SECI Model
Nonaka and Takeuchi's framework describing four modes of knowledge conversion: Socialization, Externalization, Combination, and Internalization.
Also known as: Knowledge Spiral, Nonaka-Takeuchi Model, Knowledge Conversion Model
Category: Frameworks
Tags: knowledge-management, frameworks, organizations, learning
Explanation
## What Is the SECI Model?
The SECI model, developed by Ikujiro Nonaka and Hirotaka Takeuchi in 1995, is a foundational framework in knowledge management that describes how knowledge is created and transformed within organizations. The model identifies four modes of knowledge conversion that form a continuous spiral of organizational learning.
## The Four Modes
### Socialization (Tacit → Tacit)
Knowledge transfers between individuals through shared experience, observation, and practice. Examples include apprenticeships, pair programming, shadowing, and informal conversations. The knowledge remains tacit -- it is absorbed through participation rather than documentation.
### Externalization (Tacit → Explicit)
Tacit knowledge is articulated into explicit concepts through metaphors, analogies, models, and documentation. This is often the most challenging and valuable conversion. Examples include writing down a process you perform intuitively, creating architecture decision records, or explaining your decision-making rationale.
### Combination (Explicit → Explicit)
Explicit knowledge is combined, reorganized, and synthesized to create new explicit knowledge. Examples include compiling a knowledge base from multiple documents, creating summaries and reports, integrating information from different sources, and building taxonomies.
### Internalization (Explicit → Tacit)
Explicit knowledge becomes tacit through practice and application. Reading documentation and then applying it until it becomes intuitive. This is "learning by doing" -- manuals become skills, procedures become habits.
## The Knowledge Spiral
The four modes form a continuous spiral: knowledge created through socialization is externalized, combined with other knowledge, internalized through practice, and then shared again through socialization -- each cycle expanding the organization's knowledge base.
## Application to PKM
The SECI model applies directly to personal knowledge management:
- **Socialization**: learning from conversations, communities of practice
- **Externalization**: writing notes, creating concept maps, journaling
- **Combination**: linking notes, building maps of content, synthesizing ideas
- **Internalization**: applying knowledge until it becomes intuition
Effective PKM systems support all four modes of conversion.
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