Koodikohtia

Koodikohtia is a concept in programming education and software testing referring to small, self-contained units of code that can be executed and evaluated independently. The term is Finnish and combines koodi (code) with kohta (point, location), roughly translating to "code spots" or "code locations." These units are designed to be isolated to ensure deterministic behavior and easy assessment.

Each koodikohta typically includes a minimal code skeleton, a short problem description, input and output specifications, and a set of automated tests. In learning platforms, koodikohtia are used as micro-problems or exercises that learners complete to practice a single concept or technique. They support incremental learning, allow instant feedback, and facilitate automated grading.

Koodikohtia differ from larger programming projects by focusing on a single concept and a minimal runtime environment. They are often language-specific, though the concept can be applied across languages. They can be assembled into larger curricula or used as building blocks within a broader exercise system.

The concept has been part of Finnish programming education since the 2010s and has influenced how online judges and educational platforms structure tasks. Some platforms explicitly label tasks as koodikohtia to emphasize atomicity and testability.

Koodikohtia are an example of how education and software testing mingle in modern programming practice.