%0 Journal Article
	%A Neerja Bhatnagar and  Benjoe A. Juliano and  Renee S. Renner
	%D 2007
	%J International Journal of Computer and Information Engineering
	%B World Academy of Science, Engineering and Technology
	%I Open Science Index 9, 2007
	%T Data Annotation Models and Annotation Query Language
	%U https://publications.waset.org/pdf/10821
	%V 9
	%X This paper presents data annotation models at
five levels of granularity (database, relation, column, tuple, and cell) of relational data to address the problem of unsuitability of most relational databases to express annotations. These models
do not require any structural and schematic changes to the
underlying database. These models are also flexible, extensible,
customizable, database-neutral, and platform-independent. This paper also presents an SQL-like query language, named Annotation Query Language (AnQL), to query annotation documents. AnQL is simple to understand and exploits the already-existent wide knowledge and skill set of SQL.
	%P 2922 - 2927