Subject matter expert
A subject matter expert is a person with specialized knowledge or experience in a particular subject area, problem domain, or professional field.
Collaborative Software Design: How to facilitate domain modeling decisions
A subject matter expert is a person with specialized knowledge in a particular field, here software design.
- How it is used
- Uses specialized knowledge to build shared domain understanding and inform collaborative software-design decisions.
- How deep it goes
- Defines expertise and role overlap, then gives a facilitation protocol for switching visibly between neutrality and expert advice.
- Examples
- Uses executives, product owners, UX designers, testers, developers, operations specialists, and a role-marking facilitation contract as examples.
- What you can do after
- Apply it by identifying expertise independently from system use and declaring when facilitation gives way to expert advice.
Building User-Friendly DSLs
A domain expert is a person with specialized knowledge of the business domain that a software system or language represents.
- How it is used
- Positions domain knowledge at the center of DSL-based software development and Runtime specification.
- How deep it goes
- Defines expertise, shared language, specification authoring, and change responsibilities but stops short of detailing expert selection or collaboration procedures.
- Examples
- Uses car-rental employees handling price quotes, business processes, and regulatory compliance as concrete experts.
- What you can do after
- Apply expertise through a Domain IDE to author, change, and test DSL specifications that generate parts of a Runtime.
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The Art of AI Product Development
A domain expert is a person with substantial knowledge of a particular problem area, industry, workflow, or user population.
- How it is used
- Guides AI opportunity discovery, feature definition, workflow fit, and output validation through real-world domain knowledge.
- How deep it goes
- Explains contributions, constraints, supporting roles, and collaboration remedies, but stops short of technical implementation.
- Examples
- Uses logistics specialists, active power users, chatbot experiments, and workflow-focused feedback as concrete collaboration examples.
- What you can do after
- Apply domain expertise to identify opportunities, shape features, validate outputs, and improve cross-functional decisions.
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Writing for Developers: Blogs that get read
Deep, specialized knowledge and skill in a particular subject or activity.
- How it is used
- Deploys specialized knowledge to shape technical opinions, fill knowledge gaps, and establish credibility.
- How deep it goes
- Defines expertise through experience and deep technical knowledge, then develops it through structured writing, review, and gap-finding.
- Examples
- Uses web developers, framework contributors, bloggers, podcast hosts, conference speakers, book projects, and reviewed technical drafts.
- What you can do after
- Evaluate and strengthen technical work by adding unique experience, context, examples, commentary, and sufficient technical detail.
Read how Writing for Developers: Blogs that get read explains subject matter expert →
Related concepts
- stakeholderkind of · A stakeholder is a person or group with an interest in, influence over, responsibility for, or potential impact from a system, project, decision, or outcome.
- validationused by · The process of checking data, behavior, systems, models, or results against defined criteria to assess their correctness, suitability, or acceptability.
- evaluation datasetused by · An evaluation dataset is a collection of examples or test cases, often with expected or judged outcomes, designated to assess a model or system against defined criteria.
- knowledge graphuses · A knowledge graph is a graph-structured representation of entities and their semantically meaningful relationships, often including associated attributes or facts.
- ai projectused by · An AI project is a planned effort to develop, apply, deploy, or evaluate a system or capability that incorporates artificial intelligence.
- contractconfigures · An API contract is a specification of the operations, data, and behavioral expectations that govern interactions between software components.
These guides are generated from the text of Manning books by Manning's knowledge graph and link to the sections they draw on. The full books are available on liveBook and at manning.com.