James Grenning's trains, coaches and consults worldwide. James' mission is to bring modern technical and management practices to to product development teams, especially embeddedÂ systems development. He is the author of Test-Driven Development for Embedded C (https://wingman-sw.com/tddec). He is a co-author of CppUTest, a popular unit test harness for embedded C and C++ (http://cpputest.org). He invented Planning Poker, an estimating technique used around the world, and participated in the creation of the Manifesto for Agile Software Development (https://agilemanifesto.org/). His website is https://wingman-sw.com.