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Robert G. Abbott
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Sandia Cognitive Foundry

H2 Database Engine

RBB: Relational Blackboard


The Relational Blackboard (RBB) is an open-source (BSD) implementation of the Blackboard concept for temporal information. It allows components of an application to:

A main objective of RBB is high performance, so applications can deeply leverage the blackboard concept (instead of retrieving long-lived local copies of data for processing). RBB is implemented on the H2 Relational Database, which provides persistence and location transparency. The features of RBB include:


Imagine you have a database of soccer games. For each game you have the position and identity of each player and the ball over time. You might want to find events such as: This example is developed on the Soccer Example page.


RBB site contact