What is segmentation? (simple definition + SaaS examples)

Segmentation means splitting a big group into smaller groups that behave differently. You do it so you can change one variable at a time and understand what is actually working.

Simple definition

A segment is a subset of customers (or affiliates) that share a trait you can act on, like plan type, channel, intent, or sales cycle.

SaaS segmentation examples

• Self-serve vs sales-led customers (different cycle lengths).
• Trial users vs paid users (different activation actions).
• Affiliate partners: content creators vs coupon sites vs agencies.

A simple segmentation model for affiliates

• Tier A: content partners (pay on net revenue, no coupons).
• Tier B: creators with codes (coupons allowed, tighter override rules).
• Tier C: coupon sites (only if you want them; explicit policy).

Final takeaway and next step

Segmentation is how you keep rules explainable. Next step: pick one segmentation dimension and write one payout rule per segment.