Happy path
The happy path is the variant of a process in which everything goes as intended — no exceptions, no rework, no manual interventions. In process mining, the happy path is usually the most frequent variant by case count; surprisingly often, it accounts for less than half of cases.
The happy path is the variant the team thinks the process follows. The non-happy paths — exception handling, rework, manual workarounds — are where most operational pain hides. The discipline is to measure the happy-path share explicitly: a process where 80% of cases follow the happy path is healthy; a process where 30% follow it has significant operational drag and is a candidate for redesign. The redesign question is rarely 'how do we make the happy path faster?' (it's usually fast enough); it's 'how do we eliminate the conditions that produce non-happy variants?'.
Related terms
- Exception path
An exception path handles a deviation from the happy path — a validation failure, a missing input, an escalation, a customer dispute.
- Variant analysis
Variant analysis groups cases by the unique sequence of activities they followed and ranks variants by frequency and cost.
- Deviation analysis
Deviation analysis quantifies how often and how much an observed process diverges from its reference model — measuring missed steps, extra steps, out-of-order steps, and loops.