3D visualization of rule processing in active databases
Thierry Coupaye, Claudia Roncancio, Christophe Bruley, J. Larramona · 1997
This paper presents our approach for visualizing active rule executions. Our tool (Vizar) exploits new visualization paradigms, such as 3D graphics and animations, to allow a convenient visualization of many aspects of Active DBMS execution models. CR Categoriesand Subject Descriptors: I.3.7 [Computer Graphics]:Three-Dimensional Graphics and Realism; H.2.m[Database management]: Miscellaneous Additional Keywords: Data Visualization, Active Databases 1 INTRODUCTION In a classical DBMS, operations and queries on data are executed after an explicit request submitted by a user or an application. These systems are referred as passive, as opposed to active DBMS (ADBMS) that are able to automatically execute predefined actions in reaction to specific events when some conditions are satisfied. Most active systems are based on the concept of active rules of the form Event-Condition-Action (ECA). The general semantics of an ECA rule is: "when an event of type E occurs (we say that the...