The GRAPPLE Infrastructure

Kees van der SluijsEindhoven University of Technology

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GRAPPLE architecture

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GRAPPLE architecture

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GRAPPLE architecture

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GRAPPLE architecture

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LMS

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GALE

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GAT - Domain

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GAT - CAM

GAT - Rule Examples• prerequisite [directed]

– if (user has visited concepts in socket A) then (concepts in socket B are suitable).

– %target% {#suitability & !`(${%source%#knowledge}>%level%)`}

• goal [directed]– user model variable 'knowledge' for all concepts in socket must

be at least of a certain value• knowledge propagation [directed]

– UM variable knowledge propagates from concepts in socket A to concepts in socket B

• start [undirected]– placeholder for concepts which should be presented at the

beginning

Second review/Eindhoven

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GUMF

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GUMF

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GUMF

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UM Interoperability

Query Description SELECT * WHERE { ?stmt ?property ?value . FILTER(user(?stmt) = <http://grapple-project.org/user/alice>)}

Asks for all information about “Alice” that is accessible for the inquirer (access control will be realized in another layer)

SELECT * WHERE { ?stmt ?property ?value . FILTER( user(?stmt) = <http://grapple-project.org/user/alice>) . FILTER( knowledge(user(?stmt), http://../Java).level > 0.4 ) }

Asks for GRAPPLE statements that say something about Alice’s knowledge related to “Java”. Only those statements are returned, which report a knowledge level greater than 0.4.

• Transform data in common data model / format

• User / Application Identification• Query Interface

Rule: [user, test-completed, test-java, level] => [user, knowledge, Programmming, knowledge=level*10]

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GUMF – GAT UI

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GUMF – Administrator UI

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GVIS

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GVISexpected level

learner level

class level

Compact Indicator

Detailedview

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GVIS

learnersConcepts Knowledge level/Expected level reached

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GVISGoalslist Goals

reached

% students reached that goal Goals

learner/class

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GVIS

GRAPPLE Event Bus

GUMF GAT

Extractor

Aggregator

Builder

GVIS

Basic data from datasources

Composes basic data, performs

filters and computations

Maps data into widgets, manages

the dashboards