The Linked Resource Model (LRM) aims at describing digital resources for preservation purposes. It focuses on describing the dependencies between such objects, in order to help managing the evolution of the preservation ecosystem, possibly detecting inconsistency and/or weaknesses from the dependency graph or advising the curator on preventive or corrective actions. Dependencies can be very abstracts, or very concrete, like in software management systems, and their semantics is captured through domain specific ontologies derived from the root LRM ontology presented here.
an LRM Resource can be decorated with time oriented metadata (time coordinates, duration, co-occurence with other temporal entities). Our time model is designed to smoothly handle uncertainty and variable precision, while maintaining the possibility of modeling synchronous phenomenons without precision loss (e.g. events occuring at uncertain time coordinate and/or of uncertain time duration, but still known to be exactly synchronized with other events)