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Glossary

Definitions of every term used on this material.

5

5 Whys
A related root-cause technique, not part of the Tree of Influence: ask "why?" about a problem, then about each answer, until you reach a cause you can act on. It follows one chain of causes. See Compared with other frameworks.

A

Action / Intervention
A node type for the stepping stones between problems and outcomes: concrete actions, deliberate interventions, and half-way problems. Drawn amber, with the marker [A]. See Action / Intervention.
Anchor node
The single node a group starts from in the origin pattern: a problem everyone knows, or an outcome everyone wants. See Origin pattern.
Anti-pattern
A common way a tree goes wrong. The reference describes three: solution-dumping, the shortcut, and runaway scale. See Solution-dumping.
Arrow
A directional connection between two nodes, pointing from source to target. Every arrow has exactly one head. Its line style shows its relationship. See Arrow styles.
Artifact / Deliverable
A node type for things that exist, should exist, or have been proposed: tools, systems, documents, policies. Artifacts can connect to any kind of node. Drawn indigo, with the marker [D]. See Artifact / Deliverable.
Attacks
A refined relationship: an artifact aims to resolve a specific problem. Drawn as a dotted arrow from the artifact to the problem. See Attacks.

B

Blocked outcomes view
A view of the full tree filtered to one outcome: every node without a path to that outcome is hidden. See Blocked outcomes view.
Blocks / Impedes
A refined relationship: the source prevents the target from being achieved. Drawn as a dashed arrow. See Blocks / Impedes.
Branches
In the tree metaphor, the action / intervention nodes that connect roots to leaves. See Colors and shapes.

C

Causal loop diagram
A related framework from systems thinking, not part of the Tree of Influence: quantities connected by arrows marked + or -, drawn to reveal feedback loops. See Compared with other frameworks.
Cause-and-effect diagram
See Ishikawa diagram.
Causes
See Influences.
Challenge pattern
A facilitation pattern: question a connection that looks too obvious, to find the conditions and hidden causes behind it. See Challenge pattern.
Connect
The fourth step of a session: draw directional arrows between nodes, and color each node as its type becomes clear. See Connect.
Construction
The open mode of building a tree, when any idea goes on the board, in any wording, with any kind of influence. Followed by refinement. See Core principles.
Convergence pattern
A facilitation pattern: look for connections between clusters the group has been treating as separate. See Convergence pattern.
CRT
See Current Reality Tree.
Current Reality Tree
A related framework from the Theory of Constraints, not part of the Tree of Influence: works backward from a list of undesirable effects, with if-then logic, to the one core problem most of them share. See Compared with other frameworks.
Cycle
Two or more nodes that seem to influence each other in a loop. A cycle is a sign of a hidden cause, not something to draw with special notation. See Cycles and graph shape.

D

Decompose
The sixth step of a session: break the highest-priority nodes into deep-dive sub-trees. Where the handoff from understanding to action begins. See Decompose.
Deep-dive session
A follow-up session that builds a deep-dive sub-tree around one node of the full tree, when the node needs more time than Decompose has. See Running a deep-dive session.
Deep-dive sub-tree
A view that decomposes one node of the full tree into its own tree. The node it comes from is drawn with a double border. See Deep-dive sub-tree.
Defer-to-refinement move
A way to handle disagreement during construction: hear both sides briefly, make a pragmatic call, and promise to revisit it during refinement. See Difficult situations.
Deliverable
See Artifact / Deliverable.
Desired State / Outcome
A node type for a condition the group wants to reach: a goal, a target, or a behavior people want to see. Drawn forest green, with the marker [O]. See Desired State / Outcome.
Dual-anchor seeding
Starting a session from two separate, unconnected lists, problems and outcomes, and discovering everything in between during the session. See Core principles.

E

Evolution pattern
A facilitation pattern for updating a tree: walk the previous version node by node and ask whether each one is still true, changed, or resolved. See Evolution pattern.

F

Fault tree analysis
A related engineering tool, not part of the Tree of Influence: breaks an undesired event down through AND and OR gates into the failures that could cause it, often with a probability for each. See Compared with other frameworks.
Fishbone diagram
See Ishikawa diagram.
Five Whys
See 5 Whys.
Flow
The direction a tree grows, from roots toward outcomes: bottom to top, or left to right. Every legend states it. See Orientation.
Frame
A labeled area that groups related nodes, such as a cluster or the parking lot. A reading aid with no meaning of its own. See Runaway scale.
Fruit
In the tree metaphor, the artifact / deliverable nodes: things the tree produces or carries. See Colors and shapes.
Full tree
The primary view: the whole problem space on one canvas. Every other view is derived from it or zooms into it. See Full tree.

G

Group
The third step of a session: cluster related and duplicate nodes without deleting any contribution. See Group.
Group-then-rank
A prioritization technique: group nodes by theme first, then rank the groups instead of voting on individual nodes. See Prioritize.

H

Half-way problem
An intermediate state that is partly a problem and partly progress, such as "Faster laptop setup." A variety of action / intervention. See Action / Intervention.

I

Impact mapping
A related planning tool, not part of the Tree of Influence: starts from one goal and lists the actors, the behavior changes, and the deliverables that could reach it. See Compared with other frameworks.
Impedes
See Blocks / Impedes.
Influences
The default relationship: the source has some effect on the target. Drawn as a solid arrow. "Leads to" and "causes" are drawn the same way. See Influences.
Interrelationship digraph
A related framework, not part of the Tree of Influence: a group draws influence arrows among a short list of issues, then counts them to find the key driver and the key outcome. See Compared with other frameworks.
Intervention
See Action / Intervention.
Ishikawa diagram
A related root-cause tool, not part of the Tree of Influence: one effect at the head, with its possible causes hanging from bones grouped into categories. Also called a fishbone or cause-and-effect diagram. See Compared with other frameworks.

