A pre-relational databases datamodel. "Preceeded" by the relational model since the flexibility of this makes it hard to work with. Now re-invented in RDF :)
A. Gabrielli, A. Baldassarri, and B. Sapoval. Physical Review E (Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics), 62 (3):
3103-3115(2000)
Y. Laurillau, and L. Nigay. CSCW '02: Proceedings of the 2002 ACM conference on Computer supported cooperative work, page 236-245. New York, NY, USA, ACM Press, (2002)
S. Greenspan, J. Mylopoulos, and A. Borgida. International conference on Software engineering, page 225--234. Tokyo, IEEE Computer Society Press, (1982)
S. Greenspan, J. Mylopoulos, and A. Borgida. International conference on Software engineering, page 135--147. Los Alamitos, CA, USA, IEEE Computer Society Press, (1994)
J. Filipe, M. Felici, and S. Anderson. International Conference on Human Aspects of Advanced Manufacturing:
Agility & Hybrid Automation, page 321--328. (May 2003)
S. Anderson, and M. Felici. International Conference on Product Focused Software Profess Improvement, page 27--41. Kaiserslautern, Germany, Springer, (September 2001)
S. Anderson, and M. Felici. International Conference on Dependable Systems and Networks, Workshop
on Interdisciplinary approaches to achieving and analysing system
dependability, page 210--215. Florence, Italy, (June 2004)
K. Ehrig, C. Ermel, S. Hansgen, and G. Taentzer. International Conference on Automated Software Engineering, page 134--143. Long Beach, CA, ACM Press, (November 2005)
W. Aiello, F. Chung, and L. Lu. STOC '00: Proceedings of the thirty-second annual ACM symposium on Theory of computing, page 171--180. New York, NY, USA, ACM Press, (2000)
B. Bollob&\#225;s, C. Borgs, J. Chayes, and O. Riordan. SODA '03: Proceedings of the fourteenth annual ACM-SIAM symposium on Discrete algorithms, page 132--139. Philadelphia, PA, USA, Society for Industrial and Applied Mathematics, (2003)
O. Paulzen, and P. Perc. Enabling Organisations and Society through Information Systems, Proceedings of the 13th Australasian Conference on Information Systems (ACIS 2002), page 243-253. Melbourne, (2002)
S. Staab, M. Erdmann, A. Maedche, and S. Decker. Proc. of First Workshop on the Semantic Web at the Fourth European Conference International Workshop on Research and Advanced Technology for Digital Libraries, Lisbon, Portugal 18-20 September 2000, (September 2000)
R. Miller, Y. Ioannidis, and R. Ramakrishnan. VLDB '93: Proceedings of the 19th International Conference on Very Large Data Bases, page 120--133. San Francisco, CA, USA, Morgan Kaufmann Publishers Inc., (1993)
C. Britton, S. Jones, M. Kutar, M. Loomes, and B. Robinson. First International Conference on Theory and Application of Diagrams, page 376--391. Edinburgh, Scotland, UK, Springer Berlin, (September 2000)
M. Frank, A. Agarwal, and M. Vernon. Proceedings of the Sixth ACM SIGPLAN Symposium on Principles &
Practice of Parallel Programming, June 18--21, 1997, ACM, (1997)
O. Corby, R. Dieng, and C. Hébert. Conceptual Structures: Logical, Linguistic, and Computational
Issues, 8th International Conference on Conceptual Structures,
ICCS 2000, Darmstadt, Germany, August 14-18, 2000, Proceedings, volume 1867 of LNCS, page 468--482. Springer, (2000)