Interoperable Services for Federations of Database System (2002)
Conference Proceeding
Roantree, M., Kennedy, J., & Barclay, P. J. (2002). Interoperable Services for Federations of Database System. In A. Caplinskas, & J. Eder (Eds.), Advances in Databases and Information Systems: Fifth East-European Conference ADBIS' 2001

The problems associated with defining interoperable protocols for heterogenous information systems has been the subject of researchers for many years. While numerous solutions have been offered, the problem remains unsolved, mainly due to the distinc... Read More about Interoperable Services for Federations of Database System.

A dual-level presentation model for developing user-interfaces. (2000)
Conference Proceeding
Barclay, P. J., & Kennedy, J. (2000). A dual-level presentation model for developing user-interfaces. In V. Gesu, S. Levialdi, & L. Tarantino (Eds.), Proceedings of the workshop on Advanced Visual Interfaces (151-154)

The visualisation of hierarchical information sets has been a staple of Information Visualisation since the field came into being in the early 1990’s. However, at present, support for visualising the correlations between multiple, overlapping sets of... Read More about A dual-level presentation model for developing user-interfaces..

Providing views and closure for the object data management group object model (1999)
Journal Article
Roantree, M., Kennedy, J., & Barclay, P. (1999). Providing views and closure for the object data management group object model. Information and Software Technology, 41(15), 1037-1044. https://doi.org/10.1016/s0950-5849%2899%2900042-7

The ODMG Object Model uses a standard for object-oriented database designers, while attempting to address some issues of interoperability. This research is focused on the viability of using the ODMG data model as a canonical data model in a multid... Read More about Providing views and closure for the object data management group object model.

Using a conceptual data language to describe a database and its interface (1995)
Conference Proceeding
Mitchell, K., Kennedy, J., & Barclay, P. J. (1995). Using a conceptual data language to describe a database and its interface. In C. Goble, & J. Keane (Eds.), Advances in Databases: Proceedings [of the] 13th British National Conference on Database - BNCOD13, 1995 (101-119). https://doi.org/10.1007/BFb0000543

We propose a conceptual approach to defining interfaces to databases which uses the features of a fully object oriented data language to specify interface objects combined with database objects. This achieves a uniform, natural way of describing data... Read More about Using a conceptual data language to describe a database and its interface.

A conceptual language for querying object oriented data (1994)
Conference Proceeding
Barclay, P. J., & Kennedy, J. (1994). A conceptual language for querying object oriented data. In D. S. Bowers (Ed.), Directions in Databases: Proceedings [of the] 12th British National Conference on Databases, BNCOD 12, Guildford, United Kingdom, July 6-8, 1994 (187-204). https://doi.org/10.1007/3-540-58235-5_43

A variety of languages have been proposed for object oriented database systems in order to provide facilities for ad hoc querying. However, in order to model at the conceptual level, an object oriented schema definition language must itself provide f... Read More about A conceptual language for querying object oriented data.

Viewing objects. (1993)
Conference Proceeding
Barclay, P. J., & Kennedy, J. (1993). Viewing objects. In M. Worboys, & A. F. Grundy (Eds.), Advances in databases: Proceedings of the 11th British National Conference on Database Systems (93-110). https://doi.org/10.1007/3-540-56921-9_6

This paper examines the incorporation of database views into an object oriented conceptual model. An approach is presented where views are themselves objects, instances of view classes. These view objects provide new ways of interacting with preexist... Read More about Viewing objects..