The framework for the Object-oriented Process, Environment and Notation, (OPEN), process consists of interconnecting activities, which are represented as objects whose methods are the tasks needing to be accomplished.
Donald Firesmith is a multi-award-winning author of speculative fiction including science fiction (alien invasion), fantasy (magical wands), modern urban paranormal novels, and horror short stories and poetry.
Before retiring in 2020 to devote himself full-time to his novels, Donald Firesmith earned an international reputation as a distinguished engineer, authoring seven system/software engineering books based on his 40+ years spent developing large, complex software-intensive systems.
He lives in Pittsburgh, Pennsylvania with his wife Becky, his daughter Sera, and varying numbers of dogs and cats.