-Type Driven Development is a programming paradigm where the rich expressiveness of a language's [Type System](/wiki/type_system) actively guides the software creation process. By modeling domain concepts precisely with [Data Types](/wiki/data_types), developers craft programs that are inherently more correct, robust, and easier to reason about, often catching errors at compile time rather than runtime. This approach treats the type system not just as a validator, but as a design tool, allowing developers to encode invariants and business rules directly into the structure of their types. For instance, using [Algebraic Data Types](/wiki/algebraic_data_types) can ensure that invalid states are unrepresentable, making it impossible to compile code that violates these rules. This proactive error detection significantly reduces the need for extensive runtime checks and improves the safety and predictability of [Refactoring](/wiki/refactoring) operations.
+Type Driven Development is a programming paradigm where the rich expressiveness of a language's [Type System](/wiki/type_system) actively guides the software creation process. By modeling domain concepts precisely with [Data Types](/wiki/data_types), developers craft programs that are inherently more correct, robust, and easier to reason about. This approach prioritizes catching errors at [Compile Time](/wiki/compile_time) rather than [Run Time](/wiki/run_time), effectively shifting error detection left in the development lifecycle.
+The core idea is to treat the type system not just as a validator, but as a powerful design tool. Developers use types to encode invariants, business rules, and legal states directly into the structure of their programs. These types effectively become executable specifications, providing a continuous feedback loop from the compiler. For instance, leveraging features like [Algebraic Data Types](/wiki/algebraic_data_types) and [Smart Constructors](/wiki/smart_constructors) can ensure that invalid states are unrepresentable, making it impossible to compile code that violates these rules.
+This proactive error detection significantly reduces the need for extensive runtime checks, improves the safety and predictability of [Refactoring](/wiki/refactoring) operations, and enhances [Program Correctness](/wiki/program_correctness). Languages like [Haskell](/wiki/haskell), [Idris](/wiki/idris), and [F#](/wiki/f_sharp) are often associated with Type Driven Development due to their advanced type systems, which can even incorporate [Dependent Types](/wiki/dependent_types) to express complex properties about values and data.