressing it at length; it is showing the room that the activity continues exactly as planned.
Can you run a two-phase activity asynchronously?
Yes, and it often works better for phase one. Open the collection two days before the session, close it the evening prior, do the merge offline where you have time to be careful, and use the live session only for the vote and the discussion. You lose some of the energy of live typing and gain a much better shortlist. The one thing not to do is run both phases asynchronously, because nobody ever discusses the result.
How do you stop the loudest person dominating a two-phase activity?
The format already does most of the work: they submit the same three entries as everyone else and their name is not attached. The remaining risk is the merge and the debrief. Do not let them narrate the shortlist for you, and when you open discussion after the reveal, ask the people who voted for the second-placed option to speak before you take any general comments.
What do you do with the entries that did not make the shortlist?
Keep them and publish them with the recap. It costs you nothing and it is the difference between a shortlist people trust and one they suspect. It also gives you a starting pool for the next session on the same subject, which is how a recurring meeting builds a memory of its own.
Keep reading
- silent brainstorming and why it beats shouting ideas out — The evidence behind running phase one in silence.
- how to run dot voting to reach a group decision — A closer look at the mechanics of the voting phase.
- dot voting compared with ranked voting — Choosing between the two most common phase-two mechanisms.
- the bandwagon effect in live polls — Why the running tally should stay hidden while voting is open.
- run collect-then-vote activities in Session Flo — Build the ballot from the answers the room just submitted.