High Quality Content by WIKIPEDIA articles! Robert Bruce Findler, colloquially known as "Robby", is a computer scientist, currently teaching at the Northwestern University. He is also a member of PLT and, as such, responsible for the creation and maintenance of DrScheme. In addition to DrScheme, Findler has contributed numerous components to PLT Scheme and supervises its Web-based software library, called PLaneT. Findler is also a leading team member of the TeachScheme! project. Findler received his PhD at Rice University under the direction of Matthias Felleisen. His dissertation is on the linguistics of software contracts, popularly known as design by contract. His main contribution to software contracts is a more careful accounting of blame, thereby helping quickly programmers home in on the faulty part of a software system. In addition to DrScheme and software contracts, Findler focuses on the design and implementation of a workbench for semantics engineers. This workbench, currently dubbed REDEX, is a tool for specifying and executing the reduction semantics of a programming language.