Lluís Ariño
@larinyo.bsky.social
The learning belongs to the learner
For researchers: DC4EU schemas require mandatory mapping to DigComp for digital competency credentials.
This creates structured, comparable data across EU institutions.
Interesting implications for skills gap analysis and labour market research.
#AcademicResearch #DigComp
This creates structured, comparable data across EU institutions.
Interesting implications for skills gap analysis and labour market research.
#AcademicResearch #DigComp
November 26, 2025 at 11:57 AM
For researchers: DC4EU schemas require mandatory mapping to DigComp for digital competency credentials.
This creates structured, comparable data across EU institutions.
Interesting implications for skills gap analysis and labour market research.
#AcademicResearch #DigComp
This creates structured, comparable data across EU institutions.
Interesting implications for skills gap analysis and labour market research.
#AcademicResearch #DigComp
The EU skills ecosystem is becoming coherent:
DigComp → digital competences
ESCO → occupational skills
EQF → qualification levels
ELM → learning model
All interoperable via W3C Verifiable Credentials.
That's DC4EU's contribution.
#EuropeanSkills #W3CVCDM
DigComp → digital competences
ESCO → occupational skills
EQF → qualification levels
ELM → learning model
All interoperable via W3C Verifiable Credentials.
That's DC4EU's contribution.
#EuropeanSkills #W3CVCDM
November 26, 2025 at 11:57 AM
The EU skills ecosystem is becoming coherent:
DigComp → digital competences
ESCO → occupational skills
EQF → qualification levels
ELM → learning model
All interoperable via W3C Verifiable Credentials.
That's DC4EU's contribution.
#EuropeanSkills #W3CVCDM
DigComp → digital competences
ESCO → occupational skills
EQF → qualification levels
ELM → learning model
All interoperable via W3C Verifiable Credentials.
That's DC4EU's contribution.
#EuropeanSkills #W3CVCDM
IMPLEMENTATION RESOURCES AVAILABLE:
Complete documentation public:
• ELM v3.2 specifications (semantic model)
• W3C VCDM implementation (JSON-LD contexts)
• Governance frameworks (DG-EMPL coordination)
• 36 institutional case studies
• Technical architecture (3 trust models)
🔗 www.dc4eu.eu/reports/
Complete documentation public:
• ELM v3.2 specifications (semantic model)
• W3C VCDM implementation (JSON-LD contexts)
• Governance frameworks (DG-EMPL coordination)
• 36 institutional case studies
• Technical architecture (3 trust models)
🔗 www.dc4eu.eu/reports/
Reports - DC4EU
Visit our DC4EU project deliverable page and download our public research reports on our strategic areas once submitted.
www.dc4eu.eu
November 25, 2025 at 4:58 AM
IMPLEMENTATION RESOURCES AVAILABLE:
Complete documentation public:
• ELM v3.2 specifications (semantic model)
• W3C VCDM implementation (JSON-LD contexts)
• Governance frameworks (DG-EMPL coordination)
• 36 institutional case studies
• Technical architecture (3 trust models)
🔗 www.dc4eu.eu/reports/
Complete documentation public:
• ELM v3.2 specifications (semantic model)
• W3C VCDM implementation (JSON-LD contexts)
• Governance frameworks (DG-EMPL coordination)
• 36 institutional case studies
• Technical architecture (3 trust models)
🔗 www.dc4eu.eu/reports/
COMPLETE CAREER PATHWAY VALIDATED:
Primary → Secondary → VET → Higher Education → Professional Practice → CPD → Alumni
All credential types built on:
• Single semantic foundation (ELM v3.2)
• Single technical standard (W3C VCDM JSON-LD)
Unprecedented European interoperability achieved
Primary → Secondary → VET → Higher Education → Professional Practice → CPD → Alumni
All credential types built on:
• Single semantic foundation (ELM v3.2)
• Single technical standard (W3C VCDM JSON-LD)
Unprecedented European interoperability achieved
November 25, 2025 at 4:58 AM
COMPLETE CAREER PATHWAY VALIDATED:
Primary → Secondary → VET → Higher Education → Professional Practice → CPD → Alumni
All credential types built on:
• Single semantic foundation (ELM v3.2)
• Single technical standard (W3C VCDM JSON-LD)
Unprecedented European interoperability achieved
Primary → Secondary → VET → Higher Education → Professional Practice → CPD → Alumni
All credential types built on:
• Single semantic foundation (ELM v3.2)
• Single technical standard (W3C VCDM JSON-LD)
