Yes, a glossary of OpenTEAM terms and definitions can be found here.
Open source is a publicly accessible software design that can be modified and shared by multiple users. This allows the source code to be inspected and enhanced by anyone. Because open source utilizes multiple collaborators, it allows for more control, increased security and stability, additional training opportunities, and the foundation of communities centered around software design. The open source approach encompasses a more broad set of values and principles derived from open source software development. Open source is centered around transparency, collaboration, inclusivity, and community. By including open access, collaboration among diverse perspectives, and rapid prototyping, the very iterative open source approach produces an optimized product generated by communities.