SlideShare a Scribd company logo
1 of 19
Social Knowledge and the Web Reuben Binns Web Science DTC ECS, University of Southampton [email_address] Twitter: @RDBinns
[object Object],[object Object]
What is Social Knowledge? ,[object Object],[object Object],[object Object]
Examples ,[object Object],[object Object],[object Object]
Reductive accounts ,[object Object],[object Object],[object Object]
Problems with reduction ,[object Object],Committed action? Contractual obligation? Liable? Judge 1 Yes Yes Yes Judge 2 Yes No No Judge 3 No Yes No Majority Decision Yes Yes No?
Problems with reduction ,[object Object],[object Object],[object Object],[object Object]
Towards a non-reductive account ,[object Object],[object Object],[object Object]
Storage ,[object Object],[object Object],[object Object],[object Object]
Storage ,[object Object],[object Object]
Social Knowledge on the Web ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
1. Global Social Knowledge ,[object Object],[object Object],[object Object]
Visibility and input to action and deliberation ,[object Object],[object Object],[object Object]
2. Offloading IK, relying on SK ,[object Object],[object Object],[object Object],[object Object]
[object Object],[object Object],[object Object]
 
HEC and individual knowledge ,[object Object],[object Object],[object Object]
3. Co-ordination of social action ,[object Object],[object Object],[object Object]
Social Knowledge on the Semantic Web ,[object Object],[object Object],[object Object],[object Object],[object Object]

More Related Content

Viewers also liked

Crisis Communications
Crisis CommunicationsCrisis Communications
Crisis CommunicationsMWWPR
 
Go Mobile or Go Home
Go Mobile or Go HomeGo Mobile or Go Home
Go Mobile or Go HomeMWWPR
 
Fiche candidat concours siat final
Fiche candidat concours siat finalFiche candidat concours siat final
Fiche candidat concours siat finalmarouen chikhaoui
 
Restructuring Capabilities
Restructuring CapabilitiesRestructuring Capabilities
Restructuring CapabilitiesMWWPR
 
Open notice w3 c presentation-1112
Open notice   w3 c presentation-1112Open notice   w3 c presentation-1112
Open notice w3 c presentation-1112Reuben Binns
 
Youth and Politics
Youth and PoliticsYouth and Politics
Youth and PoliticsMWWPR
 
MWW Annual Report
MWW Annual ReportMWW Annual Report
MWW Annual ReportMWWPR
 
HerVoice…In the Media
HerVoice…In the MediaHerVoice…In the Media
HerVoice…In the MediaMWWPR
 
Social Media and Financial Communications
Social Media and Financial CommunicationsSocial Media and Financial Communications
Social Media and Financial CommunicationsMWWPR
 
Praktik 9
Praktik 9Praktik 9
Praktik 9bjarnec
 
Tdr emballage et charte smsa zelfen
Tdr emballage et charte smsa zelfenTdr emballage et charte smsa zelfen
Tdr emballage et charte smsa zelfenmarouen chikhaoui
 
Facebook Timeline Launch for Brand Pages
Facebook Timeline Launch for Brand PagesFacebook Timeline Launch for Brand Pages
Facebook Timeline Launch for Brand PagesMWWPR
 
miniMAL & other low-res media facades
miniMAL & other low-res media facadesminiMAL & other low-res media facades
miniMAL & other low-res media facadesiMALorg
 
Detecting biosignals with the Emotiv EPOC headset : a review
Detecting biosignals with the Emotiv EPOC headset : a reviewDetecting biosignals with the Emotiv EPOC headset : a review
Detecting biosignals with the Emotiv EPOC headset : a reviewiMALorg
 
M&A Communications
M&A CommunicationsM&A Communications
M&A CommunicationsMWWPR
 
Leveraging Conductive Inkjet Technology to Build a Scalable and Versatile Sur...
Leveraging Conductive Inkjet Technology to Build a Scalable and Versatile Sur...Leveraging Conductive Inkjet Technology to Build a Scalable and Versatile Sur...
Leveraging Conductive Inkjet Technology to Build a Scalable and Versatile Sur...nwgong
 
UK 2015 Travel Report
UK 2015 Travel ReportUK 2015 Travel Report
UK 2015 Travel ReportMWWPR
 

Viewers also liked (17)

