Clear ideas for complex systems
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Connected language

Glossary

Clear definitions for the concepts used across systems thinking.

A

Agentic AI

Agentic AI uses models with goals, memory, tools, feedback, and control logic to perform multi-step actions in an environment.

C

Causal Loop Diagram

A causal loop diagram maps hypothesized causal relationships and feedback loops that may generate system behavior.

Complex Adaptive System

A complex adaptive system contains interacting agents whose adaptation produces changing, emergent collective behavior.

F

Feedback Loop

A feedback loop is a closed chain of causal influence in which a change eventually affects its own future state.

L

Leverage Point

A leverage point is a place in a system where an intervention can meaningfully change patterns of behavior.

R

Root Cause Analysis

Root cause analysis traces a failure toward contributory causes and corrective actions intended to reduce recurrence.

S

Stock and Flow

A stock is an accumulation at a point in time; flows are rates that increase or decrease that accumulation.

System Boundary

A system boundary is an explicit analytical choice about what is included, excluded, or treated as external.

System Delay

A system delay separates a causal change from information, action, or visible outcome and can produce overshoot or oscillation.

W

Wicked Problem

A wicked problem has contested definitions, interacting causes, conflicting values, and no final test of a complete solution.