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{{Content OP Proposal Template
|SubmittedBy=MonikaSolanki
|Name=Reactor pattern
|Intent=The remit of the reactor pattern is to enable the modelling of reactive processes that consume inputs and produce outputs under specific environmental conditions and on being triggered by certain events.
|CompetencyQuestion=1. What are the inputs consumed by a certain process?,
2. What environmental conditions need to hold for the process to get activated?,
3. What are the outputs produced by the process?,
4. Which event triggers a specific process?,
5. What is the measurement criteria for a specific parameter?
|ContentODPDescription=The reactor pattern provides a building block for the ontological modelling of reactive processes. The pattern can be used across domains in scenarios where a reactor is used to run processes that consume inputs to produce outputs under controlled environmental conditions and when triggered by certain events. As an example, the pattern has been applied to the algal biomass domain to model the reactive process of algae cultivation.
|ReusableOWLBuildingBlock=http://windermere.aston.ac.uk/~monika/ontologies/Reactor.owl
|Consequences=The main advantage of this pattern is that its provides ontological
modelling capabilities for the inputs, outputs and environmental
conditions that govern reactive processes across several domains,
independent of modelling details of the actual reactor involved. This
effectively caters for exposing a black box view of the process, which
is very desirable when querying the model for consumption and
production logistics of the process.
|Scenario=As an exemplifier for the reactor pattern, we present a use case fromthe domain of algal biomass. We employ the reactor pattern in anontology OntoMDL. The ontology models a process for algal biomasscultivation. OntoMDL implements the Minimum DescriptiveLanguage(MDL) standard  prescribed by the AlgalBiomass Organisation(ABO) for algal operation. The set of descriptivemetrics recommended by MDL as inputs to the process are carbon, water,total infrastructure area, total energy, nutrients, consumables andlabour. Possible outputs from the process are algal constituentproducts, indirect algal products, uncaptured gas emission, liquidwaste output, solid waste output. Some environmental conditions thatmust hold for the algae to be harvested are, (1)The water must be in a temperature range that will support the specific algal species being grown.(2)The pH range for most cultured algal species should be between 7 and 9, with the optimum range being 8.2-8.7.The event that triggers of the algae cultivation is the addition of the source culture to the growing containers or reactors.
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{{Has Element Template
|HasElement=definesCondition
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{{Has Element Template
|HasElement=hasEnvironemntalCondition
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{{Has Element Template
|HasElement=hasInputParameter
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{{Has Element Template
|HasElement=hasMeasurement
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{{Has Element Template
|HasElement=hasOutputParameter
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{{Has Element Template
|HasElement=hasProcessParameter
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{{Has Element Template
|HasElement=triggeredBy
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{{Has Element Template
|HasElement=hasDescription
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{{Has Element Template
|HasElement=EnvironmentalCondition
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{{Has Element Template
|HasElement=Event
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{{Has Element Template
|HasElement=InputParameter
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{{Has Element Template
|HasElement=OutputParameter
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{{Has Element Template
|HasElement=Process
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{{Has Element Template
|HasElement=ProcessParameter
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{{Has Element Template
|HasElement=ReactiveProcess
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{{Additional information header}}
The Reactor Pattern enables the modelling of processes that consume inputs and produce outputs under specific environmental conditions and on being triggered by certain events. Reactor pattern is a content ontology design pattern and is especially targeted towards modelling reactive processes with a black box view of the process.
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{{Submission to event
|Event=WOP:2012
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[[Category:Review assigned]]