L

Leads to
See Influences.
Leaves
In the tree metaphor, the desired state / outcome nodes: what the tree grows toward. See Colors and shapes.
Legend
The key that explains a tree: its node colors, arrow styles, text markers, flow, and context. Every tree has one. See The legend.
Living document
A tree kept in use across planning cycles and updated by removing, adding, and restructuring nodes and arrows, until it has done its job. See A living document.

M

Minimum viable tree
What a diagram needs to count as a Tree of Influence: nodes, directional arrows, a construction process that moves from open contribution toward refinement, and a legend. See Minimum viable tree.

N

Node
One element of the problem space, written on a sticky note or rectangle. Its type comes from its role in the tree, not from its wording. See Colors and shapes.
Node type
The role a node plays: root / problem, action / intervention, desired state / outcome, or artifact / deliverable. Shown by color. See Colors and shapes.

O

Opportunity solution tree
A related product discovery tool, not part of the Tree of Influence: one desired outcome at the top, with opportunities, solutions, and assumption tests below it. See Compared with other frameworks.
Orientation
Which way a tree is drawn: vertical, with roots at the bottom, or horizontal, with roots on the left. See Orientation.
Origin pattern
A facilitation pattern: start from a single anchor node and expand outward from it. See Origin pattern.
Outcome
See Desired State / Outcome.

P

Parking lot
An area of the board for nodes that do not fit yet, such as solutions or out-of-scope ideas. Nodes are parked, not deleted, and can return to the tree later. See Group.
Pre-seeding
Placing known problems, outcomes, and work in progress on the board before a session, as hypotheses for the group to react to. See Prepare.
Prepare
The first step of a session, done by the facilitator beforehand: set up the board, the legend, and the parking lot, and pre-seed the board. See Prepare.
Prioritization pattern
A facilitation pattern: read voting results together with the group and discuss the surprises, not just the tallies. See Prioritization pattern.
Prioritize
The fifth step of a session: participants vote or rank to show which nodes matter most. See Prioritize.
Problem
See Root / Problem.
Problem tree
A related planning tool from international development, not part of the Tree of Influence: one core problem in the trunk, its causes as roots, and its effects as branches. See Compared with other frameworks.
Promote-the-tension move
A way to handle disagreement that reveals a circular or two-way relationship: turn the tension into a new node or pattern to investigate. See Difficult situations.

R

Refinement
The mode after construction, when the group sorts, types, and sharpens what is on the board, and introduces refined arrow styles if they matter. See Core principles.
Relations diagram
See Interrelationship digraph.
Relationship
The meaning of an arrow. There are three: influences, the default, and the optional refinements blocks / impedes and attacks. See Arrow styles.
Review
A session that brings an existing tree back to a group and updates it: resolved problems are removed, new nodes are added, and arrows are redrawn. See Evolving the tree.
Root / Problem
A node type for a problem, root cause, or undesirable current state. Drawn dark brown, with the marker [P]. See Root / Problem.
Roots
In the tree metaphor, the root / problem nodes: hidden, foundational, and where the tree grows from. See Colors and shapes.
Runaway scale
An anti-pattern: the tree grows too large for anyone to read. See Runaway scale.

S

Seed
The second step of a session: participants fill the board with a high volume of diverse nodes, without judging them. See Seed.
Shape variant
An optional accessibility aid: a different node shape for each type, documented in the legend. See Accessibility considerations.
Shortcut
An anti-pattern: the tree collapses into direct problem, action, outcome paths with no depth. See The shortcut.
Solution-dumping
The most dangerous anti-pattern: the board fills with solutions instead of problems, and the tree ends up confirming plans the group already had. See Solution-dumping.
Starter board
A digital board set up before a session, with a legend, node colors, default arrow, and a parking lot already in place. See Starter boards.
Sticky note
The physical or digital note a node is written on. Every node uses the same shape. See Colors and shapes.
Strategy map
A related tool from the Balanced Scorecard, not part of the Tree of Influence: strategic objectives in 4 perspectives, linked by arrows of cause and effect. See Compared with other frameworks.

T

Text marker
A short label inside a node that names its type without color: [P], [A], [O], or [D]. See Accessibility considerations.
Theory of change
A related planning and evaluation tool, not part of the Tree of Influence: maps backward from a long-term goal through the preconditions needed to reach it. See Compared with other frameworks.
Tree
Written in lowercase, a specific diagram someone built: "your tree," "the onboarding tree." See Minimum viable tree.
Tree of Influence
A diagramming and facilitation technique for mapping how problems, actions, and desired outcomes influence each other. Always capitalized and written in full. See What it is and is not.

U

Untyped node
A node whose type has not been decided yet, left white or uncolored. Valid during construction. See Colors and shapes.

V

Version
A saved copy of a tree, labeled with its date or planning cycle. Saved versions are kept unchanged; only the current version is edited. See A living document.
View
A perspective on the problem space: the full tree, a blocked outcomes view, or a deep-dive sub-tree. See Full tree.
Vote
A mark a participant places on a node they consider important, during Prioritize. Drawn as a dot. See Prioritize.

Z

Zoom pattern
A facilitation pattern: treat a single node as its own tree, to see what is inside it. See Zoom pattern.