Unprecedented European interoperability achieved
W3C VCDM RICH DATA IMPACT:
• Skills visibility: ESCO in credentials = automated job matching
• Automated recognition: EQF/NQF machine-processable
• Labour market integration: Employers query specific competencies via JSON-LD
• Rich metadata = progressive credential building
Skills mobility enabled
• Skills visibility: ESCO in credentials = automated job matching
• Automated recognition: EQF/NQF machine-processable
• Labour market integration: Employers query specific competencies via JSON-LD
• Rich metadata = progressive credential building
Skills mobility enabled
November 25, 2025 at 4:58 AM
W3C VCDM RICH DATA IMPACT:
• Skills visibility: ESCO in credentials = automated job matching
• Automated recognition: EQF/NQF machine-processable
• Labour market integration: Employers query specific competencies via JSON-LD
• Rich metadata = progressive credential building
Skills mobility enabled
• Skills visibility: ESCO in credentials = automated job matching
• Automated recognition: EQF/NQF machine-processable
• Labour market integration: Employers query specific competencies via JSON-LD
• Rich metadata = progressive credential building
Skills mobility enabled
VET CREDENTIALS & semantic data:
EUVETMC (VET Microcredential):
• EQAVET quality assurance integrated via JSON-LD
• ECVET machine-readable
• ESCO competencies linked
• Work-based learning outcomes verifiable
ELM governance under DG-EMPL semantic framework across HE + VET + Professional
#VET #EQAVET
EUVETMC (VET Microcredential):
• EQAVET quality assurance integrated via JSON-LD
• ECVET machine-readable
• ESCO competencies linked
• Work-based learning outcomes verifiable
ELM governance under DG-EMPL semantic framework across HE + VET + Professional
#VET #EQAVET
November 25, 2025 at 4:58 AM
FOR DG-EMPL
ProfessionalID validated - CGCOM medical pilot:
• Professional qualifications: Weeks → minutes verification
• Sectoral frameworks integrated (medical specialties)
• CPD documentation throughout career
• Directive 2005/36/EC
Professional mobility enabled
#ProfessionalQualifications
ProfessionalID validated - CGCOM medical pilot:
• Professional qualifications: Weeks → minutes verification
• Sectoral frameworks integrated (medical specialties)
• CPD documentation throughout career
• Directive 2005/36/EC
Professional mobility enabled
#ProfessionalQualifications
November 25, 2025 at 4:58 AM
FOR DG-EMPL
ProfessionalID validated - CGCOM medical pilot:
• Professional qualifications: Weeks → minutes verification
• Sectoral frameworks integrated (medical specialties)
• CPD documentation throughout career
• Directive 2005/36/EC
Professional mobility enabled
#ProfessionalQualifications
ProfessionalID validated - CGCOM medical pilot:
• Professional qualifications: Weeks → minutes verification
• Sectoral frameworks integrated (medical specialties)
• CPD documentation throughout career
• Directive 2005/36/EC
Professional mobility enabled
#ProfessionalQualifications
FOR DG-CNECT | DIGITAL INFRASTRUCTURE
W3C VCDM validated as eIDAS EAA foundation:
• 16 countries (EUDI Wallet)
• EBSI linked data registries production-ready
• 2 trust models (PKI, EBSI Hybrid)
Educational sector provides eIDAS reference implementation with rich data
#eIDAS2 #EUDIWallet #EBSI
W3C VCDM validated as eIDAS EAA foundation:
• 16 countries (EUDI Wallet)
• EBSI linked data registries production-ready
• 2 trust models (PKI, EBSI Hybrid)
Educational sector provides eIDAS reference implementation with rich data
#eIDAS2 #EUDIWallet #EBSI
November 25, 2025 at 4:58 AM
FOR DG-CNECT | DIGITAL INFRASTRUCTURE
W3C VCDM validated as eIDAS EAA foundation:
• 16 countries (EUDI Wallet)
• EBSI linked data registries production-ready
• 2 trust models (PKI, EBSI Hybrid)
Educational sector provides eIDAS reference implementation with rich data
#eIDAS2 #EUDIWallet #EBSI
W3C VCDM validated as eIDAS EAA foundation:
• 16 countries (EUDI Wallet)
• EBSI linked data registries production-ready
• 2 trust models (PKI, EBSI Hybrid)
Educational sector provides eIDAS reference implementation with rich data
#eIDAS2 #EUDIWallet #EBSI
EducationalID IMPACT:
Traditional diploma verification:
❌ Weeks manual processing
❌ Bilateral agreements required
With EducationalID:
✅ Instant cryptographic verification