Crisis Communications
Crisis CommunicationsCrisis Communications
Crisis Communications
 
Go Mobile or Go Home
Go Mobile or Go HomeGo Mobile or Go Home
Go Mobile or Go Home
 
Fiche candidat concours siat final
Fiche candidat concours siat finalFiche candidat concours siat final
Fiche candidat concours siat final
 
Restructuring Capabilities
Restructuring CapabilitiesRestructuring Capabilities
Restructuring Capabilities
 
Open notice w3 c presentation-1112
Open notice   w3 c presentation-1112Open notice   w3 c presentation-1112
Open notice w3 c presentation-1112
 
Youth and Politics
Youth and PoliticsYouth and Politics
Youth and Politics
 
MWW Annual Report
MWW Annual ReportMWW Annual Report
MWW Annual Report
 
HerVoice…In the Media
HerVoice…In the MediaHerVoice…In the Media
HerVoice…In the Media
 
Social Media and Financial Communications
Social Media and Financial CommunicationsSocial Media and Financial Communications
Social Media and Financial Communications
 
Praktik 9
Praktik 9Praktik 9
Praktik 9
 
Tdr emballage et charte smsa zelfen
Tdr emballage et charte smsa zelfenTdr emballage et charte smsa zelfen
Tdr emballage et charte smsa zelfen
 
Facebook Timeline Launch for Brand Pages
Facebook Timeline Launch for Brand PagesFacebook Timeline Launch for Brand Pages
Facebook Timeline Launch for Brand Pages
 
miniMAL & other low-res media facades
miniMAL & other low-res media facadesminiMAL & other low-res media facades
miniMAL & other low-res media facades
 
Detecting biosignals with the Emotiv EPOC headset : a review
Detecting biosignals with the Emotiv EPOC headset : a reviewDetecting biosignals with the Emotiv EPOC headset : a review
Detecting biosignals with the Emotiv EPOC headset : a review
 
M&A Communications
M&A CommunicationsM&A Communications
M&A Communications
 
Leveraging Conductive Inkjet Technology to Build a Scalable and Versatile Sur...
Leveraging Conductive Inkjet Technology to Build a Scalable and Versatile Sur...Leveraging Conductive Inkjet Technology to Build a Scalable and Versatile Sur...
Leveraging Conductive Inkjet Technology to Build a Scalable and Versatile Sur...
 
UK 2015 Travel Report
UK 2015 Travel ReportUK 2015 Travel Report
UK 2015 Travel Report
 

Similar to Philoweb presentation

Reuben Binns: Social Knowledge and the Web
Reuben Binns: Social Knowledge and the WebReuben Binns: Social Knowledge and the Web
Reuben Binns: Social Knowledge and the WebPhiloWeb
 
Cuadro comparativo chat connectivism
Cuadro comparativo chat connectivismCuadro comparativo chat connectivism
Cuadro comparativo chat connectivismSandra Delgado
 
The implications of social media
The implications of social mediaThe implications of social media
The implications of social mediagina876
 
Chapter7 huizing
Chapter7 huizingChapter7 huizing
Chapter7 huizingokeee
 
Pichutz (Singularity Pyramid) concept April 28
Pichutz (Singularity Pyramid) concept April 28Pichutz (Singularity Pyramid) concept April 28
Pichutz (Singularity Pyramid) concept April 28Vo Viet Anh
 
No Yin Without Yang: Community Needs Civic Intelligence to be Complete
No Yin Without Yang: Community Needs Civic Intelligence to be CompleteNo Yin Without Yang: Community Needs Civic Intelligence to be Complete
No Yin Without Yang: Community Needs Civic Intelligence to be CompleteDouglas Schuler
 
What Type of Digital Transformation? Reinventing Social Thought and Action...
What Type of Digital Transformation?  Reinventing  Social Thought  and Action...What Type of Digital Transformation?  Reinventing  Social Thought  and Action...
What Type of Digital Transformation? Reinventing Social Thought and Action...Douglas Schuler
 
21st Century Research Profiles: Using social media to benefit your research h...
21st Century Research Profiles: Using social media to benefit your research h...21st Century Research Profiles: Using social media to benefit your research h...
21st Century Research Profiles: Using social media to benefit your research h...Emma Gillaspy
 
Mind in a designed world
Mind in a designed world Mind in a designed world
Mind in a designed world Karlos Svoboda
 
