This Bachelor-Thesis deals with the synchronisation of social network services. This type of internet application enjoys great popularity which results in new challenges for identity and relation management. On one side the user has to manage different identities and on the other side a friendslist per social network service. From this effort arose to make data portable and reusable for example in order to avoid re-declaring friends to every site. To accomplish this goal numerous projects and technologies have been developed, which already provide partial solutions for this problem. The basic conceptual question however how to deal with the problem generally is still open. Moreover some of the techniques are only suitable for special use cases or else not ready für a professional use. In this thesis some of the existing standards shall be used to tie them together to one total system. This system consists out of a central identity provider, which functions as a central storage for the users contact data. By utilising interfaces this contact data can be exchanged with the social network service and by that improves the relation management for the users.
Contents
1 Introduction
2 Social network services
2.1 Definition
2.2 Present SNS usage
2.3 Relation and identity management in SNS
2.4 Present data portability and its problems
2.4.1 Political situation
2.4.2 Technical situation
3 Current data portability solutions
3.1 Microformats
3.2 XRDS-simple
3.3 OAuth
3.4 RDF
3.5 OpenID plus Attribute Exchange Extension
4 Concept for a SNS metadirectory
4.1 Goals
4.2 Concept description
5 Development of the prototype
5.1 Analysis
5.1.1 Functional and data description
5.1.2 System architecture
5.1.3 Interface description
5.1.4 Usage scenario
5.1.5 Data model
5.2 Design
5.2.1 Data design
5.2.2 Architectural and component-level design
5.2.3 Interface description
5.3 Implementation
5.3.1 Setting up the OpenID server and the SNS
5.3.2 Attribute Exchange - Fetch Message
5.3.3 Processing the FOAF data
5.3.4 Attribute Exchange Store Message
5.4 Appraisal of results
6 Summary and Outlook
Research Objectives and Key Topics
This thesis addresses the challenges of fragmented identity and relation management in social network services. The primary goal is to develop a central identity provider system using existing standards that enables data portability and cross-platform contact synchronization, while preserving the user's ability to maintain separate social circles.
- Analysis of current data portability limitations in social networks.
- Evaluation of existing standards including OpenID, RDF/FOAF, and Microformats.
- Design of a centralized metadirectory architecture for contact synchronization.
- Implementation of a prototype using the Ruby on Rails framework.
- Discussion of privacy and technical hurdles in establishing portable social web environments.
Excerpt from the Thesis
2.4.1 Political situation
As already broached portable data is required to have a greater benefit of using SNSs. First of all however there are political issues affecting the access to the data. Besides small non-commercial SNSs the most important ones are companies who want to maximize their profits, so that they may have reasons to resist data portability. A crucial factor for such companies is the amount of users they have. Through that the platform increases in value, because the service is more attractive to users, as they find much more contacts and network effects get fortified. More users also means more traffic and this leads to better advertisement revenues (Olsen, 2006). The information the SNSs have about the users even allow for target-group-specific advertisement. The data is part of the business model. Big SNSs with millions of users and all their individual data hold out a huge treasure of personal data (Grob and Vossen, 2007) and it is even more valuable as it also includes the connections of people among each other. So these companies may refuse to open up their platform, because they are interested in a proprietary access to the monetisable data especially when the service is already very popular and has reached the critical mass of users.
Summary of Chapters
1 Introduction: Introduces the rise of social network services and the resulting fragmentation of user information and identities.
2 Social network services: Defines social network services, examines their usage trends, and analyzes the challenges of identity and relation management.
3 Current data portability solutions: Explores existing technologies like Microformats, XRDS-simple, OAuth, RDF, and OpenID to facilitate data exchange.
4 Concept for a SNS metadirectory: Outlines the architectural goal of creating a central identity provider to synchronize contacts across platforms.
5 Development of the prototype: Details the technical analysis, design, implementation, and appraisal of a prototype using Ruby on Rails, FOAF, and OpenID.
6 Summary and Outlook: Concludes the thesis by evaluating the prototype's success and discussing future improvements for data portability.
Keywords
Data portability, social network services, SNS, identity management, relation management, OpenID, FOAF, RDF, contact synchronization, Ruby on Rails, metadirectory, web 2.0, social graph, user-centric identity, attribute exchange.
Frequently Asked Questions
What is the core issue addressed in this work?
The work addresses the problem of user data being fragmented across multiple social network services, which makes managing relationships and identities across platforms difficult.
What are the primary themes discussed?
The primary themes include data portability, user identity management in social networks, and the technical implementation of interoperable standards for contact synchronization.
What is the primary research goal?
The goal is to design and implement a central identity provider system that allows users to synchronize their contacts across different social network services while maintaining control over their data.
Which scientific methods or tools are utilized?
The study uses an analytical approach to review current standards and a practical implementation method by developing a prototype using the Ruby on Rails framework and RDF/FOAF standards.
What is covered in the main body of the work?
The main body covers the analysis of current social network limitations, an evaluation of portability standards, the conceptual design of a metadirectory, and the step-by-step implementation of a working software prototype.
How would you describe the project using key terms?
The project is best described by keywords such as data portability, social network synchronization, OpenID, FOAF, and centralized identity management.
Why are proprietary "walled gardens" problematic according to the author?
The author argues that they hinder data reuse, create redundant storage of user information, and lock users into specific platforms due to the high social cost of rebuilding contacts.
How does the proposed prototype handle data privacy?
The prototype allows the user to control the submission of their contact data via the identity provider, though the author notes that significant privacy and trust challenges remain regarding the identity provider's access to user activity.
- Quote paper
- Sören Weber (Author), 2008, Data portability and relation management in social web applications, Munich, GRIN Verlag, https://www.grin.com/document/118916