✅ Machine-readable learning outcomes
✅ Automated EQF/ECTS
Bologna Process digitally operationalized
#HigherEducation #EUNIS
Traditional diploma verification:
❌ Weeks manual processing
❌ Bilateral agreements required
With EducationalID:
✅ Instant cryptographic verification
✅ Machine-readable learning outcomes
✅ Automated EQF/ECTS
Bologna Process digitally operationalized
#HigherEducation #EUNIS
November 25, 2025 at 4:58 AM
EducationalID IMPACT:
Traditional diploma verification:
❌ Weeks manual processing
❌ Bilateral agreements required
With EducationalID:
✅ Instant cryptographic verification
✅ Machine-readable learning outcomes
✅ Automated EQF/ECTS
Bologna Process digitally operationalized
#HigherEducation #EUNIS
Traditional diploma verification:
❌ Weeks manual processing
❌ Bilateral agreements required
With EducationalID:
✅ Instant cryptographic verification
✅ Machine-readable learning outcomes
✅ Automated EQF/ECTS
Bologna Process digitally operationalized
#HigherEducation #EUNIS
FOR DG-EAC | EDUCATION & CULTURE
EducationalID encompasses:
• EUHED (Higher Education Diplomas): Bachelor, Master, Doctoral with rich semantic
• EUHEMC (Microcredentials): 1-15 ECTS verified learning
• AllianceID: 60+ European University Alliances mobility
#ErasmusPlus #EuropeanEducationArea
EducationalID encompasses:
• EUHED (Higher Education Diplomas): Bachelor, Master, Doctoral with rich semantic
• EUHEMC (Microcredentials): 1-15 ECTS verified learning
• AllianceID: 60+ European University Alliances mobility
#ErasmusPlus #EuropeanEducationArea
November 25, 2025 at 4:58 AM
FOR DG-EAC | EDUCATION & CULTURE
EducationalID encompasses:
• EUHED (Higher Education Diplomas): Bachelor, Master, Doctoral with rich semantic
• EUHEMC (Microcredentials): 1-15 ECTS verified learning
• AllianceID: 60+ European University Alliances mobility
#ErasmusPlus #EuropeanEducationArea
EducationalID encompasses:
• EUHED (Higher Education Diplomas): Bachelor, Master, Doctoral with rich semantic
• EUHEMC (Microcredentials): 1-15 ECTS verified learning
• AllianceID: 60+ European University Alliances mobility
#ErasmusPlus #EuropeanEducationArea
W3C -VCDM enables rich linked data:
• JSON-LD: Machine-readable semantics
• Rich metadata: Complex relationships between outcomes, competencies, assessments
• Linked vocabularies: ESCO skills, EQF levels, QA frameworks
• Extensibility
Technical excellence validated
#W3C #LinkedData
• JSON-LD: Machine-readable semantics
• Rich metadata: Complex relationships between outcomes, competencies, assessments
• Linked vocabularies: ESCO skills, EQF levels, QA frameworks
• Extensibility
Technical excellence validated
#W3C #LinkedData
November 25, 2025 at 4:58 AM
W3C -VCDM enables rich linked data:
• JSON-LD: Machine-readable semantics
• Rich metadata: Complex relationships between outcomes, competencies, assessments
• Linked vocabularies: ESCO skills, EQF levels, QA frameworks
• Extensibility
Technical excellence validated
#W3C #LinkedData
• JSON-LD: Machine-readable semantics
• Rich metadata: Complex relationships between outcomes, competencies, assessments
• Linked vocabularies: ESCO skills, EQF levels, QA frameworks
• Extensibility
Technical excellence validated
#W3C #LinkedData
TECHNICAL FOUNDATION: Why ELM + W3C VCDM matters
ELM = unified semantic foundation
• All education levels (Primary → Lifelong)
• All frameworks (EQF, NQF, sectoral)
• All contexts (formal, informal, work-based)
Enables machine understanding of learning achievements across borders
#SemanticWeb #ELM
ELM = unified semantic foundation
• All education levels (Primary → Lifelong)
• All frameworks (EQF, NQF, sectoral)
• All contexts (formal, informal, work-based)
Enables machine understanding of learning achievements across borders
#SemanticWeb #ELM
November 25, 2025 at 4:58 AM
TECHNICAL FOUNDATION: Why ELM + W3C VCDM matters
ELM = unified semantic foundation
• All education levels (Primary → Lifelong)
• All frameworks (EQF, NQF, sectoral)
• All contexts (formal, informal, work-based)
Enables machine understanding of learning achievements across borders
#SemanticWeb #ELM
ELM = unified semantic foundation
• All education levels (Primary → Lifelong)
• All frameworks (EQF, NQF, sectoral)
• All contexts (formal, informal, work-based)
Enables machine understanding of learning achievements across borders