Week 9 presentation
Week 9 presentationWeek 9 presentation
Week 9 presentationflorence825
 
Week 2 - AssignmentAspects of Social Understanding[WLOs
Week 2 - AssignmentAspects of Social Understanding[WLOsWeek 2 - AssignmentAspects of Social Understanding[WLOs
Week 2 - AssignmentAspects of Social Understanding[WLOsnicolleszkyj
 
Innovation+creative thinking hamadeh
Innovation+creative thinking hamadehInnovation+creative thinking hamadeh
Innovation+creative thinking hamadehslide2success
 
Knowledge management
Knowledge managementKnowledge management
Knowledge managementsksbatish
 

Similar to Philoweb presentation (20)

Reuben Binns: Social Knowledge and the Web
Reuben Binns: Social Knowledge and the WebReuben Binns: Social Knowledge and the Web
Reuben Binns: Social Knowledge and the Web
 
Plenk2010
Plenk2010Plenk2010
Plenk2010
 
Cuadro comparativo chat connectivism
Cuadro comparativo chat connectivismCuadro comparativo chat connectivism
Cuadro comparativo chat connectivism
 
The implications of social media
The implications of social mediaThe implications of social media
The implications of social media
 
Chapter7 huizing
Chapter7 huizingChapter7 huizing
Chapter7 huizing
 
CSCL 2009 Paper
CSCL 2009 PaperCSCL 2009 Paper
CSCL 2009 Paper
 
Pichutz (Singularity Pyramid) concept April 28
Pichutz (Singularity Pyramid) concept April 28Pichutz (Singularity Pyramid) concept April 28
Pichutz (Singularity Pyramid) concept April 28
 
No Yin Without Yang: Community Needs Civic Intelligence to be Complete
No Yin Without Yang: Community Needs Civic Intelligence to be CompleteNo Yin Without Yang: Community Needs Civic Intelligence to be Complete
No Yin Without Yang: Community Needs Civic Intelligence to be Complete
 
What Type of Digital Transformation? Reinventing Social Thought and Action...
What Type of Digital Transformation?  Reinventing  Social Thought  and Action...What Type of Digital Transformation?  Reinventing  Social Thought  and Action...
What Type of Digital Transformation? Reinventing Social Thought and Action...
 
Jerome s. bruner
Jerome s. brunerJerome s. bruner
Jerome s. bruner
 
Jerome s. bruner
Jerome s. brunerJerome s. bruner
Jerome s. bruner
 
Social Approaches To Learning
Social Approaches To LearningSocial Approaches To Learning
Social Approaches To Learning
 
21st Century Research Profiles: Using social media to benefit your research h...
21st Century Research Profiles: Using social media to benefit your research h...21st Century Research Profiles: Using social media to benefit your research h...
21st Century Research Profiles: Using social media to benefit your research h...
 
Mind in a designed world
Mind in a designed world Mind in a designed world
Mind in a designed world
 
Week 9 presentation
Week 9 presentationWeek 9 presentation
Week 9 presentation
 
Week 2 - AssignmentAspects of Social Understanding[WLOs
Week 2 - AssignmentAspects of Social Understanding[WLOsWeek 2 - AssignmentAspects of Social Understanding[WLOs
Week 2 - AssignmentAspects of Social Understanding[WLOs
 
Lit Review
Lit ReviewLit Review
Lit Review
 
Innovation+creative thinking hamadeh
Innovation+creative thinking hamadehInnovation+creative thinking hamadeh
Innovation+creative thinking hamadeh
 
Artificial Intelligence
Artificial IntelligenceArtificial Intelligence
Artificial Intelligence
 
Knowledge management
Knowledge managementKnowledge management
Knowledge management
 

Recently uploaded

Difference Between Search & Browse Methods in Odoo 17
Difference Between Search & Browse Methods in Odoo 17Difference Between Search & Browse Methods in Odoo 17
Difference Between Search & Browse Methods in Odoo 17Celine George
 
ENGLISH6-Q4-W3.pptxqurter our high choom
ENGLISH6-Q4-W3.pptxqurter our high choomENGLISH6-Q4-W3.pptxqurter our high choom
ENGLISH6-Q4-W3.pptxqurter our high choomnelietumpap1
 
