# Thinking Frameworks

> Apply 180+ thinking frameworks to any problem. Use when analyzing, deciding, strategizing, brainstorming, evaluating evidence, designing solutions, or coaching others through structured thinking. Covers mental models, decision-making, strategy, creativity, systems thinking, cognitive biases, and more — organized into 15 categories with guidance on when to use each. Do not use when a direct factual answer suffices.

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- Author: danieldekay (https://skillmd.com/u/danieldekay)
- Updated: 2026-09-10
- Page: https://skillmd.com/skills/danieldekay/thinking-frameworks

---


# 🧠 Thinking Frameworks

A comprehensive toolkit of **180 thinking frameworks** across 15 categories. Use this skill whenever you need to apply structured thinking to a problem — whether analyzing, deciding, creating, evaluating, or coaching.

## When to Use This Skill

- Solving complex or ambiguous problems
- Making high-stakes decisions under uncertainty
- Brainstorming or generating creative solutions
- Evaluating evidence, arguments, or research
- Strategic planning and competitive analysis
- Coaching or teaching structured thinking
- Diagnosing root causes of failures
- Understanding system dynamics and feedback
- Identifying and countering cognitive biases
- Designing products, services, or experiences

## Core Workflow

### Step 1: Classify the Situation

Use the **Cynefin Framework** (Dave Snowden) to determine what kind of problem you're facing:

| Domain | Characteristics | Approach |
|--------|----------------|----------|
| **Clear** | Obvious cause-effect, best practices exist | Apply known frameworks directly |
| **Complicated** | Cause-effect requires expertise/analysis | Use analytical + strategy frameworks |
| **Complex** | No predictable cause-effect, emergent | Use systems thinking + experimentation |
| **Chaotic** | No cause-effect, crisis | Act first (OODA Loop), then stabilize |
| **Confused** | Don't know which domain you're in | Decompose the problem; gather more context |

### Step 2: Select Frameworks by Purpose

| Purpose | Best Frameworks | Reference |
|---------|----------------|-----------|
| **Define the problem** | 5 Whys, Fishbone, MECE, Issue Tree, SCQA | [problem-solving.md](references/problem-solving.md) |
| **Make a decision** | Cynefin, OODA, Eisenhower, Pre-Mortem, Decision Tree | [decision-making.md](references/decision-making.md) |
| **Plan strategy** | SWOT, Five Forces, Blue Ocean, Wardley Map, Three Horizons | [strategy.md](references/strategy.md) |
| **Generate ideas** | Six Thinking Hats, SCAMPER, TRIZ, Lateral Thinking, Morphological Analysis | [creative-thinking.md](references/creative-thinking.md) |
| **Evaluate evidence** | Bayesian Updating, Falsification, Red Team, CRAAP Test | [scientific-methods.md](references/scientific-methods.md) |
| **Understand systems** | Feedback Loops, Leverage Points, Iceberg Model, Causal Loops | [systems-thinking.md](references/systems-thinking.md) |
| **Counter biases** | System 1/2, Confirmation Bias, Anchoring, Framing, Groupthink | [cognitive-biases.md](references/cognitive-biases.md) |
| **Learn & teach** | Bloom's Taxonomy, Feynman Technique, Zettelkasten, Spaced Repetition | [learning.md](references/learning.md) |
| **Design solutions** | Design Thinking, Double Diamond, Lean Startup, Kano Model | [design-innovation.md](references/design-innovation.md) |
| **Lead & change** | Radical Candor, Psychological Safety, Kotter, SCARF | [leadership.md](references/leadership.md) |
| **Communicate** | Pyramid Principle, Steel Manning, Toulmin Model, NVC | [communication.md](references/communication.md) |
| **Reason quantitatively** | Compounding, Power Laws, Margin of Safety, Fermi Estimation | [quantitative-models.md](references/quantitative-models.md) |
| **Reason about markets** | Supply/Demand, Game Theory, Incentives, Opportunity Cost | [economics.md](references/economics.md) |
| **Reason ethically** | Utilitarianism, Veil of Ignorance, Categorical Imperative, Ikigai | [ethics.md](references/ethics.md) |

