What are the different types of purchasing models?

Purchasing models handbook - 40 types. Book available from CIPS

Section 1: Management Leadership

Tannenbaum and Schmidt

Situational Leadership Model

Action Centred Leadership

Tuckman Model

Balanced Scorecard

Iron Triangle

Managerial Grid

Section 2: Strategic Analysis

Porters's generic strategies

Ansoff Matrix

Porters Five Forces

Boston Box

Innovation Diffusion

Strategy Development PCA

PESTLE

Section 3: Key Processes

Communication Processes

Product Life Cycle

Purchasing Life Cycle

Network Analysis

Ishikawa

Demings PDCA Model

Risk Impact Grid

Section 4: Negotiation

Persuasion Tools Matrix

ZOPA Model

Phases of Negotiation

Thomas Kilman Conflict Model

SPIN Model

Rapport Matrix

Section 5: Relationships

Relationship Continuum

Kraljic Model

Supplier Preferencing Model

Power Dominance

Outsourcing Decision Matrix

ESI

Stakeholder Analysis

Section 6: Organisations

SWOT

McKinsey 75

Cultural Web Model

Porters Value Train

Lewin's ForceField Analysis Model

Lean vs Agil