How to Add Barcode on PDF Report in Odoo 17
How to Add Barcode on PDF Report in Odoo 17How to Add Barcode on PDF Report in Odoo 17
How to Add Barcode on PDF Report in Odoo 17Celine George
 
Grade 9 Q4-MELC1-Active and Passive Voice.pptx
Grade 9 Q4-MELC1-Active and Passive Voice.pptxGrade 9 Q4-MELC1-Active and Passive Voice.pptx
Grade 9 Q4-MELC1-Active and Passive Voice.pptxChelloAnnAsuncion2
 
Influencing policy (training slides from Fast Track Impact)
Influencing policy (training slides from Fast Track Impact)Influencing policy (training slides from Fast Track Impact)
Influencing policy (training slides from Fast Track Impact)Mark Reed
 
Choosing the Right CBSE School A Comprehensive Guide for Parents
Choosing the Right CBSE School A Comprehensive Guide for ParentsChoosing the Right CBSE School A Comprehensive Guide for Parents
Choosing the Right CBSE School A Comprehensive Guide for Parentsnavabharathschool99
 
AMERICAN LANGUAGE HUB_Level2_Student'sBook_Answerkey.pdf
AMERICAN LANGUAGE HUB_Level2_Student'sBook_Answerkey.pdfAMERICAN LANGUAGE HUB_Level2_Student'sBook_Answerkey.pdf
AMERICAN LANGUAGE HUB_Level2_Student'sBook_Answerkey.pdfphamnguyenenglishnb
 
What is Model Inheritance in Odoo 17 ERP
What is Model Inheritance in Odoo 17 ERPWhat is Model Inheritance in Odoo 17 ERP
What is Model Inheritance in Odoo 17 ERPCeline George
 
Roles & Responsibilities in Pharmacovigilance
Roles & Responsibilities in PharmacovigilanceRoles & Responsibilities in Pharmacovigilance
Roles & Responsibilities in PharmacovigilanceSamikshaHamane
 
Karra SKD Conference Presentation Revised.pptx
Karra SKD Conference Presentation Revised.pptxKarra SKD Conference Presentation Revised.pptx
Karra SKD Conference Presentation Revised.pptxAshokKarra1
 
Like-prefer-love -hate+verb+ing & silent letters & citizenship text.pdf
Like-prefer-love -hate+verb+ing & silent letters & citizenship text.pdfLike-prefer-love -hate+verb+ing & silent letters & citizenship text.pdf
Like-prefer-love -hate+verb+ing & silent letters & citizenship text.pdfMr Bounab Samir
 
Visit to a blind student's school🧑‍🦯🧑‍🦯(community medicine)
Visit to a blind student's school🧑‍🦯🧑‍🦯(community medicine)Visit to a blind student's school🧑‍🦯🧑‍🦯(community medicine)
Visit to a blind student's school🧑‍🦯🧑‍🦯(community medicine)lakshayb543
 
THEORIES OF ORGANIZATION-PUBLIC ADMINISTRATION
THEORIES OF ORGANIZATION-PUBLIC ADMINISTRATIONTHEORIES OF ORGANIZATION-PUBLIC ADMINISTRATION
THEORIES OF ORGANIZATION-PUBLIC ADMINISTRATIONHumphrey A Beña
 
Gas measurement O2,Co2,& ph) 04/2024.pptx
Gas measurement O2,Co2,& ph) 04/2024.pptxGas measurement O2,Co2,& ph) 04/2024.pptx
Gas measurement O2,Co2,& ph) 04/2024.pptxDr.Ibrahim Hassaan
 
Proudly South Africa powerpoint Thorisha.pptx
Proudly South Africa powerpoint Thorisha.pptxProudly South Africa powerpoint Thorisha.pptx
Proudly South Africa powerpoint Thorisha.pptxthorishapillay1
 
call girls in Kamla Market (DELHI) 🔝 >༒9953330565🔝 genuine Escort Service 🔝✔️✔️
call girls in Kamla Market (DELHI) 🔝 >༒9953330565🔝 genuine Escort Service 🔝✔️✔️call girls in Kamla Market (DELHI) 🔝 >༒9953330565🔝 genuine Escort Service 🔝✔️✔️
call girls in Kamla Market (DELHI) 🔝 >༒9953330565🔝 genuine Escort Service 🔝✔️✔️9953056974 Low Rate Call Girls In Saket, Delhi NCR
 
