Test-driven development (TDD) is a software development process that relies on the repetition of a very short development cycle: first the developer writes an (initially failing) automated test case that defines a desired improvement or new function, then produces the minimum amount of code to pass that test, and ...

How do TDD lines work?

Technology lets people with hearing problems make phone calls over their computer like in this early IBM version. The user types his message, and the letters are converted into electrical signals that travel over the phone line. ...

What is the difference between TDD and TTY?

A TTY is a device like a typewriter that has a small readout. It is also called a Telecommunication Device for the Deaf (TDD) but that name has been devised by the hearing community and is not accepted by Deaf people, the actual users of TTY technology. They still prefer the term, TTY.