Spatial Representations and Spatial Data Infrastructures

A centralized service with a user interface that allows a user to query distributed catalogue services through their metadata descriptions.

A system that defines the coordinate space such that the coordinate values are unambiguous.

A temporary monopoly granted over a work. Copyright protects a number of different rights over a work, chief of which is the right to create copies. The creator (or "author") of a work retains rights to that work but can transfer some or all of the rights to others. Re-creating a significant portion of a copyrighted work without permission is illegal.