Abstract: Methods, system, and media are described herein for receiving design requirements associated with a building project from remote devices over the Internet and storing design requirements and changes to design requirements, including user-defined categories, and user information and comments regarding design requirements, in an extensible data structure, which automatically extends itself without a need for user-provided programmatic code. The design requirements are gathered and stored in such a way that a building program (also known as an “architectural program”) can be automatically generated on demand.