This paper examines Internal Vowel Alternation (IVA) in Noun Plurals (e.g. 'tooth/teeth') and Past Tense formation (e.g. 'sing/sang') according to the signoriented theory of the Columbia School (CS) in general and the theory of Phonology as Human Behavior (PHB) in particular. Today, these IVA forms are considered to be "irregular", and are vestiges of former prevalent and productive processes i...

This paper presents how the function–behavior–structure (FBS) ontology can be used to represent processes despite its original focus on representing objects. The FBS ontology provides a uniform framework for classifying processes, and includes higher level semantics in their representation. We show that this ontology supports a situated view of processes based on a model of three interacting wo...