Using workflow medleys to streamline exploratory tasks

Emanuele Santos, David Koop, Huy T. Vo, Erik W. Anderson, Juliana Freire, Cláudio Silva

Research output: Chapter in Book/Report/Conference proceedingConference contribution


To analyze and understand the growing wealth of scientific data, complex workflows need to be assembled, often requiring the combination of loosely-coupled resources, specialized libraries, distributed computing infrastructure, and Web services. However, constructing these workflows is a non-trivial task, especially for users who do not have programming expertise. This problem is compounded for exploratory tasks, where the workflows need to be iteratively refined. In this paper, we introduce workflow medleys, a new approach for manipulating collections of workflows. We propose a workflow manipulation language that includes operations that are common in exploratory tasks and present a visual interface designed for this language. We briefly discuss how medleys have been applied in two (real) applications.

Original languageEnglish (US)
Title of host publicationScientific and Statistical Database Management - 21st International Conference, SSDBM 2009, Proceedings
Number of pages10
StatePublished - 2009
Event21st International Conference on Scientific and Statistical Database Management, SSDBM 2009 - New Orleans, LA, United States
Duration: Jun 2 2009Jun 4 2009

Publication series

NameLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Volume5566 LNCS
ISSN (Print)0302-9743
ISSN (Electronic)1611-3349


Other21st International Conference on Scientific and Statistical Database Management, SSDBM 2009
Country/TerritoryUnited States
CityNew Orleans, LA

ASJC Scopus subject areas

  • Theoretical Computer Science
  • General Computer Science


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