Make the third alternative tangible with a prototype or model
Turn an abstract third-alternative idea into something both parties can react to together.
Key takeaways
- What it is: Turn an abstract third-alternative idea into something both parties can react to together.
- Why it works: Abstract agreement on criteria often dissolves when a concrete proposal appears, because each side imagines different things. A rough prototype — a diagram, a written scenario, a role-play — forces shared reality. Reactions to the model surface assumptions that were invisible in the abstract conversation, allowing them to be addressed before commitment.
- Evidence: Plausible mechanism, limited direct outcome data.
- Avoid: Announcing "we have a third alternative" after verbal agreement, then discovering each party imagined a different implementation — prototyping prevents this before commitment locks both sides in.
Why it works
Abstract agreement on criteria often dissolves when a concrete proposal appears, because each side imagines different things. A rough prototype — a diagram, a written scenario, a role-play — forces shared reality. Reactions to the model surface assumptions that were invisible in the abstract conversation, allowing them to be addressed before commitment.
How to do it
- 1Once a candidate solution emerges, make it concrete: write it as a one-paragraph scenario, draw it, or role-play it.
- 2Ask both parties to react specifically to the model, not to the general idea.
- 3Treat reactions as refinement data, not rejection — update the model and check again.
- 4Declare the solution adopted only after both parties have reacted to the same concrete version.
What the evidence says
MechanisticPrototyping as a reality-testing tool is well established in design thinking and conflict mediation. Making proposals tangible reduces the ambiguity that allows each party to over-optimistically assume the deal means what they want.
Honest caveat: Evidence base is design and mediation practice literature; controlled outcome research comparing prototyping to abstract agreement in conflict resolution is sparse.
Common mistake
Announcing "we have a third alternative" after verbal agreement, then discovering each party imagined a different implementation — prototyping prevents this before commitment locks both sides in.
IX Coach helps you draft a written scenario of the proposed third alternative so both parties can react to the same text before the agreement is finalized.
Practice this with IX Coach →