%0 Book Section %B Foundations of Information and Knowledge Systems %D 2004 %T Plan Databases: Model and Algebra %A Yaman,Fusun %A Adali,Sibel %A Nau, Dana S. %A Sapino,Maria %A Subrahmanian,V. %E Seipel,Dietmar %E Turull-Torres,José %K Computer science %X Despite the fact that thousands of applications manipulate plans, there has been no work to date on managing large databases of plans. In this paper, we first propose a formal model of plan databases. We describe important notions of consistency and coherence for such databases. We then propose a set of operators similar to the relational algebra to query such databases of plans. %B Foundations of Information and Knowledge Systems %S Lecture Notes in Computer Science %I Springer Berlin / Heidelberg %V 2942 %P 302 - 319 %8 2004/// %@ 978-3-540-20965-2 %G eng %U http://www.springerlink.com/content/yqhlqtu4te18q2e1/abstract/