Is there a difference between TDD and Test First Development (or Test First Programming)?

Question

Both ideas sound very similar to me, but there might be subtle differences or the exact same thing, explained in different ways. What is the relationship between TDD and Test Fi

Answer 1

In Test Driven Development: By Example, the author, Kent Beck, clearly states that "test first" (TF) is the rule. So TF is the principle that rules TDD. The later one is the process.