A community of practice is a group of people who share a concern or passion for something they do and, through regular interaction, learn together how to do it better. The term was coined in the early 1990s by cognitive anthropologists Jean Lave and Etienne Wenger, originally to describe how apprentices learn trades not through formal instruction but by gradually participating in the real work of a skilled group. Since then, the idea has spread far beyond apprenticeship into healthcare, education, software development, corporate knowledge management, and dozens of other fields. What makes the concept powerful is also what makes it easy to misunderstand: a community of practice is not a team, not a department, and not a social network, though it can overlap with all three.
The Three Elements That Define a Community of Practice
A community of practice rests on three interrelated elements: a domain, a community, and a practice. The domain is the shared area of interest or expertise that gives the group its identity and focus. The community is the social fabric, the relationships and trust that develop among members who engage with each other around that domain. And the practice is the shared repertoire of resources, experiences, tools, and ways of addressing recurring problems that the group develops over time.1ResearchGate. Developing theory and practice: Creation of a Community of Practice through Action Research produced excellence in stroke care All three elements have to be present. A group of people who share an interest but never interact has a domain but no community. A tight-knit social group that does not develop shared ways of working has community but no practice. A team following a standard operating procedure without genuine mutual engagement has a practice of sorts but lacks the organic learning that defines a real community of practice.
This three-part structure helps distinguish communities of practice from other organizational forms. A project team disbands when the project ends. A department is defined by an org chart. A professional association holds annual conferences but may not generate the kind of ongoing, collaborative sense-making that characterizes a community of practice. The distinction matters because organizations that try to build communities of practice often mistake one of these other structures for the real thing, then wonder why the knowledge-sharing benefits never materialize.
How Knowledge Actually Moves Inside a Community of Practice
The most valuable thing a community of practice does is help its members share knowledge that is hard to write down. Formal training and documentation handle explicit knowledge well enough: procedures, checklists, and factual information that can be captured in text. But a huge amount of professional expertise is tacit. It lives in judgment calls, intuitions, workarounds, and the kind of know-how that experienced practitioners struggle to articulate even when asked directly. Communities of practice transfer this tacit knowledge through a process researchers have described as “thinking together,” where members mutually guide each other through their understandings of common problems and, in doing so, indirectly share the tacit knowledge embedded in their reasoning.2PubMed Central. Thinking together: What makes Communities of Practice work?
This is less abstract than it sounds. Picture a group of nurses who meet informally to discuss difficult patient cases. Nobody is giving a lecture. Instead, one nurse describes a situation, others ask questions, offer their own experiences with similar cases, and collectively the group works through the problem. In that process, the experienced nurses reveal how they think, not just what they know. The less experienced nurses absorb patterns of reasoning, not just answers. That transfer of professional thinking is what makes communities of practice fundamentally different from reading a textbook or attending a workshop.
From the Periphery to the Core
One of the most influential ideas to come out of community-of-practice theory is legitimate peripheral participation, which describes how newcomers gradually become full participants. Newcomers do not start by doing the most important work. They start at the edges: observing, doing simpler tasks, asking questions, and slowly taking on more responsibility as they build competence and trust. Over time, some move toward the core of the community, where they shape the group’s practice and mentor the next wave of newcomers. Wenger’s later work placed increasing emphasis on this trajectory, focusing on personal growth and the movement of individuals from peripheral to core participation within a group.3PubMed Central. Evolution of Wenger’s concept of community of practice
This trajectory has been studied closely in medical education. Medical students working alongside general practitioners in weekly clinical placements, for example, have described feeling legitimately peripherally part of a wider medical community of practice. The regular contact with practicing physicians gave them not just clinical skills but a developing sense of professional identity, the feeling that they were becoming doctors rather than simply studying to become doctors.4PubMed Central. It’s how we practice that matters: professional identity formation and legitimate peripheral participation in medical students: a qualitative study Public health residents have similarly emphasized the importance of welcoming communities of practice that give them real professional responsibilities aligned with their specialty, rather than just observational roles.5PubMed Central. Professional identity formation in public health residents: participation in the vast landscape of practice
The process is not limited to medical fields. Nursing academics transitioning from clinical roles to university teaching have used international online communities of practice to navigate that shift, with novice and expert academics collaborating to discuss the complex identity change from clinician to academic.6PubMed. Developing professional identity in nursing academics: the role of communities of practice In each case, the community of practice serves as the social environment in which a professional identity is not just learned but actively constructed through participation.
