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Test driven development (TDD) is increasing in information technology applications and product development; however, it has not been widely applied in embedded software development. Embedded developers face many challenges. TDD can help overcome some of these challenges, but TDD has to be adapted for embedded systems development. TDD is an important software development practice that can help embedded developers deliver higher quality products. The embedded TDD cycle can help take hardware availability off the software critical path, enabling steady progress with or without hardware. TDD can be used for embedded development in C and C++. Java may also be an option for some embedded systems, and Java is better suited for TDD, as the tools for Java support are much more advanced.