The eobjects.org MetaModel is a project created for maximum reuse of a domain model of the database domain. The MetaModel is a model that contains classes that represent the structure of a database (schemas, tables, column, relationships) and interaction with the database (queries) using SQL/LINQ-style expressions. In short a model for modelling (hence the word "metamodel") data in databases and other datastores like CSV-files, MS Access files and Excel spreadsheets.