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On the Expressive Power of a Language for Programming Coordination Media / APICe

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#setobjectspace("Publications") #docobj() #nolangpar()

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#hidepub()

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#bibtomap() #themodebar( $currentModeList $mode $action ) #nodoclang()
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1998 ACM Symposium on Applied Computing (SAC'98), Failed to execute the [velocity] macro. Cause: [The execution of the [velocity] script macro is not allowed in [xwiki:Macros.Language.StringEngIta]. Check the rights of its last author or the parameters if it's rendered from another script.]. Click on this message for details.
169–177
ACM
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1998

A programmable coordination medium is a shared communication device whose behaviour can be defined by means of a suitable programming language according to the global system needs. This notion has indeed an impact over the design of multi-component software system, since (part of) the system computational charge of can be in principle shifted from the communicating components (agents) to the communication device.

At the same time, this raises the issue of the computational power of a programmable coordination medium, and of its expressiveness. As a meaningful example, this paper discusses the case of Failed to execute the [velocity] macro. Cause: [The execution of the [velocity] script macro is not allowed in [xwiki:Macros.Names.Respect]. Check the rights of its last author or the parameters if it's rendered from another script.]. Click on this message for details.
, the first-order logic language used by the Failed to execute the [velocity] macro. Cause: [The execution of the [velocity] script macro is not allowed in [xwiki:Macros.Names.Aclt]. Check the rights of its last author or the parameters if it's rendered from another script.]. Click on this message for details.
coordination model to define the behaviour of its multiple programmable logic tuple spaces, called tuple centres. Its expressiveness is discussed first by comparing Failed to execute the [velocity] macro. Cause: [The execution of the [velocity] script macro is not allowed in [xwiki:Macros.Names.Respect]. Check the rights of its last author or the parameters if it's rendered from another script.]. Click on this message for details.
with Petri Nets, taken as a reference model for the specification and design of concurrent and distributed systems, then by presenting some simple cases of coordination systems designed around Failed to execute the [velocity] macro. Cause: [The execution of the [velocity] script macro is not allowed in [xwiki:Macros.Names.Respect]. Check the rights of its last author or the parameters if it's rendered from another script.]. Click on this message for details.
-programmed logic tuple spaces. Finally, we show that Failed to execute the [velocity] macro. Cause: [The execution of the [velocity] script macro is not allowed in [xwiki:Macros.Names.Respect]. Check the rights of its last author or the parameters if it's rendered from another script.]. Click on this message for details.
is Turing-powerful. This makes it possible to freely split the computational load of an ACLT-based architecture between the communicating components and the communication device according to the design needs. In particular, this allows local and global system properties to be embodied where they naturally fit in, that is, respectively, into the coordination entities (Failed to execute the [velocity] macro. Cause: [The execution of the [velocity] script macro is not allowed in [xwiki:Macros.Names.Aclt]. Check the rights of its last author or the parameters if it's rendered from another script.]. Click on this message for details.
agents) and the coordination media (Failed to execute the [velocity] macro. Cause: [The execution of the [velocity] script macro is not allowed in [xwiki:Macros.Names.Aclt]. Check the rights of its last author or the parameters if it's rendered from another script.]. Click on this message for details.
tuple centres).

${mainspace}.class_event-venue_short

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#eventicon() #eventlinked($event)
#eventicon() #eventlinked($event)

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