Eye of HorusHeader

Clarity Programming



In the early 1980's the concept of a functional database language (FDL) was developed by Alexandra Poulovassilis at Birkbeck College, UCL. Carol Small implemented the first version of Faith during the CARDS project (see below). Since then Clarity has been developed by the authors through the support of the following projects:

1986 to 1990:

"CARDS A Conceptual and Relational Database Server", SERC (Grant No. GR/D/7306.5-IKBS-140). Investigators: Arthur Foster (General Electric Company), Tom Addis (University of Reading) and Chris Rawlings (Imperial Cancer Research Fund). The concept of Clarity evolved in response to the difficulties in creating complete conceptual models in terms of a conceptual language. Most of the modeling by ICRF had been done in Prolog which had some fundamental limitations for complex modeling. The work was done on a Sun work station using UNIX. In 1989 at Reading University the Clarity environment was tested on first year students using a double blind four phase test. It was clear from the results that the visual programming could halve the time in model creation and reduce the error rate by a significant factor (approximate one quarter).

1990 to 1991:

Clarity continued its development as a private enterprise by the authors.

1991 to 1993:

"Knowledge Design from Natural Science Experiments" MRC (No 85147)special project grant, 9107137 from the SERC/ESRC/MRC Joint Initiative on Cognitive Science and Human Computer Interaction,. Investigators: David Gooding (University of Bath) and Tom Addis (University of Reading). This project was a result of discussions between the investigators during a conference at Dubrovnik in 1989. It provided a major stimulus in the formation of Clarity.

1991 to 1996:

At Bath University CLARITY was considerably extended and developed on a Macintosh IIci under System 7, using MPW.

1994 to 1996:

"Graphic Programming Methods for modeling Cognitive & Social Process of Science", ESRC (No R000235286). Investigators: David Gooding (University of Bath) and Tom Addis (University of Portsmouth). This project continued the evolution of Clarity under the testing conditions of modeling the discovery process.

1994 to 1995:

"Renegade: Research Network on Genetic Algorithms Development" Human Capital and Mobility (1992-1994) (No ERBCHRXCT930419). Investigators: Brainware (Berlin), University College London, University of Portsmouth, Polytechnic di Milano, Katholieke Universiteit Nijmegen. The project was proposed to provide a good interface to a genetic algorithm library. The problem was to transfer Clarity to work on a PC. This was only partially successful due to limited time available and the restrictions imposed by Windows 3.1.

1996 to 1997:

Clarity continued its development as a private enterprise by the authors and work was started to convert Clarity to the PC environment under Windows 95.

1998 to 2000

Funding provided by Warsash Maritime Centre and Portech Ltd to further develop the environment as a tool for creating intelligent control systems.

2001 to date

Funding provided by MPRI to further develop the environment as a tool for creating training and assessment systems for mariners (The WISE system).


Copyright 2000-2009© Tom Addis and Jan Addis
The site originally was designed by Bart-Floris Visscher and the current site has been modified by Tom Addis