#SemanticWeb #ELM
VALIDATED IMPACT:
• 80% cost reduction (measured)
• 45 minutes → <5 minutes (verification)
• 7.1/10 user satisfaction (n=273 end-users)
• 75% post-pilot continuation (commitment)
• 100% cross-border interoperability
Production viability demonstrated, not theoretical feasibility
#EmpiricalResearch
• 80% cost reduction (measured)
• 45 minutes → <5 minutes (verification)
• 7.1/10 user satisfaction (n=273 end-users)
• 75% post-pilot continuation (commitment)
• 100% cross-border interoperability
Production viability demonstrated, not theoretical feasibility
#EmpiricalResearch
November 25, 2025 at 4:58 AM
VALIDATED IMPACT:
• 80% cost reduction (measured)
• 45 minutes → <5 minutes (verification)
• 7.1/10 user satisfaction (n=273 end-users)
• 75% post-pilot continuation (commitment)
• 100% cross-border interoperability
Production viability demonstrated, not theoretical feasibility
#EmpiricalResearch
• 80% cost reduction (measured)
• 45 minutes → <5 minutes (verification)
• 7.1/10 user satisfaction (n=273 end-users)
• 75% post-pilot continuation (commitment)
• 100% cross-border interoperability
Production viability demonstrated, not theoretical feasibility
#EmpiricalResearch
COMPLETE METHODOLOGY & DATA:
Student mobility validation documentation:
• Baseline process analysis
• Performance measurements
• User satisfaction surveys
• Privacy compliance validation
🔗 www.dc4eu.eu/reports/
#OpenData #EuropeanUniversities
Student mobility validation documentation:
• Baseline process analysis
• Performance measurements
• User satisfaction surveys
• Privacy compliance validation
🔗 www.dc4eu.eu/reports/
#OpenData #EuropeanUniversities
Reports - DC4EU
Visit our DC4EU project deliverable page and download our public research reports on our strategic areas once submitted.
www.dc4eu.eu
November 22, 2025 at 7:03 AM
COMPLETE METHODOLOGY & DATA:
Student mobility validation documentation:
• Baseline process analysis
• Performance measurements
• User satisfaction surveys
• Privacy compliance validation
🔗 www.dc4eu.eu/reports/
#OpenData #EuropeanUniversities
Student mobility validation documentation:
• Baseline process analysis
• Performance measurements
• User satisfaction surveys
• Privacy compliance validation
🔗 www.dc4eu.eu/reports/
#OpenData #EuropeanUniversities
ALUMNI ENGAGEMENT MODEL:
Post-graduation credentials:
• Career-long alliance network access
• Professional development resources (500+ institutions)
• Library access (lifelong learning)
• Networking platforms
Student investment → career-long ROI validated.
#AlumniEngagement #ErasmusPlus
Post-graduation credentials:
• Career-long alliance network access
• Professional development resources (500+ institutions)
• Library access (lifelong learning)
• Networking platforms
Student investment → career-long ROI validated.
#AlumniEngagement #ErasmusPlus
November 22, 2025 at 7:03 AM
ALUMNI ENGAGEMENT MODEL:
Post-graduation credentials:
• Career-long alliance network access
• Professional development resources (500+ institutions)
• Library access (lifelong learning)
• Networking platforms
Student investment → career-long ROI validated.
#AlumniEngagement #ErasmusPlus
Post-graduation credentials:
• Career-long alliance network access
• Professional development resources (500+ institutions)
• Library access (lifelong learning)
• Networking platforms
Student investment → career-long ROI validated.
#AlumniEngagement #ErasmusPlus
USER SATISFACTION ANALYSIS:
Quantitative assessment:
• Overall satisfaction: 7.1/10
• Problem-free experience: 58%
• Installation success: 89% first-attempt
• Interface usability: 82% usable or better
Qualitative feedback: "Transformative" mobility experience (67% responses).
#UserExperience #EUNIS
Quantitative assessment:
• Overall satisfaction: 7.1/10
• Problem-free experience: 58%
• Installation success: 89% first-attempt
• Interface usability: 82% usable or better
Qualitative feedback: "Transformative" mobility experience (67% responses).
#UserExperience #EUNIS
November 22, 2025 at 7:03 AM
USER SATISFACTION ANALYSIS:
Quantitative assessment:
• Overall satisfaction: 7.1/10
• Problem-free experience: 58%
• Installation success: 89% first-attempt
• Interface usability: 82% usable or better
Qualitative feedback: "Transformative" mobility experience (67% responses).
