Open Space Technology

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Origins

Open Space Technology was created by Harrison Owen in the mid-1980s. After organizing a conventional conference for 250 people, Owen noticed something strange: participants told him the most valuable conversations had happened at the coffee breaks. Everything else — the panels, the keynotes, the structured sessions — had been less useful than the unstructured corridor time.¹

Owen's response was to design a format that was all coffee break. Participants propose sessions, anyone can attend any session, sessions move as people lose interest, and the entire conference is constructed by the people in the room. He called it Open Space Technology — and discovered it worked at scales from a dozen to two thousand people.

The Format

Open Space runs in three movements:

1. Convene the marketplace (45–60 min)

The whole group gathers in a circle. The facilitator names the theme — broad, generative, one sentence. Anyone with a topic they want to discuss steps into the center, announces it, writes it on a sticky, and posts it on the agenda wall. The wall has a grid: rows are time slots, columns are rooms. Each topic gets placed in a cell. In an hour, the entire conference agenda is built — by participants, in public.

2. Run the sessions (most of the time)

Sessions happen in parallel. Each is hosted by whoever proposed it. There is no required structure within sessions — they can be discussions, demos, workshops, walks, whatever the topic deserves. Participants move freely between sessions following the Law of Two Feet (see below).

3. Close (30–60 min)

Whole group reconvenes. Each session host reports headlines. Themes are surfaced, next steps named, commitments made. The whole event ends in a single shared moment.

The Four Principles and One Law

Open Space is governed by four guiding principles and one law, posted visibly throughout the event:

• Whoever comes are the right people. The session happens with whoever shows up, even if it's two.
• Whatever happens is the only thing that could have. Don't second-guess. Work with what is actually emerging.
• Whenever it starts is the right time. Don't wait for stragglers. Energy starts when energy starts.
• When it's over, it's over. Sessions can end early. If the conversation has run its course, close it.

And the law:

• The Law of Two Feet (or Mobility): if you are neither learning nor contributing, use your two feet to go somewhere you will. Walking out of a session is not rudeness; it is a positive act of self-direction.

Together, these principles dissolve the politeness that makes ordinary conferences inefficient. Sessions run on energy and interest, not on scheduling and obligation.

The Bumblebees and Butterflies

Two participant archetypes earn their own names in Open Space:

• Bumblebees move between sessions, carrying ideas with them. They cross-pollinate.
• Butterflies drift, often outside formal sessions, having impromptu conversations. They host the connections that don't fit the agenda.

Both are valid roles. The format embraces the fact that not everyone needs to be inside a session at all times.

When Open Space Works

Open Space is the right format when:

• The group is large (typically 25+).
• The topic is broad and generative.
• Participants have specific concerns the organizers cannot fully anticipate.
• Genuine self-direction is welcome — the organization will act on what emerges.

It is not the right format when:

• The agenda is constrained by external requirements.
• The group is small enough to work in one circle.
• Leadership wants to drive a specific outcome rather than discover one.

Common Failure Modes

• A theme that's too narrow. "How do we improve our deploy pipeline?" is too narrow. "How do we want to work together over the next year?" is generative. Narrow themes produce silence at the marketplace.
• Senior leaders proposing all the topics. If the loudest people in the room dominate the agenda wall, the format has been hollowed out. Coach senior people to hold back at the marketplace.
• No follow-through. Open Space generates commitments. If those commitments evaporate after the event, the format becomes performance. Plan how outputs will be carried forward.
• Treating it as theatre. Open Space requires real openness to whatever emerges. Running it as a feel-good exercise while the real decisions happen elsewhere produces cynicism.

Open Space Within Agile Work

Open Space scales down well into agile contexts. Two-day Open Space events are commonly used for:

• Annual or quarterly team strategy days.
• Cross-team alignment events in scaled organizations.
• Community of practice conferences within companies.
• The "unconference" pattern — open agenda days bolted onto traditional events.

Coaching Tips

Frame the theme broadly.

Narrow themes produce empty agenda walls. The right theme is generative, ambiguous, and invites multiple angles.

Post the principles visibly.

Print the four principles and Law of Two Feet large enough to be read across the room. Participants need to be reminded.

Coach senior people to hold back.

The first ten topics on the wall set the tone. If they're all from leaders, the format becomes a managed conference in disguise.

Plan the harvest.

Session notes, headline summaries, named commitments. Without a way to carry the output forward, the event evaporates.

Embrace the awkward opening.

The first few minutes of the marketplace feel uncomfortable. Don't fill the silence — it always breaks on its own.

Trust the format.

Open Space looks like chaos for the first hour. Resist the urge to add structure. The structure is the format itself.

Summary

Open Space Technology is a deliberate inversion of conventional event design. By letting participants build the agenda live and follow their own energy through the sessions, it consistently produces a quality of conversation that pre-planned conferences struggle to match. The format requires real openness from the organizers — they have to be willing to act on what emerges. When that openness is present, Open Space is one of the most generative formats available at scale.

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