Logos: Precedent and Case Studies
Support arguments with relevant examples of similar situations and their outcomes.
What & why
A concrete precedent answers the quiet objection behind most proposals, which is whether the idea has survived contact with reality. Pointing to a similar case that worked lets people reason by analogy, which is faster and feels safer than evaluating an untested claim from scratch. It also shifts the burden: the approach is no longer speculative, it is something others already did. Naming a recognizable example with a specific outcome makes the evidence vivid and memorable, and lowers the perceived risk of adopting it.
Before & after
“Other companies have done similar things successfully.”
“When Zoom adopted this security framework after their 2020 issues, they reduced incidents by 90% and rebuilt user trust within 6 months.”
When you’ll use it
Citing how a rival rolled out the same policy without backlash
Backing a budget request with last quarter's pilot results
Pointing to a peer company's successful migration during a board vote
Referencing an earlier product launch to justify the rollout timeline
Pro tip
Use specific, relevant precedents with measurable outcomes and clear parallels.
Questions & answers
What are precedent and case studies in logical appeals?
How do I choose effective precedents for business presentations?
What makes precedents and case studies credible?
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