Data management systems are central to many applications across multiple domains, and play a significant role in many 
others. Web services provide implementation neutral facilities for describing, invoking and orchestrating collections of
 networked resources. The Open Grid Services Architecture (OGSA) extends Web Services with consistent interfaces for 
creating, managing and exchanging information among Grid Services, which are dynamic computational artifacts cast as Web
 Services. Both Web and Grid service communities stand to benefit from the provision of consistent, agreed service 
interfaces to database management systems. Such interfaces must support the description and use of database systems 
using Web Service standards, taking account of the design conventions and mandatory features of Grid Services. This 
document presents a specification for a collection of grid data access services. The proposal is presented for 
discussion within the Global Grid Forum (GGF) Database Access and Integration Services (DAIS) Working Group, with a view
 to the document evolving to become a proposed recommendation. There are several respects in which the current proposal 
is incomplete, but it is hoped that the material included is sufficient to allow an informed discussion to take place 
concerning both its form and substance. .