  Defining privacy and related notions such as Personal Identifiable
Information (PII) is a central notion in computer science and other fields. The
theoretical, technological, and application aspects of PII require a framework
that provides an overview and systematic structure for the discipline's topics.
This paper develops a foundation for representing information privacy. It
introduces a coherent conceptualization of the privacy senses built upon
diagrammatic representation. A new framework is presented based on a flow-based
model that includes generic operations performed on PII.
