The 4Cs

Choose this exercise

Purpose: Pool distributed knowledge and distinct perspectives on a topic using four concrete categories.

Use it when: Use during project kickoff or topic discovery when participants hold fragmented information about a shared subject.

Skip it when: Skip when participants have no prior exposure to the subject or when the task requires deep individual technical analysis.

Group arrangement: Four teams of roughly equal size. For 5 to 7 participants, form 4 smaller units (pairs and solo leads) or assign multiple categories per subgroup so that all four categories are covered.

Timing: Source specifies 30 to 60 minutes. This 30-minute run sheet fits the original 3-5-3 interview cadence with time for debrief.

Materials and tools

• 1 physical whiteboard or roll of butcher paper (or digital whiteboard platform for remote and hybrid)
• 1 set of dry-erase or permanent markers for setup
• 4 pads of sticky notes
• 24 fine-tip markers
• 1 visual timer
• 1 laptop kiosk station with video call access (hybrid only)

Before participants arrive

1. Draw a large 2x2 matrix on the whiteboard, butcher paper, or digital whiteboard.
2. Label the four quadrants: Components (parts), Characteristics (features), Challenges (obstacles), and Characters (people).
3. Place sticky notes and markers at four team tables.
4. For hybrid sessions, place a laptop kiosk logged into the video call on a high table facing the room.

Say this to open

Today we explore our topic through four lenses: Components, Characteristics, Challenges, and Characters. Each team will take one lens. You will plan your approach, interview peers across the room, and capture observations on sticky notes.

How to run it

1. Define categories and form teams 4 minutes

   Explain the 4Cs with a neutral everyday example such as public transit: a Component is a bus; a Characteristic is fuel efficiency; a Challenge is schedule delays; a Character is the commuter. For 8 to 24 people, divide into four equal teams and assign one C per team. For 5 people, form 3 solo leads and 1 pair, assigning one C to each. For 6 or 7 people, form pairs and assign any remaining C across existing pairs so all four Cs are covered. Say the opening script.

2. Plan collection strategy 3 minutes

   Teams spend three minutes planning their collection approach. They agree on one or two prompt questions, decide who will interview which peers, and ready their sticky notes. For small cohorts of 5 to 7, each unit prepares questions for its assigned C or Cs. In remote setups, send teams to category breakout rooms. Call time at three minutes.

3. Conduct rapid interviews 5 minutes

   Start the five-minute timer. In physical rooms, participants circulate outside their team to interview peers about their assigned C. In remote sessions, move participants into mixed breakout rooms of 3 to 4, where each person takes turns asking questions about their assigned C. In hybrid sessions, in-person participants step up to the laptop kiosk to interview remote peers. Write one observation per sticky note. Keep exchanges brief.

4. Analyze and post to matrix 5 minutes

   Teams reconvene at their home bases or original category breakout rooms. Participants review notes, group similar points, discard direct duplicates, and post their notes into their assigned quadrant on the 2x2 matrix. Remote and hybrid participants add digital notes directly into their quadrant on the digital whiteboard. Call time at five minutes.

5. Review matrix and debrief 13 minutes

   Invite a spokesperson from each quadrant to present top findings for two minutes. Guide a whole-room debrief using the prompt questions, taking up to four contributions from the floor to wrap up on time.

Debrief questions

• Looking across all four quadrants, what pattern or surprise stands out most?
• What fact or perspective did you discover from an interview that was missing from your initial view?
• Which quadrant has the fewest notes, and what does that gap indicate?

Finished output: A completed 2x2 matrix organizing components, characteristics, challenges, and characters for the topic.

Remote

Create a shared digital whiteboard with the 2x2 matrix pre-drawn. Assign each team to an initial planning breakout room labeled by their C. For Step 3, auto-split participants into mixed breakout rooms of 3 to 4 people for 5 minutes, where each person states their assigned C and interviews room peers. Return participants to category rooms for Step 4 to cluster notes before reconvening in the main room.

Hybrid

Display the shared digital whiteboard on the main room screen. Remote participants work directly on the digital board. In-person participants post physical notes or type directly. During interviews, in-person participants rotate through the laptop kiosk station to interview remote participants.

Access and participation choices

• Participants who prefer to stay seated can serve as stationary interview hubs or table recorders while others circulate.
• Anyone may pass on answering an interview question or decline presenting findings without giving a reason.

If the session gets stuck

Participants confuse Components with Characteristics.

Clarify that Components are tangible parts or sub-units (nouns), while Characteristics are qualities or traits (adjectives or metrics).

Interview pairs get trapped in long debates rather than collecting points.

Announce a time check at two minutes reminding everyone to record notes quickly and switch partners.

Terms used here

• 4Cs: An analytical categorization method using Components, Characteristics, Challenges, and Characters.