HỌC TỐT TIẾNG ANH 11 THEO CHƯƠNG TRÌNH GLOBAL SUCCESS ĐÁP ÁN CHI TIẾT - CẢ NĂ...
HỌC TỐT TIẾNG ANH 11 THEO CHƯƠNG TRÌNH GLOBAL SUCCESS ĐÁP ÁN CHI TIẾT - CẢ NĂ...HỌC TỐT TIẾNG ANH 11 THEO CHƯƠNG TRÌNH GLOBAL SUCCESS ĐÁP ÁN CHI TIẾT - CẢ NĂ...
HỌC TỐT TIẾNG ANH 11 THEO CHƯƠNG TRÌNH GLOBAL SUCCESS ĐÁP ÁN CHI TIẾT - CẢ NĂ...Nguyen Thanh Tu Collection
 

Recently uploaded (20)

Difference Between Search & Browse Methods in Odoo 17
Difference Between Search & Browse Methods in Odoo 17Difference Between Search & Browse Methods in Odoo 17
Difference Between Search & Browse Methods in Odoo 17
 
ENGLISH6-Q4-W3.pptxqurter our high choom
ENGLISH6-Q4-W3.pptxqurter our high choomENGLISH6-Q4-W3.pptxqurter our high choom
ENGLISH6-Q4-W3.pptxqurter our high choom
 
How to Add Barcode on PDF Report in Odoo 17
How to Add Barcode on PDF Report in Odoo 17How to Add Barcode on PDF Report in Odoo 17
How to Add Barcode on PDF Report in Odoo 17
 
Grade 9 Q4-MELC1-Active and Passive Voice.pptx
Grade 9 Q4-MELC1-Active and Passive Voice.pptxGrade 9 Q4-MELC1-Active and Passive Voice.pptx
Grade 9 Q4-MELC1-Active and Passive Voice.pptx
 
Influencing policy (training slides from Fast Track Impact)
Influencing policy (training slides from Fast Track Impact)Influencing policy (training slides from Fast Track Impact)
Influencing policy (training slides from Fast Track Impact)
 
Raw materials used in Herbal Cosmetics.pptx
Raw materials used in Herbal Cosmetics.pptxRaw materials used in Herbal Cosmetics.pptx
Raw materials used in Herbal Cosmetics.pptx
 
Choosing the Right CBSE School A Comprehensive Guide for Parents
Choosing the Right CBSE School A Comprehensive Guide for ParentsChoosing the Right CBSE School A Comprehensive Guide for Parents
Choosing the Right CBSE School A Comprehensive Guide for Parents
 
AMERICAN LANGUAGE HUB_Level2_Student'sBook_Answerkey.pdf
AMERICAN LANGUAGE HUB_Level2_Student'sBook_Answerkey.pdfAMERICAN LANGUAGE HUB_Level2_Student'sBook_Answerkey.pdf
AMERICAN LANGUAGE HUB_Level2_Student'sBook_Answerkey.pdf
 
What is Model Inheritance in Odoo 17 ERP
What is Model Inheritance in Odoo 17 ERPWhat is Model Inheritance in Odoo 17 ERP
What is Model Inheritance in Odoo 17 ERP
 
Roles & Responsibilities in Pharmacovigilance
Roles & Responsibilities in PharmacovigilanceRoles & Responsibilities in Pharmacovigilance
Roles & Responsibilities in Pharmacovigilance
 
Karra SKD Conference Presentation Revised.pptx
Karra SKD Conference Presentation Revised.pptxKarra SKD Conference Presentation Revised.pptx
Karra SKD Conference Presentation Revised.pptx
 
OS-operating systems- ch04 (Threads) ...
OS-operating systems- ch04 (Threads) ...OS-operating systems- ch04 (Threads) ...
OS-operating systems- ch04 (Threads) ...
 