### Step 3: Apply the Framework

1. **State the problem** clearly before selecting a framework
2. **Choose 2-3 complementary frameworks** — the power is in combination (Munger's Latticework principle)
3. **Walk through the framework step by step** — don't just name it, *use* it
4. **Show your reasoning** — make the framework application explicit and transparent
5. **Evaluate the output** — does the framework's output match reality? If not, try a different lens

### Step 4: Multi-Framework Analysis (Advanced)

For complex problems, stack frameworks deliberately:

```
Problem → [Classify: Cynefin] → [Diagnose: 5 Whys + Fishbone]
       → [Generate: SCAMPER + Six Hats] → [Evaluate: Pre-Mortem + Second-Order Thinking]
       → [Decide: Decision Matrix] → [Communicate: Pyramid Principle]
```

## 🌳 Decision Tree — "Which Framework Do I Need?"

Start here and follow the branches:

```
What are you trying to do?
│
├─► UNDERSTAND a problem
│   ├─ Is the problem well-defined?
│   │   ├─ YES → 5 Whys, Fishbone, Issue Tree
│   │   └─ NO  → MECE to structure it, then SCQA to frame it
│   ├─ Is it a system/recurring pattern?
│   │   ├─ YES → Feedback Loops, Iceberg Model, Causal Loop Diagrams
│   │   └─ NO  → First Principles, Root Cause Analysis
│   └─ Do you need to quantify it?
│       ├─ YES → Fermi Estimation, Pareto (80/20)
│       └─ NO  → Thought Experiments, Analogical Thinking
│
├─► MAKE A DECISION
│   ├─ How complex is the situation? → START: Cynefin Framework
│   │   ├─ CLEAR     → Apply best practice directly (Eisenhower Matrix)
│   │   ├─ COMPLICATED → Decision Matrix, Cost-Benefit, Kepner-Tregoe
│   │   ├─ COMPLEX   → Scenario Planning, Probe-Sense-Respond
│   │   └─ CHAOTIC   → OODA Loop (act fast), then stabilize
│   ├─ Is the decision reversible?
│   │   ├─ YES (Type 2) → Satisfice, move fast, 10/10/10 Rule
│   │   └─ NO (Type 1)  → Pre-Mortem, Decision Tree Analysis, Regret Minimization
│   ├─ Are cognitive biases a risk?
│   │   ├─ YES → Two-Track Analysis, Red Team, check System 1/2
│   │   └─ NO  → Proceed with analytical frameworks
│   └─ Multiple stakeholders involved?
│       ├─ YES → Vroom-Yetton-Jago, Delphi Method, Six Thinking Hats
│       └─ NO  → Individual decision frameworks above
│
├─► GENERATE IDEAS / CREATE
│   ├─ Need volume (lots of ideas)?
│   │   ├─ SOLO   → SCAMPER, Mind Mapping, Random Entry
│   │   └─ GROUP  → Brainstorming, Brainwriting (6-3-5)
│   ├─ Need breakthrough / radical innovation?
│   │   └─ TRIZ, Lateral Thinking, Adjacent Possible, Reverse Brainstorming
│   ├─ Need systematic coverage?
│   │   └─ Morphological Analysis, Concept Fan, Osborn-Parnes CPS
│   └─ Need to evaluate & filter ideas?
│       └─ Six Thinking Hats (Black hat for risks, Yellow for benefits)
│
├─► PLAN STRATEGY
│   ├─ Internal analysis → SWOT, Core Competencies, McKinsey 7S, Balanced Scorecard
│   ├─ External/market analysis → Porter's Five Forces, PESTLE, Wardley Mapping
│   ├─ Growth options → Ansoff Matrix, Blue Ocean, Three Horizons
│   ├─ Business model → Business Model Canvas, Value Proposition Canvas, JTBD
│   └─ Execution → OKRs, Hoshin Kanri, Stage-Gate
│
├─► COMMUNICATE / PERSUADE
│   ├─ Presenting a recommendation → Pyramid Principle, SCQA
│   ├─ Debating / evaluating arguments → Steel Manning, Toulmin Model
│   ├─ Resolving conflict → Nonviolent Communication (NVC)
│   └─ Aligning a team → Commander's Intent, Ethos-Pathos-Logos
│
├─► LEAD / MANAGE CHANGE
│   ├─ Launching a change initiative → Kotter's 8-Step, ADKAR
│   ├─ Giving feedback → Radical Candor (Care + Challenge)
│   ├─ Building team performance → Tuckman's Stages, Psychological Safety
│   ├─ Adapting leadership style → Situational Leadership, SCARF Model
│   └─ Assigning ownership → DRI (Directly Responsible Individual)
│
├─► LEARN / TEACH
│   ├─ Learning something new → Feynman Technique, Shu-Ha-Ri
│   ├─ Designing curriculum → Bloom's Taxonomy, Fink's Taxonomy
│   ├─ Retaining knowledge → Spaced Repetition, Zettelkasten
│   ├─ Coaching someone → GROW Model, Deliberate Practice
│   └─ Reflecting on experience → Kolb's Cycle, Double-Loop Learning, Retrospective
│
└─► CHECK YOUR THINKING
    ├─ Am I biased? → Confirmation Bias checklist, Anchoring awareness
    ├─ Am I overconfident? → Dunning-Kruger, Circle of Competence
    ├─ Am I thinking too narrowly? → Inversion, Second-Order Thinking, Via Negativa
    ├─ Am I in a group? → Groupthink check, Social Proof awareness
    └─ Am I being ethical? → Veil of Ignorance, Categorical Imperative, Ikigai
```

