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Diagram

Image:Reactor-pattern.png

General description
Name: Reactor pattern
Submitted by: MonikaSolanki
Also Known As:
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.
Domains:
Competency Questions:
  • 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?
    		•
    Solution description: 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.
    Reusable OWL Building Block: [http://windermere.aston.ac.uk/~monika/ontologies/Reactor.owl](http://ontologydesignpatterns.org/wiki/index.php?title=Special:ClickHandler&link=http://windermere.aston.ac.uk/~monika/ontologies/Reactor.owl&message=OWL building block&from_page_id=3357&update=) (863)
    Consequences: The main advantage of this pattern is that its provides ontologicalmodelling capabilities for the inputs, outputs and environmentalconditions that govern reactive processes across several domains,independent of modelling details of the actual reactor involved. Thiseffectively caters for exposing a black box view of the process, whichis very desirable when querying the model for consumption andproduction logistics of the process.
    Scenarios: 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.
    Known Uses:
    Web References:
    Other References:
    Examples (OWL files):
    Extracted From:
    Reengineered From:
    Has Components:
    Specialization Of:
    Related CPs:

    Elements

    The Reactor pattern Content OP locally defines the following ontology elements:

    ObjectProperty definesCondition (owl:ObjectProperty) definesCondition page ObjectProperty hasEnvironemntalCondition (owl:ObjectProperty) hasEnvironemntalCondition page ObjectProperty hasInputParameter (owl:ObjectProperty) hasInputParameter page ObjectProperty hasMeasurement (owl:ObjectProperty) hasMeasurement page ObjectProperty hasOutputParameter (owl:ObjectProperty) hasOutputParameter page ObjectProperty hasProcessParameter (owl:ObjectProperty) hasProcessParameter page ObjectProperty triggeredBy (owl:ObjectProperty) triggeredBy page DatatypeProperty hasDescription (owl:DatatypeProperty) hasDescription page Class EnvironmentalCondition (owl:Class) An entity that represents the environmental condition EnvironmentalCondition page Class Event (owl:Class) An entity representing the event that triggers the process Event page Class InputParameter (owl:Class) An entity representing the input to a process InputParameter page Class OutputParameter (owl:Class) An entity representing the output to a process OutputParameter page Class Process (owl:Class) An entity representing a placeholder for a process. Process page Class ProcessParameter (owl:Class) An overarching entity representing the parameters defined for the process ProcessParameter page Class ReactiveProcess (owl:Class) An entity representing a reactive process ReactiveProcess page

    Additional information

    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.

    Scenarios

    Scenarios about Reactor pattern No scenario is added to this Content OP.

    Reviews

    Reviews about Reactor pattern

    Review article Posted on About revision (current is 11175)
    AlessandroAdamou about Reactor pattern 245616424 August 2012 1115511,155
    AndreaNuzzolese about Reactor pattern 245616929 August 2012 1117511,175
    VojtechSvatek about Reactor pattern 245617131 August 2012 1117511,175
    IonelVirgilPop about Reactor pattern 245616424 August 2012 1117511,175

    This revision (revision ID 11175) takes in account the reviews: none

    Other info at evaluation tab

    Modeling issues

    Modeling issues about Reactor pattern There is no Modeling issue related to this proposal.

    References

    Submission to eventWOP:2012