Like-prefer-love -hate+verb+ing & silent letters & citizenship text.pdf
Like-prefer-love -hate+verb+ing & silent letters & citizenship text.pdfLike-prefer-love -hate+verb+ing & silent letters & citizenship text.pdf
Like-prefer-love -hate+verb+ing & silent letters & citizenship text.pdf
 
TataKelola dan KamSiber Kecerdasan Buatan v022.pdf
TataKelola dan KamSiber Kecerdasan Buatan v022.pdfTataKelola dan KamSiber Kecerdasan Buatan v022.pdf
TataKelola dan KamSiber Kecerdasan Buatan v022.pdf
 
Visit to a blind student's school🧑‍🦯🧑‍🦯(community medicine)
Visit to a blind student's school🧑‍🦯🧑‍🦯(community medicine)Visit to a blind student's school🧑‍🦯🧑‍🦯(community medicine)
Visit to a blind student's school🧑‍🦯🧑‍🦯(community medicine)
 
THEORIES OF ORGANIZATION-PUBLIC ADMINISTRATION
THEORIES OF ORGANIZATION-PUBLIC ADMINISTRATIONTHEORIES OF ORGANIZATION-PUBLIC ADMINISTRATION
THEORIES OF ORGANIZATION-PUBLIC ADMINISTRATION
 
Gas measurement O2,Co2,& ph) 04/2024.pptx
Gas measurement O2,Co2,& ph) 04/2024.pptxGas measurement O2,Co2,& ph) 04/2024.pptx
Gas measurement O2,Co2,& ph) 04/2024.pptx
 
Proudly South Africa powerpoint Thorisha.pptx
Proudly South Africa powerpoint Thorisha.pptxProudly South Africa powerpoint Thorisha.pptx
Proudly South Africa powerpoint Thorisha.pptx
 
call girls in Kamla Market (DELHI) 🔝 >༒9953330565🔝 genuine Escort Service 🔝✔️✔️
call girls in Kamla Market (DELHI) 🔝 >༒9953330565🔝 genuine Escort Service 🔝✔️✔️call girls in Kamla Market (DELHI) 🔝 >༒9953330565🔝 genuine Escort Service 🔝✔️✔️
call girls in Kamla Market (DELHI) 🔝 >༒9953330565🔝 genuine Escort Service 🔝✔️✔️
 
HỌC TỐT TIẾNG ANH 11 THEO CHƯƠNG TRÌNH GLOBAL SUCCESS ĐÁP ÁN CHI TIẾT - CẢ NĂ...
HỌC TỐT TIẾNG ANH 11 THEO CHƯƠNG TRÌNH GLOBAL SUCCESS ĐÁP ÁN CHI TIẾT - CẢ NĂ...HỌC TỐT TIẾNG ANH 11 THEO CHƯƠNG TRÌNH GLOBAL SUCCESS ĐÁP ÁN CHI TIẾT - CẢ NĂ...
HỌC TỐT TIẾNG ANH 11 THEO CHƯƠNG TRÌNH GLOBAL SUCCESS ĐÁP ÁN CHI TIẾT - CẢ NĂ...
 

Philoweb presentation

  • 1. Social Knowledge and the Web Reuben Binns Web Science DTC ECS, University of Southampton [email_address] Twitter: @RDBinns
  • 2.
  • 3.
  • 4.
  • 5.
  • 6.
  • 7.
  • 8.
  • 9.
  • 10.
  • 11.
  • 12.
  • 13.
  • 14.
  • 15.
  • 16.  
  • 17.
  • 18.
  • 19.

Editor's Notes

  1. Epistemologists have traditionally been concerned with elucidating the conditions under which an agent knows some proposition, focusing on the state of a single individual, and her relation to the world. Whatever its merits, this approach to a theory of knowledge neglects the distinct phenomenon of social knowledge; knowledge that is held collectively by groups. However, we are fast approaching a world in which the sum of human knowledge is primarily stored on and accessed via the web, rather than existing in the minds of individuals. Our theory of knowledge must therefore be developed accordingly.
  2. So let's start with some examples to help us distinguish between individual and social knowledge. The first is clearly focused on an individual. This is the paradigm for traditional epistemology.
  3. Quinton's summative account is clearly appropriate when applied to certain claims concerning groups. Consider a crowd of pedestrians walking through a street as it rains. If we claim that 'the crowd believes it is raining', this claim is best interpreted as 'all or most of the individual members of the crowd believe it is raining'.
  4. Another problem with the summative account can be seen in what Philip Pettit calls a discursive dilemma. Imagine a court of 3 judges must decide whether a defendant is guilty. To be found guilty the defendant must have both committed the action, and be contractually obliged not to do so.