## ⚡ Situational Quick-Picker

When you know the *situation* but not which framework:

| Situation | Time Pressure | Stakes | Start With | Then Add |
|-----------|:------------:|:------:|------------|----------|
| Boss asks "what should we do?" | ⏱ High | 🔴 High | Pyramid Principle + SCQA | Pre-Mortem |
| Root-cause of production failure | ⏱ High | 🔴 High | 5 Whys → Fishbone | 8D, Fault Tree |
| Annual strategy planning | ⏱ Low | 🔴 High | SWOT + Five Forces → Wardley Map | Blue Ocean, Three Horizons |
| Brainstorm for new product ideas | ⏱ Low | 🟡 Med | Design Thinking → SCAMPER | TRIZ, Kano Model |
| Choosing between 3 job offers | ⏱ Med | 🔴 High | Decision Matrix + 10/10/10 | Regret Minimization, Ikigai |
| Team conflict / dysfunction | ⏱ Med | 🟡 Med | Tuckman's + Psychological Safety | Radical Candor, NVC |
| Evaluating a research claim | ⏱ Low | 🟡 Med | CRAAP Test + Bayesian Updating | Red Team, Falsification |
| "We've always done it this way" | ⏱ Low | 🟡 Med | First Principles + Inversion | Second-Order Thinking |
| Estimating unknowns | ⏱ Med | 🟢 Low | Fermi Estimation + Pareto | Probabilistic Thinking |
| Launching organizational change | ⏱ Low | 🔴 High | Kotter's 8-Step + ADKAR | SCARF, Situational Leadership |
| Personal decision paralysis | ⏱ Med | 🟡 Med | Satisficing vs. Maximizing | Stoic Dichotomy, Regret Min. |
| Need to learn a new domain fast | ⏱ High | 🟢 Low | Feynman Technique + Mind Mapping | Bloom's, Zettelkasten |
| Designing a fair policy | ⏱ Low | 🔴 High | Veil of Ignorance + Utilitarianism | Categorical Imperative |
| System behaving unexpectedly | ⏱ Med | 🟡 Med | Systems Thinking + Iceberg Model | Leverage Points, Emergence |
| Startup go/no-go decision | ⏱ Med | 🔴 High | Lean Startup + MVP + JTBD | Business Model Canvas |

