Linq 2013 session_red_3_kaloudi_kameas

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SEMANTICALLY RICH DESCRIPTION OF E-CF BASED JOB PROFILES Achilles Kameas & Ioanna Kaloudi Hellenic Open University

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Transcript of Linq 2013 session_red_3_kaloudi_kameas

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SEMANTICALLY RICH

DESCRIPTION OF E-CF BASED

JOB PROFILES

Achilles Kameas & Ioanna Kaloudi

Hellenic Open University

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Definition of basic terms

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Occupation

A grouping of jobs involving similar content in terms of tasks and requiring similar types of skills

Job

A set of tasks and duties executed or meant to be executed by one person

Learning outcomes

Statements of what a learner knows, understands and is able to do on completion of a learning process, defined in terms of knowledge, skills and competences

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Problem addressed

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Decoupling the description of jobs, learning

outcomes and courses

Designing courses, based on learning outcomes, that

would meet the specific needs of jobs

Provide a mechanism that would automatically

extract information from job profiles that could be

used for the design of courses

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Ontology

An ontology is usually defined as “a formal, explicit specification of a shared conceptualization” (Gruber, 1993).

A “conceptualization” refers to an abstract model of some phenomenon in the world, which identifies the relevant concepts of that phenomenon.

“Explicit” means that the type of concepts used and the constraints on their use are explicitly defined.

“Formal” refers to the fact that the ontology should be machine readable.

“Shared” reflects the notion that an ontology captures consensual knowledge, that is, it is not private of some individual, but accepted by a group.

An ontology is a structure of knowledge, used as a means of knowledge sharing within a community of heterogeneous entities.

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Methodology and tools

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The software used for the development of the ontology is Protégé 4.1 Ontology Editor and Knowledge Acquisition System (OWL DL language).

The basic steps followed for the comprehension and construction of the ontology are (Noy and McGuiness, 2001).:

Step 1: Determine the domain and scope of the ontology

Step 2: Consider reusing existing ontologies

Step 3: Enumerate important terms in the ontology

Step 4: Define the classes and the class hierarchy

Step 5: Define the properties of classes

Step 6: Define the data properties of the classes

Step 7: Create instances

Step 8: Evaluate the ontology by implementing DL Queries

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Step 1: scope

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The ontology connects the three out of four dimensions of which the European e-Competence Framework (e-CF) consists

d1: e-Competence areas,

d2: e-Competences,

d3: e-Competence Proficiency Levels

d4: knowledge and skills was not included

Then, the aim is to relate the term “Job Profiles” with concepts that already exist in the ontology, e.g. “levels” and “competences”, as for every Job Profile there are specific competences combined with specific levels

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Step 2: consider reuse

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At the time of ontology engineering, no existing

ontology that would satisfy these specific

requirements was located

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Step 3: important terms

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For the main structure the terms introduced are: E-cf

Proficiency Level, EQF Proficiency Level,

eCompetences, Job Profiles

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Step 4: class hierarchy

eCompetences

Enable

Plan

Build

Run

Manage

Proficiency Level

EQF Proficiency Level

eCF Proficiency Level

Job Profiles

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Step 5: object properties

hasProficiencyLevel

eCompetences -> eCFProficiencyLevel

isRelatedTo

eCFProficiencyLevel -> EQFProficienceLevel

haseCompetences

JobProfile -> eCompetences

hasLevel

eCompetences -> ProficienceLevel

isProficiencyLevelFor eCFProficiencyLevel ->

eCompetences

relatesTo

EQFProficienceLevel -> eCFProficiencyLevel

belongsToJobProfile

eCompetences -> JobProfile

isLevelFor

ProficienceLevel -> eCompetences

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Step 7: instances

eCompetences (36 in total)

Enable

Sales Management etc.

Plan

Service Level Management etc.

Build

Design and Development etc.

Run

User Support etc.

Manage

Business Change Management etc.

Proficiency Level

EQF Proficiency Level

EQF3, EQF4, EQF5, EQF6, EQF7, EQF8

eCF Proficiency Level

e1, e2, e3, e4, e5

JobProfiles

Digital Animator

Web Master

Web Designer

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The resulting ontology

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Step 8: evaluation

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Which

competences

are

simultaneousl

y related to

levels e2 and

e5?

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Which of the

Webmaster’s

competences

have level e2

and e3?

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Which job

profiles

require the

Technology

Watching

competence?

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Thank you!

Useful links

e-CoMeT Lab

http://eeyem.eap.gr

eJobs Observatory

www.e-jobs-observatory.eu

ProInternet (PIN) project

www.prointernet-project.eu

CompAAL project

www.compaal.eu

eCompetences Framework (e-CF)

www.ecompetences.eu

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Achilles Kameas can be contacted at

[email protected]