Embodiments of the invention encompass a system for simplified implementation of adaptable/flexible user interfaces. The system may include: one or more frameworks; zero or more navigation modules; zero or more content modules; and a set of standardized flexible formatting specifications. The framework may include containers that zero or more navigation modules and/or content modules may be inserted into. The standardized formatting specifications may be used to specify how framework containers, and components inserted into containers, are to appear. The visual characteristics of the user interface may be changed by setting different attributes of the formatting specifications and/or inserting content and/or navigation modules into different framework containers.