Please use this identifier to cite or link to this item: http://hdl.handle.net/1942/8010
Title: DFL: A dataflow language based on Petri nets and nested relational calculus
Authors: Hidders, Jan
KWASNIKOWSKA, Natalia 
Sroka, Jacek
Tyszkiewicz, Jerzy
VAN DEN BUSSCHE, Jan 
Issue Date: 2008
Publisher: PERGAMON-ELSEVIER SCIENCE LTD
Source: INFORMATION SYSTEMS, 33(3). p. 261-284
Abstract: In this paper we propose DFL-a formal, graphical workflow language for dataflows, i.e., workflows where large amounts of complex data are manipulated, and the structure of the manipulated data is reflected in the structure of the workflow. It is a common extension of (1) Petri nets, which are responsible for the organization of the processing tasks, and (2) nested relational calculus, which is a database query language over complex objects, and is responsible for handling collections of data items (in particular, for iteration) and for the typing system. We demonstrate that dataflows constructed in a hierarchical manner, according to a set of refinement rules we propose, are semi-sound, i.e., initiated with a single token (which may represent a complex scientific data collection) in the input node, terminate with a single token in the output node (which represents the output data collection). In particular they never leave any "debris data" behind and an output is always eventually computed regardless of how the computation proceeds. (C) 2007 Elsevier B.V. All rights reserved.
Notes: Warsaw Univ, Inst Informat, PL-02097 Warsaw, Poland. Univ Antwerp, Dept Math & Comp Sci, B-2020 Antwerp, Belgium. Hasselt Univ, Theoret Comp Sci Grp, Hasselt, Belgium. Transnatl Univ Limburg, Limburgerhof, Germany.Sroka, J, Warsaw Univ, Inst Informat, Ul Banacha 2, PL-02097 Warsaw, Poland.jan.hidders@ua.ac.be natalia.kwasnikowska@uhasselt.be sroka@minuw.edu.pl jty@mimuw.edu.pl jan.vandenbussche@uhasselt.be
Keywords: DFL; Petri net; workflow system; dataflow; scientific workflow; nested relational calculus
Document URI: http://hdl.handle.net/1942/8010
Link to publication: http/dx.doi.org/10.1016/j.is.2007.09.002
ISSN: 0306-4379
e-ISSN: 1873-6076
ISI #: 000253621500001
Category: A1
Type: Journal Contribution
Validations: ecoom 2009
Appears in Collections:Research publications

Show full item record

WEB OF SCIENCETM
Citations

17
checked on May 22, 2022

Page view(s)

48
checked on May 20, 2022

Google ScholarTM

Check


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.