The Universal 9-Phase Job Taxonomy: From Define to Conclude

Jobs-to-be-Done (JTBD) theory establishes that customers don't buy products—they "hire" them to make progress in a given circumstance. To model this progress with mathematical precision, we use the Universal 9-Phase Chronological Taxonomy.

The 9 Universal Phases

Data Matrix & Comparison Table

#	Phase	Functional Purpose	Example Job Step
---	---	---	---
1	Define	Formulate intent, constraints, and success criteria	Define target performance parameters
2	Locate	Gather required data, tools, and inputs	Locate credential certificates
3	Prepare	Stage the execution environment	Configure environment variables
4	Confirm	Validate preconditions and readiness	Confirm schema compatibility
5	Execute	Perform the core functional transformation	Execute database migration
6	Monitor	Track output telemetry and performance	Monitor error logs and query latency
7	Resolve	Troubleshoot runtime anomalies	Resolve deadlock exceptions
8	Modify	Adjust parameters and optimize	Tune cache expiration parameters
9	Conclude	Persist outputs and notify stakeholders	Log audit summary & send notification

Why This Taxonomy Never Becomes Obsolete

Because this 9-phase sequence is completely solution-agnostic, it describes what the human or agent is fundamentally trying to accomplish regardless of technology changes.