Roles of signals and boundaries
Theory and models: general principles
Agents and signal processing
Networks and flows
Adaptation
Recombination and reproduction
Urn models of boundaries
Boundary hierarchies
The evolution of niches, a first look
Language: grammars and niches
Grammars as finitely generated systems
An overarching signal/boundary framework
A dynamic generated system model of ontogeny
A complete dynamic generated system for signal/boundary studies
Mathematical models of generated structures
A short version of the whole.