Rule Learners vs. Case Learners: How Developers Build Transferable Knowledge

The article distinguishes two primary learning styles: rule learners and case learners.

Rule learners seek rules and structures, then deduce and derive solutions based on those principles. They excel at abstracting universal rules, principles, or formulas from concrete examples and applying them to new problems. For instance, when learning mathematics, a rule learner might derive the quadratic formula from a few worked examples and then use that formula to solve any similar equation.

Case learners prefer to learn through specific examples, experiences, stories, and simulations. They rely on existing cases, comparing new problems to past similar situations and solving them by analogy. They are strong at remembering concrete details and tend to ask, "Have I done something like this before?" before adapting a previous solution.

The author cites the concept of advanced structure builders, noting that both advanced structure builders and rule learners can better apply what they learn in unfamiliar environments. Unless one understands the underlying principles in their work and can assemble those principles into a larger structure — rather than merely accumulating isolated facts — knowledge never becomes a true knack. A knack is defined as something you can personally put into practice once learned.

Finally, the author reflects on their own experience in software development, identifying as a case learner who needs to enhance rule-learning ability. The goal is to extract common patterns and knowledge so they can be expanded and applied flexibly in specific scenarios.