Promise vs performance
Definition
Promise vs performance
Promise vs performance is the measured gap between what you told a customer you would deliver and what you actually delivered. It is a comparison, not a score. One side is the commitment on paper. The other is the evidence from the closed period.
The written promise usually sits in a service level agreement (SLA), with a threshold and a consequence attached. Promise vs performance is what you find when you lay the delivered numbers next to that threshold.
It is not customer satisfaction scoring either. A satisfaction score tells you how the customer felt. The gap tells you what you committed to and whether the evidence matches — a different argument in a review meeting.
The point of the comparison is not blame. It is to find out whether the promise was wrong, the delivery was wrong, or the measure was never able to tell those two apart.
Key takeaways
- Promise vs performance compares a stated commitment against delivered evidence for one period.
- Both halves must be written down before the period starts, or you are scoring from memory.
- A gap is not automatically a failure, because an unrealistic promise is the other explanation.
- Repeated small gaps damage trust faster than one large miss that gets explained.
How it works
The comparison works in three moves. State the promise as a measure with a threshold, pull the delivered result from a system rather than a person, and publish both side by side on a fixed date each period.
| Promise | Measured as | Common gap |
|---|---|---|
| Answer calls in 30 seconds | Average speed of answer | Met on average, missed at peak |
| Ship in two working days | Dispatch time against order time | Measured from picking, not ordering |
| 99.5% uptime | Monitored availability minutes | Planned maintenance quietly excluded |
| A dedicated team of twelve | Named staff on the account | Shared cover during attrition |
Most gaps are definition gaps. The promise and the measurement use different clocks, different exclusions or different populations, so both sides can be honest — and still disagree.
Fix the measurement definition in the contract, not in the reporting pack. Once a number has been reported one way for two quarters, changing the definition looks like a cover up — even when it is an honest correction.
Write the exclusions down where the promise lives. Planned maintenance, force majeure, customer caused delay and volume spikes are the four that get argued about, and all four are cheap to agree in advance.
Pick the measures before you need them. A key performance indicator (KPI) set agreed at contract signature is far harder to argue with than one assembled after a bad quarter.
Regulators treat an unmet promise as an advertising problem. The Federal Trade Commission tells businesses they must support advertising claims with solid proof, and health related products draw the closest scrutiny.
Public bodies publish the comparison rather than defending it privately. The federal customer experience programme records a directive for 17 agencies to take 36 specific actions to improve service delivery.
Feeling and fact both belong in the pack. Put the customer satisfaction score next to the delivered numbers, because a met threshold with falling satisfaction usually means the threshold measures the wrong thing.
Publish on a fixed date whether the news is good or not. A report that appears promptly in strong months and late in weak ones tells the customer everything before they have read a single number.
Money can carry the gap. performance based pricing ties part of the fee to the delivered result, which turns the comparison into a monthly settlement instead of a quarterly argument.
Examples
Gaps have recognisable shapes, and most of them are built into how the measure was defined. Four cases cover the ones that show up in outsourcing reviews month after month.
A contact centre in the Philippines. The contract promises an average answer time of 30 seconds, and the monthly pack shows the average met while the morning peak misses it on most working days.
A logistics provider. Two day delivery is promised from the order, measured from dispatch, and the whole gap lives in a warehouse queue that nobody reports on.
A software vendor. Uptime is promised at 99.5% and reported at 99.6%, but planned maintenance is excluded, so the availability customers actually experienced is lower than both figures.
A staffing provider. A promise of twelve dedicated staff is met on the headcount report and missed in practice — two of the twelve cover another account three days a week.
Where a gap repeats, a customer experience audit traces it to the step that creates it rather than the team that happens to report it.
Related terms
- service level agreement (SLA): the written promise with thresholds and consequences; the gap is what measurement finds against it.
- key performance indicator (KPI): the measure itself, agreed up front so both sides read the same number.
- customer satisfaction score: how the customer felt, which can fall while every threshold is still met.
- brand consistency framework: keeps the promise itself consistent wherever it gets made.
- net customer effort: how hard the customer had to work, a gap signal no threshold catches.
FAQ
What does promise vs performance mean?
It is the measured gap between what was committed and what was delivered in a period. Both halves have to be written down before the period starts.
Is promise vs performance the same as an SLA?
No. The agreement states the promise and its consequence, while promise vs performance is the comparison you run against it each period. One is the contract term and the other is the evidence against it.
What causes most performance gaps?
Definitions. The promise and the measurement often use different clocks, exclusions or populations, so both sides can be truthful and still disagree completely. Agreeing the definition up front removes most of them.
How often should you review the gap?
Monthly for operational measures and quarterly for commercial ones. Anything slower and the explanation arrives after the customer has already made up their mind.
What should you do when the gap is real?
Fix the cause or renegotiate the promise, because pretending both still hold costs more. Say which one you are doing, in writing, in the same review.
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