- 1. Time Division Duplex.
Time Division Duplex (TDD) is a means to allow communications in both directions on the same radio frequency. It works by allocating different time slots to the uplink and downlink transmissions.
- 2. Test Driven Development.
Test Driven Development (TDD) is also known as Test First Development or Test First Programming.
The development concept behind TDD is to first develop a test harnesses (or unit tests) for what is required and only then to develop the software which in turn must pass those tests. TDD requires the tests to be written before the corresponding software.
For more information see:
- http://iit-iti.nrc-cnrc.gc.ca/iit-publications-iti/docs/NRC-47445.pdf - Study on the effectiveness of Test-First Approach to Programming.