Understand the decision
A job title is not a complete customer segment. Two engineers at the same level can have very different needs when one has an interview tomorrow and the other wants a long-term study habit. Describe the situation that creates demand, the result the person values, and the limits that affect choosing a solution.
The user receives the experience. The buyer decides whether to spend. A beneficiary may receive value without operating the software. These roles can be the same person, but in team tools and sponsored products they often differ. Treating them as one person produces messages that satisfy neither the practitioner nor the decision maker.
Put it to work
Write the user, buyer, trigger, and current alternative separately. Add one exclusion: someone you cannot serve well with the current offer. Exclusions help you interpret feedback. A person outside the segment declining the offer may say little about the chosen market.
Validate this profile against actual accounts of behavior. Ask who approved the last purchase, what made the timing important, and what prevented an alternative from working. Revise the profile when the evidence changes. An ideal customer profile is a working decision aid, not an immutable description of a person.
Common mistake
Assuming the most enthusiastic user has purchase authority or represents every potential customer.
Put this to work
Save the customer, buyer, trigger, and one exclusion.
Sources and further study
Original teaching informed by public material. These authors do not teach, endorse, or certify the RevStart course.