Twists – An Operational Representation of Shape

2005 ◽  
pp. 278-297 ◽  
Author(s):  
Gerald Sommer ◽  
Bodo Rosenhahn ◽  
Christian Perwass
Keyword(s):  
Operational Representation

scholarly journals A new operational representation of dependencies in Event Structures

2021 ◽  
Vol Volume 17, Issue 4 ◽  
Author(s):  
G. Michele Pinna
Keyword(s):  
Petri Nets ◽  
Distributed System ◽  
Petri Net ◽  
Event Structure ◽  
Operational Representation ◽  
Event Structures ◽  
Use Context ◽  
Context Dependent

The execution of an event in a complex and distributed system where the dependencies vary during the evolution of the system can be represented in many ways, and one of them is to use Context-Dependent Event structures. Event structures are related to Petri nets. The aim of this paper is to propose what can be the appropriate kind of Petri net corresponding to Context-Dependent Event structures, giving an operational flavour to the dependencies represented in a Context/Dependent Event structure. Dependencies are often operationally represented, in Petri nets, by tokens produced by activities and consumed by others. Here we shift the perspective using contextual arcs to characterize what has happened so far and in this way to describe the dependencies among the various activities.

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