A metadata architecture for digital libraries
R. Daniel, Carl Lagoze, Sandy Payette · 2002
From an architectural perspective, there is no essential distinction between data and metadata. Both can be represented in distributed active relationships (DARs), which are an extension of the Warwick framework (C. Lagoze et al., 1996). The DAR model is a powerful way to express relationships between networked resources and to allow such relationships to be dynamically downloadable and executable.