#UserExperience #EUNIS
Quantitative assessment:
• Overall satisfaction: 7.1/10
• Problem-free experience: 58%
• Installation success: 89% first-attempt
• Interface usability: 82% usable or better
Qualitative feedback: "Transformative" mobility experience (67% responses).
#UserExperience #EUNIS
MULTI-ALLIANCE SCALABILITY:
Students in multiple alliances:
• Accumulated distinct credentials (UNA Europa, LERU, EUA)
• Single wallet interface
• Correct credential selection (alliance-specific presentation)
• Zero technical conflicts
Multiple membership validated.
#Scalability #FOREU4All
Students in multiple alliances:
• Accumulated distinct credentials (UNA Europa, LERU, EUA)
• Single wallet interface
• Correct credential selection (alliance-specific presentation)
• Zero technical conflicts
Multiple membership validated.
#Scalability #FOREU4All
November 22, 2025 at 7:03 AM
MULTI-ALLIANCE SCALABILITY:
Students in multiple alliances:
• Accumulated distinct credentials (UNA Europa, LERU, EUA)
• Single wallet interface
• Correct credential selection (alliance-specific presentation)
• Zero technical conflicts
Multiple membership validated.
#Scalability #FOREU4All
Students in multiple alliances:
• Accumulated distinct credentials (UNA Europa, LERU, EUA)
• Single wallet interface
• Correct credential selection (alliance-specific presentation)
• Zero technical conflicts
Multiple membership validated.
#Scalability #FOREU4All
PRIVACY PRESERVATION VALIDATION:
Selective disclosure mechanisms tested (n=273):
• 66% demonstrated understanding
• 100% successful usage (regardless of technical comprehension)
• Zero privacy breaches
• No "phone home": Local verification validated
Privacy by design, not policy.
#Privacy #GDPR
Selective disclosure mechanisms tested (n=273):
• 66% demonstrated understanding
• 100% successful usage (regardless of technical comprehension)
• Zero privacy breaches
• No "phone home": Local verification validated
Privacy by design, not policy.
#Privacy #GDPR
November 22, 2025 at 7:03 AM
QUANTIFIED IMPROVEMENT:
Administrative burden reduction:
• Time: ~40 hours → <5 min (99.8% reduction)
• Access delay: 2-3 weeks → immediate
• Manual processes: Eliminated (cryptographic verification)
• Paper documentation: Zero (digital-only workflow)
#QuantifiedBenefits
Administrative burden reduction:
• Time: ~40 hours → <5 min (99.8% reduction)
• Access delay: 2-3 weeks → immediate
• Manual processes: Eliminated (cryptographic verification)
• Paper documentation: Zero (digital-only workflow)
#QuantifiedBenefits
November 22, 2025 at 7:03 AM
QUANTIFIED IMPROVEMENT:
Administrative burden reduction:
• Time: ~40 hours → <5 min (99.8% reduction)
• Access delay: 2-3 weeks → immediate
• Manual processes: Eliminated (cryptographic verification)
• Paper documentation: Zero (digital-only workflow)
#QuantifiedBenefits
Administrative burden reduction:
• Time: ~40 hours → <5 min (99.8% reduction)
• Access delay: 2-3 weeks → immediate
• Manual processes: Eliminated (cryptographic verification)
• Paper documentation: Zero (digital-only workflow)
#QuantifiedBenefits
ALLIANCEID VALIDATION:
Wallet-based process (n=273 students):
• Verification latency: Mean 2.3s (95th percentile)
• Access delay: Immediate (credential presentation)
• Service coverage: Comprehensive (automated provisioning)
• Success rate: 100% (cross-border verification)
#ValidationResults #EUNIS
Wallet-based process (n=273 students):
• Verification latency: Mean 2.3s (95th percentile)
• Access delay: Immediate (credential presentation)
• Service coverage: Comprehensive (automated provisioning)
• Success rate: 100% (cross-border verification)
#ValidationResults #EUNIS
November 22, 2025 at 7:03 AM
ALLIANCEID VALIDATION:
Wallet-based process (n=273 students):
• Verification latency: Mean 2.3s (95th percentile)
• Access delay: Immediate (credential presentation)
• Service coverage: Comprehensive (automated provisioning)
• Success rate: 100% (cross-border verification)
#ValidationResults #EUNIS
Wallet-based process (n=273 students):
• Verification latency: Mean 2.3s (95th percentile)
• Access delay: Immediate (credential presentation)
• Service coverage: Comprehensive (automated provisioning)
• Success rate: 100% (cross-border verification)
#ValidationResults #EUNIS