## The Essential 10 — Start Here

These 10 frameworks cover ~60% of situations (per Munger's "heavy freight" principle):

| # | Framework | One-liner |
|---|-----------|-----------|
| 1 | **First Principles Thinking** | Strip to fundamentals, rebuild from truth *(Aristotle; Musk)* |
| 2 | **Inversion** | Ask "How could I fail?" to find success *(Jacobi; Munger)* |
| 3 | **Second-Order Thinking** | Consequences of consequences *(Marks; Parrish)* |
| 4 | **Probabilistic Thinking** | Replace yes/no with probability estimates *(Bayes; Silver)* |
| 5 | **MECE + Issue Trees** | No overlaps, no gaps *(McKinsey)* |
| 6 | **Pareto Principle** | 80% of results from 20% of causes *(Pareto)* |
| 7 | **Cynefin Framework** | Match approach to domain complexity *(Snowden)* |
| 8 | **Feedback Loops** | Reinforcing and balancing dynamics *(Systems dynamics)* |
| 9 | **Bayesian Updating** | Update beliefs with evidence *(Bayes)* |
| 10 | **Pre-Mortem Analysis** | Imagine failure to prevent it *(Klein)* |

## Full Catalog — 180 Frameworks by Category

Detailed descriptions with origins and attributions are organized in `references/`:

| File | Categories | Count |
|------|-----------|-------|
| [general-thinking.md](references/general-thinking.md) | General Thinking Concepts | 12 |
| [decision-making.md](references/decision-making.md) | Decision-Making Frameworks | 16 |
| [problem-solving.md](references/problem-solving.md) | Problem-Solving & Root Cause | 12 |
| [strategy.md](references/strategy.md) | Strategic Thinking & Business | 20 |
| [systems-thinking.md](references/systems-thinking.md) | Systems Thinking | 11 |
| [creative-thinking.md](references/creative-thinking.md) | Creative & Lateral Thinking | 14 |
| [scientific-methods.md](references/scientific-methods.md) | Scientific & Research Methods | 11 |
| [communication.md](references/communication.md) | Communication & Argumentation | 8 |
| [cognitive-biases.md](references/cognitive-biases.md) | Cognitive Biases & Psychology | 14 |
| [learning.md](references/learning.md) | Learning & Knowledge | 11 |
| [design-innovation.md](references/design-innovation.md) | Design & Innovation | 12 |
| [economics.md](references/economics.md) | Economics & Markets | 13 |
| [leadership.md](references/leadership.md) | Leadership & Organization | 10 |
| [quantitative-models.md](references/quantitative-models.md) | Math & Engineering Models | 9 |
| [ethics.md](references/ethics.md) | Ethics & Philosophy | 7 |
| | **Total** | **180** |

> 📖 **Want to go deeper?** See [further-resources.md](references/further-resources.md) for per-framework books, articles, videos, courses, and curated meta-collections.

## Key Sources & Attribution

For **per-framework deep-dive resources** (books, articles, videos, courses), see [further-resources.md](references/further-resources.md).

This catalog synthesizes frameworks from these primary sources:

- **Charlie Munger** — Latticework of Mental Models, *Poor Charlie's Almanack*
- **Shane Parrish** — *The Great Mental Models* (Vols. 1-4), Farnam Street (fs.blog)
- **James Clear** — Mental models catalog (jamesclear.com)
- **Daniel Kahneman** — *Thinking, Fast and Slow*, Prospect Theory
- **Nassim Taleb** — *Antifragile*, Via Negativa, Black Swans
- **Edward de Bono** — Six Thinking Hats, Lateral Thinking
- **Peter Senge** — *The Fifth Discipline*, Systems Thinking
- **Michael Porter** — Five Forces, Value Chain Analysis
- **Dave Snowden** — Cynefin Framework
- **IDEO / Tim Brown** — Design Thinking
- **Eric Ries** — Lean Startup, MVP
- **McKinsey, BCG, Bain** — MECE, 7S, BCG Matrix, Pyramid Principle
- **ModelThinkers** (modelthinkers.com), **Ness Labs** (nesslabs.com), **The Decision Lab** (thedecisionlab.com)