S. Cranefiel and M. Purvis, “UML as an Ontology Modeling Language,” Proceedings of the Workshop on Intelligent Information Integration, 16th International Joint Conference on Artificial Intelligence, Barcelona, 16-22 July 1999.
 U. Dayal, “Of Nests and Trees: A Unified Approach to Processing Queries That Contain the Nested Sub Queries, Aggregates and Quantifiers,” Proceedings of 13th VLDB Conference, Brighton, 1-4 September 1987, pp. 197-208.
 S. Huaiming, W. Yang, A. Mingyuan, W. Weiping and S. Ninghui, “Query Prediction in Large Scale Data Intensive Event Stream Analysis Systems,” 7th International Conference on Grid and Cooperative Computing, Shenzhen, 24-26 October 2008.
 OMG, “UML Superstructure Specification v 2.0,” 2005. http://www.omg.org/cgi-bin doc? Formal/
 OMG, “Unified Modeling Language Specification,” 2011. http://www.omg.org
 P. M. Kumar, P. Kumarsen and J. Vaideeswasam, “Optimism Analysis of Parallel Queries in Databases through Multicores,” International Journal of Database Management Systems, Vol. 3, No. 1, 2011, 156 p.
 V. Saxena, D. Arora and S. Ahmad, “Object Oriented Distributed Architecture System through UML,” IEEE International Conference on Advanced in Computer Vision and Information Technology, Aurangabad, 28-30 November 2007, pp. 305-310.
 T. Wang, B. Yang, A. Huang, Q. Zhang, J. Gao, D. Yang, S. Tang and J. Niu, “Dynamic Data Migration Policies for Query-Intensive Distributed Data Environments,” APWeb/WAIM 2009, LNCS 5446, Springer-Verlag, Berlin, 2009, pp. 63-75.
 W. Liang, B. Chen and J. X. Yu, “Response Time Constrained Top-k Query Evaluation in Sensor Networks,” 14th IEEE International Conference on Parallel and Distributed Systems, Melbourne, 8-10 December 2008, pp. 575-582. doi:10.1109/ICPADS.2008.65
 S. D. Muruganathan, A. B. Sesay and W. A. Krzymien, “Analytical Query Response Time Evaluation for a Two-Level Clustering Hierarchy Based Wireless Sensor Network Routing Protocol,” Communications Letters, IEEE, Vol. 14, No. 5, 2010, pp. 486-488. doi:10.1109/LCOMM.2010.05.091473
 G. C. Wei and L. T. Ming, “A P2P Object-Oriented Database System That Supports Multi-Attribute and Range Queries with Improved Query Response Time,” Information Technology (ITSim), 2010 International Symposium, Kuala Lumpur, 15-17 June 2010, pp. 1250-1255.
 C. A. Yfoulis, A. Gounaris and D. Tzolas, “Minimization of the Response Time in Parallel Database Queries: An Adaptive Cost-Aware MPC-Based Solution,” 19th Mediterranean Conference on Control & Automation (MED), Corfu, 20-23 June 2011, pp. 813-818.
 R. Tavenard, H. Jegou and L. Amsaleg, “Balancing Clusters to Reduce Response Time Variability in Large Scale Image Search,” 9th International Workshop on Content-Based Multimedia Indexing (CBMI), Madrid, 13-15 June 2011, pp. 19-24. doi:10.1109/CBMI.2011.5972514
 Z. Y. Zhang, L. Bin and C. Zhi, “The Research on the Query Optimization on the Distributed Heterogeneous Database Based on the Response Time,” Computer Science and Network Technology, International Conference, Harbin, 24-26 December 2011, pp. 1541-1544.
 W. Liang, B. Chen and J. X. Yu, “Top-k Query Evaluation in Sensor Networks under Query Response Time Constraint,” Information Sciences: An International Journal, Vol. 181, No. 4, 2011, pp. 869-882. doi:10.1016/j.ins.2010.10.006