J. A. Miller, W. D. Potter, K. J. Kochut, A. A. Keskin, and E. Ucar, The Active KDL ObjectOriented Database System and Its Application to Simulation Support, International Journal of Object-Oriented Programming, vol. 4, pp. 30-45, 1991.  Home/Search   Document Details and Download   Summary   Related Articles   Check

....functions. Heuristics are functions or rules. Methods are functions that are more general than heuristics in that they can take any number of parameters and allow limited side effects (such as producing output) to occur. For a further discussion of the KDM and KDL readers may refer to [57 59]. object type : OBJECT TYPE: class name HAS [SUPERTYPES: Generalization class name , class name ; SUBTYPES: Specialization class name , class name [HIDING function list] ATTRIBUTES: Aggregation attribute name: type name [WITH CONSTRAINT: constraint ] ....

J. A. Miller, W. D. Potter, K. J. Kochut, A. A. Keskin, and E. Ucar, The Active KDL ObjectOriented Database System and Its Application to Simulation Support, International Journal of Object-Oriented Programming, vol. 4, pp. 30-45, 1991.

.... Query Driven Simulation Query Driven Simulation is based on the tenet that simulation analysts as well as naive users should see a system based upon QDS as a sophisticated information system which will be able to store or generate information about the behavior of systems the user wishes to study [7, 8, 9, 10, 11, 13]. This means that the user must be provided with an easy to use environment where he she may trigger an action using a simple query language. The third chapter in this thesis is devoted to discussing QDS in general and the current implementation of the QDS framework and environment. 6 1.3 ....

Miller, J. A.; Potter, W. D.; Kochut, K. J.; Keskin, A.; and Ucar, E. (1991) The active KDL object-oriented database system and its application to simulation support, Journal of Object-Oriented Programming.

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John A. Miller, Walter D. Potter, Krys J. Kochut, Ali A. Keskin and Ender Ucar, 1991a. "The Active KDL Object-Oriented Database System and Its Application to Simulation Support," Journal of Object-Oriented Programming, Special Issue on Databases, Vol 4, No 4, JulyAugust 1991, pp. 30-45.

....Suls88] or the search methods to link it to existing databases, such as GenBank. The ability to store arbitrarily complex methods in the object oriented database allows simulation animation features to be tightly integrated with the database. This is the idea behind query driven simulation [Mill89, Mill90, Pott90, Mill91a, Mill91b, Mill91c, Mill91d, Koch91]. By simply submitting a query to a query driven simulation system, information about objects (which may be simulation generated) will be displayed. For example, the scientist can watch as a gene or DNA fragment is being integrated into a physical map. 2. BACKGROUND We have developed a Contig ....

....parameters, statistics, histograms, graphs, animations, and models) a database management system with greater functionality than a relational database system is required. The heart of the system we are developing is an object oriented database system called Active KDL (Knowledge Data Language) [Mill90, Mill91d, Pott91]. Much of the current research and development [Kim89b] in the database field involves object oriented database systems, as they provide more powerful constructs for structural and behavioral specification. Well known systems include ODE [Agra89] ONTOS [Andr89] GemStone [Cope84, Maie86] Iris ....

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Miller, J.A., W.D. Potter, K.J. Kochut, A.A. Keskin and E. Ucar, "The Active KDL Object-Oriented Database System and Its Application to Simulation Support," Journal of Object-Oriented Programming, Special Issue on Databases, Vol. 4, No. 4 (July-August 1991).

....Driven Simulation (QDS) system can be built. Users see a QDS system as an integrated information system that is able to present the results of simulations in an understandable manner, and if adequate results are not available, it can execute simulation models to produce an adequate set of results [Mill89, Mill90, Pott90, Mill91a, Koch91, Mill91b, Mill91c, Pott92, Mill92, Pott93b]. Much of our previous work has focused on developing a tightly coupled system based on using an object oriented database system (Active KDL [Mill91a] which includes a database programming language that is sufficiently powerful to express simulation models. Note, Active KDL is an extension to ....

John A. Miller, Walter D. Potter, Krys J. Kochut, Ali A. Keskin and Ender Ucar, "The Active KDL Object-Oriented Database System and Its Application to Simulation Support," Journal of Object-Oriented Programming, Special Issue on Databases, Vol. 4, No. 4 (JulyAugust 1991) pp. 30-45.