When Communities of Practice Go Online
Virtual communities of practice have become increasingly common, accelerated by remote work and especially by the disruptions of the Covid-19 pandemic. The appeal is obvious: members can participate across geographic boundaries and time zones, and the barrier to joining is lower than for in-person groups. Teachers during the pandemic, for instance, viewed virtual communities of practice as effective tools for professional development both during the crisis and in general, valuing the peer support and knowledge exchange they provided when in-person collaboration was impossible.7PubMed Central. Teachers’ virtual communities of practice: A strong response in times of crisis or just another Fad?
Virtual communities can deliver genuine collaborative value. Participants in one studied virtual community of practice described the online discussions as especially effective for peer support, reflection, and practical problem-solving. One participant noted that the virtual format provided something structured courses could not: an open space to say, “I’m trying to do this, it’s not working, have you tried this before?” Another highlighted the value of having vetted resources and practical examples shared directly by trusted peers.8International Journal of Technology and Human Interaction. The Virtual Community of Practice Facilitation Model
But virtual communities of practice also face a persistent problem: most members read and never post. An evaluation of public health virtual communities found that while the platforms attracted a reasonable number of unique visitors per month, virtually no users were actively posting messages or resources. The reading activity was there, but the contribution was not. A small group of “super-users” accounted for most of the posting, while the majority remained silent consumers.9PubMed Central. Virtual communities of practice: can they support the prevention agenda in public health? This lurker-dominated pattern is one of the central challenges in making online communities of practice genuinely function as communities rather than as passive content repositories.
Researchers have identified several factors that shape whether a virtual community of practice thrives or fizzles. The motivators include utilitarian considerations (members get concrete professional benefits), a sense of belonging, and alignment with personal values. The barriers include interpersonal friction, technological awkwardness, and cultural norms that discourage open sharing. Enablers that help overcome those barriers include a supportive organizational culture, the presence of trust between members, and tools that are easy to use.10Advances in Developing Human Resources. Learning and Knowledge Sharing in Virtual Communities of Practice: Motivators, Barriers, and Enablers The trust piece is worth emphasizing: people will not share their uncertainties and half-formed ideas with strangers they do not trust, and trust builds much more slowly online than in person.
Communities of Practice in Healthcare
Healthcare has become one of the most active settings for communities of practice, in part because the field combines rapidly evolving knowledge with high stakes for getting things wrong. A systematic review of communities of practice in healthcare found that the most common aim was to directly improve a clinical outcome. Of the studies with appropriate statistical methods, the majority that showed significant effects demonstrated improvements in hospital-based services such as discharge planning and rehabilitation, in primary care management of conditions like hepatitis C, and in direct clinical outcomes such as reductions in central line infections.11PubMed Central. The aims and effectiveness of communities of practice in healthcare: A systematic review
Beyond direct clinical improvements, communities of practice can serve as infrastructure for learning health systems, which are organizations that systematically use data and evidence to improve care over time. In this role, communities of practice help identify learning priorities, generate and share knowledge, and support the implementation and evaluation of changes across the system.12PubMed Central. How to use communities of practice to support change in learning health systems: A landscape of roles and guidance for management The appeal here is that a community of practice can span the gaps between formal departments and hierarchies, connecting frontline clinicians with quality improvement staff, researchers, and administrators in ways that formal committee structures often fail to do.
The evidence is promising but worth keeping in perspective. That same systematic review noted that qualitative outcomes were the most common measure used across the studies, and only a fraction had the statistical rigor to report significant effects.13PubMed Central. The aims and effectiveness of communities of practice in healthcare: A systematic review Communities of practice in healthcare tend to generate a lot of enthusiasm from participants but are harder to evaluate using the randomized controlled trial methods that the field prizes. The benefits are real, but quantifying them precisely remains a challenge.
Why Communities of Practice Fail
Not every group that calls itself a community of practice actually becomes one, and even genuine communities of practice can stagnate or collapse. A scoping review of barriers and facilitators in medical education identified several recurring problems: insufficient structural and resource support, difficulty attracting and engaging the right members, poor alignment between the community’s activities and members’ actual needs, and a lack of reflection or evaluation of how the community was functioning.14PubMed. Barriers and facilitators to the cultivation of communities of practice for faculty development in medical education: A scoping review
One of the subtler failure modes involves power dynamics and gatekeeping. The theory of legitimate peripheral participation implies that newcomers can freely move from the edges toward the core of a community. In reality, access is not always open. Critics have argued that gaining legitimate peripheral participation is often a matter of sanction from within the community’s hierarchy, not simply a newcomer’s desire to participate. Individuals do not have open access to communities based solely on their wish to be part of them. While practices may define the community, the community determines who has access to that practice.15Journal of Sociolinguistics. Communities of practice: Legitimacy not choice In other words, communities of practice can reproduce exclusion and hierarchy just as easily as they can foster learning, especially when the community’s insiders are not conscious of the gatekeeping they perform.
