The importance of maintaining provenance has been widely recognized, particularly with respect to highly-manipulated data. Currently there are two approaches: provenance generated within workflow frameworks, and provenance within a contained relational database. The workflow provenance allows workflow re-execution, and can offer some explanation of results. Within relational databases, knowledge of SQL queries and relational operators is used to express what happened to a tuple.Black areas indicate an adequate provenance answer; grey areas show inadequate provenance answers. ... Table 5.2, Q, and the Preliminary Investigation User Questions, P. 105 5.5 User S atisf action with Answers provided by Process Provenance, Lineage ... Query execution time for provenance answers 121 5.14 An abstract overview of the provenance needs of a Scientific Workflow System, from theanbsp;...
|Title||:||Incorporating Provenance in Database Systems|
|Author||:||Adriane P. Chapman|
|Publisher||:||ProQuest - 2008|