.... three sublanguages: the schema definition language (SDL) the query language (QL) and the database programming language (DBPL) Because of the capabilities and elegance of these sublanguages, Active KDL is capable of supporting demanding applications (e.g. Simulation [Mill90] Model Management [Mill91c], Computer Aided Design (CAD) Pola91] Genome Database [Mill92b] and Intelligent Database Applications such as a university knowledge data base capable of advising students [Pott88a] Integrating the three foundation areas via Active KDL is the focus of our work (and has been since the ....

....Integrating the three foundation areas via Active KDL is the focus of our work (and has been since the mid 1980 s) and represents the primary difference between Active KDL and other object oriented database systems. The underlying foundation of KDL [Pott87, Pott88b] as well as Active KDL [Mill90, Mill91a, Mill91c, Pott90] is the hyper semantic data model KDM (Knowledge Data Model) Pott86, Pott88b, Pott89] Hyper semantic data models provide extensive modeling capabilities that include those of standard semantic data models and object oriented data models [Atch89, Lee90, Pott88b, Pott89] The scope of modeling ....

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Miller, J. A., W. D. Potter, K. J. Kochut, A. A. Keskin and E. Ucar, The Active KDL Object-Oriented Database System and Its Application to Simulation Support, Journal of Object-Oriented Programming. Special Issue on Databases 4, 4 1991, 30-45.

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Miller, J.A., Potter, W.D., Kochut, K.J., Keskin, A., and Ucar, E. (1991a). The active KDL objectoriented database system and its application to simulation support. Journal of Object-Oriented Programming, 4(4): pp. 30-45.

.... provide versioning capabilities (Kim 1990) for application reasons (Biliris 1989) A secondary motivation for this work is to select protocols suitable for concurrency control in the query driven simulation system that is being developed at the University of Georgia (Miller and Weyrich 1989; Miller et al. 1990, 1991a, 1991b, 1992b; Kochut, Miller and Potter 1991) Query driven simulation is an approach to simulation modeling and analysis that uses database technology to automate the storage and retrieval of simulation data and simulation models. The fundamental tenet of query driven simulation is that ....

....chain models where X (t ) represents the state of a transaction at time t . In the derivation we showed that any service time distribution will work; it does not have to be exponential. From a simulation modeling point of view, active objects in the database can be modeled as SIMODULA processes (Miller et al. 1990; Miller and Griffeth 1991, 1992) SIMODULA is a simple process oriented simulation system coded in Modula 2 (Miller, Weyrich and Suen 1988; Miller and Weyrich 1989; Miller et al. 1992b) In the script procedure used for these processes, a transacting active object repeatedly performs ....

Miller, J.A., W.D. Potter, K.J. Kochut, A.A. Keskin and E. Ucar. 1991b. The Active KDL object-oriented database system and its application to simulation support. Journal of Object-Oriented Programming, Special Issue on Databases, 4:4, pp. 30-45.

....builder constructs a static representation of the simulation model. JSIM provides for the animation of this static representation through incorporating animation facilities within each simulation component. One of the key concepts in the development of JSIM is Query Driven Simulation (QDS) 5] [6], 7] 8] 9] QDS is based on the tenet that simulation analysts as well as naive users should see a system based upon QDS as a sophisticated information system which will be able to store or generate information about the behavior of systems the user wishes to study. QDS suggests using a ....

J. A. Miller, W. D. Potter, K. J. Kochut, A. Keskin and E. Ucar. The active KDL object-oriented database system and its application to simulation support. Journal of ObjectOriented Programming, 4(4):30-45, 1991.

....Database Protocols, Transaction Management, Concurrency Control, Recovery, Parallel Distributed Simulation Protocols, Object Oriented Databases. 1. Introduction The initial motivation for this work was to select protocols suitable for concurrency control in a Query Driven Simulation system [1 7]. Query Driven Simulation is an approach to simulation modeling and analysis that uses database technology to automate the storage and retrieval of simulation data and simulation models. The fundamental tenet of Query Driven Simulation is that simulationists or even naive users should see a ....

....The simulation results presented in this paper and in [15] indicate that this assumption is justified. A second way to improve performance is to have multiple versions of objects [17, ############### The foundation of our Query Driven Simulation system is Active KDL (Knowledge Data Language) [2, 3, 5, 6, 7]. Active KDL is a functional object oriented database system supporting Query Driven Simulation by providing access to integrated data, knowledge, and model bases. The three sublanguages of Active KDL provide support for simulation modeling and analysis: Complex simulations may be structured using ....

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J.A. Miller, W.D. Potter, K.J. Kochut, A.A. Keskin and E. Ucar, "The Active KDL ObjectOriented Database System and Its Application to Simulation Support," Journal of ObjectOriented Programming, Special Issue on Databases, July-August 1991, pp. 30-45.

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