Power dynamics more broadly can undermine the collaborative ethos that communities of practice depend on. When some members hold significantly more institutional authority than others, the open exchange of ideas that makes a community of practice valuable can be suppressed. Junior members may defer to senior members rather than challenge them, and senior members may consciously or unconsciously steer the community’s direction in ways that serve their interests rather than the group’s learning.16PubMed Central. Addressing power dynamics in community-engaged research partnerships Organizations that mandate participation in a community of practice from above can be especially prone to this problem: the voluntariness that typically characterizes authentic communities of practice is replaced by obligation, and members engage performatively rather than genuinely.
The Life Cycle Problem
Communities of practice are not static. They go through stages, from initial formation through periods of high activity and growth, and eventually to decline or transformation. Recognizing this life cycle matters because the support a community needs changes at each stage. An early-stage community needs help finding its identity and building relationships among members. A mature community needs fresh challenges and new members to avoid stagnation. A community in decline may need to be either reinvigorated with a new focus or allowed to wind down gracefully rather than propped up artificially.17IGI Global Scientific Publishing. The Life Cycles of Communities of Practice
Many organizational attempts to create communities of practice fail because they treat the community as a permanent structure rather than a living entity with natural phases. A community of practice that forms organically around an urgent shared problem may thrive for a few years and then naturally dissolve as the problem is solved or members move on. That dissolution is not a failure. It is the normal end of a productive life cycle. The failure is when organizations try to keep a community alive past its natural expiration by adding formal structure, mandatory meetings, and reporting requirements, turning a once-vibrant community into a bureaucratic shell.
Measuring Whether a Community of Practice Is Working
One of the persistent frustrations for organizations that invest in communities of practice is figuring out whether they are actually producing value. Traditional metrics like attendance, number of posts, or member satisfaction surveys capture surface-level activity but miss the deeper question of whether the community is changing how people think and work. Researchers have proposed more nuanced evaluation frameworks that trace value creation through stages: immediate value (did members find the interaction useful in the moment), potential value (did they gain new knowledge or ideas they could apply), applied value (did they actually change their practice), realized value (did those changes produce measurable improvements), and reframing value (did participation shift how members understand their work at a fundamental level).18PubMed Central. Exploring value creation in a virtual community of practice: a framework analysis for knowledge and skills development among primary care professionals
The later stages are the hardest to measure and the most meaningful. A community of practice can generate lively discussion and high member satisfaction without actually changing anything about how people work. Conversely, a quieter community where a handful of members regularly adapt ideas from each other and apply them to real problems may be producing far more value than its modest engagement metrics suggest. Evaluation tools specifically designed for virtual communities of practice, such as the Value Creation Framework, have shown promise in capturing this added value beyond simple activity counts.19BMJ. Measuring the added value of virtual communities of practice for developing the educator role of critical care professionals But the honest reality is that most organizations still rely on the easier, shallower metrics, which means that many effective communities of practice look unimpressive on paper while some flashy but shallow ones get held up as success stories.
Communities of Practice and Sustainability Across Organizations
One area where communities of practice have found a distinctive role is in cross-organizational knowledge sharing around complex problems like sustainability. Within a single organization, knowledge about sustainable practices often sits in silos: the facilities team knows about energy efficiency, the procurement team knows about supply chain ethics, the product design team knows about materials. A community of practice that spans those boundaries can serve as a knowledge pipeline, using shared frameworks and discussion to help knowledge flow across disciplinary lines that would otherwise block it. Research on sustainability-focused communities of practice has found that specific knowledge-sharing tools, when used as shared reference points (sometimes called boundary objects), can promote the kind of cross-boundary learning that organizations need to embed sustainability into their operations.20Organization Studies. Organizational Learning and the Sustainability Community of Practice
This boundary-spanning function hints at something broader about what communities of practice do well: they connect people who would not otherwise talk to each other but who are working on related problems. Formal organizational structures tend to create vertical channels of communication, linking people up and down a hierarchy. Communities of practice create horizontal channels, linking people across teams, departments, and even organizations. When that horizontal connection works, it can surface solutions that no single team or department would have found on its own. When it does not, it is usually because the structural, cultural, or trust conditions described earlier are missing, not because the concept itself is flawed.