No, I’m not talking about a beach or swimming pool (although this would have been quite appropriate for summer), but about LIDO as in “Lightweight Information Describing Objects”, a newly developed XML metadata harvesting schema for cultural objects now in version 1.0. It is based on and was influenced by existing schemas such as CDWA Lite and aims to bridge the silos of different formats for easier metadata integration into portals or other web applications.
A LIDO record consists of 7 areas: 4 for descriptive information (classification, identification, event, relation), and 3 for administrative information (rights, record and resource). The CIDOC Conceptual Reference Model includes the concept of events, which plays an important role in the description of cultural objects (also of books, by the way), and the event aspect is part of LIDO, too. The most significant events associated with an object are Acquisition, Creation, Collection, Modification and Use, with related entities such as date, place or actor.
Additionally, as e.g. in VRA 4.0, institutions that expose their metadata can provide indexing (search and retrieval) and display (presentation) information right in the schema.