DOC PREVIEW
UTD CS 7301 - Semantic Web Policies - A Discussion of Requirements and Research Issues

This preview shows page 1-2-17-18-19-35-36 out of 36 pages.

Save
View full document
View full document
Premium Document
Do you want full access? Go Premium and unlock all 36 pages.
Access to all documents
Download any document
Ad free experience
View full document
Premium Document
Do you want full access? Go Premium and unlock all 36 pages.
Access to all documents
Download any document
Ad free experience
View full document
Premium Document
Do you want full access? Go Premium and unlock all 36 pages.
Access to all documents
Download any document
Ad free experience
View full document
Premium Document
Do you want full access? Go Premium and unlock all 36 pages.
Access to all documents
Download any document
Ad free experience
View full document
Premium Document
Do you want full access? Go Premium and unlock all 36 pages.
Access to all documents
Download any document
Ad free experience
View full document
Premium Document
Do you want full access? Go Premium and unlock all 36 pages.
Access to all documents
Download any document
Ad free experience
View full document
Premium Document
Do you want full access? Go Premium and unlock all 36 pages.
Access to all documents
Download any document
Ad free experience
Premium Document
Do you want full access? Go Premium and unlock all 36 pages.
Access to all documents
Download any document
Ad free experience

Unformatted text preview:

Semantic Web Policies - A Discussion of Requirements and Research IssuesOUTLINEOUTLINE(CONT…)WHAT ARE POLICIES?BROAD NOTION OF POLICYSlide 6Slide 7Slide 8Slide 9STRONG AND LIGHTWEIGHT EVIDENCESlide 11TRUST MANGEMENTAPPROACHES TO TRUST MANGEMENTAPPROACHES TO TRUST MANGEMENT (CONT…)Slide 15Slide 16Slide 17Slide 18AUTOMATED TRUST NEGOTIATIONSlide 20AUTOMATED TRUST NEGOTIATION(CONT..)Slide 22Slide 23COOPERATIVE POLICY ENFORCEMENTCOOPERATIVE POLICY ENFORCEMENT (CONT...)Slide 26Slide 27COOPERATIVE POLICY ENFORCEMENT (CONT…)Slide 29Slide 30Slide 31NATURAL LANGUAGE POLICIESCONCLUSIONCONCLUSION(CONT…)REFERENCESSlide 36Semantic Web Policies - A Discussion Semantic Web Policies - A Discussion ofofRequirements and Research IssuesRequirements and Research Issues SHIVARAMAN SHIVARAMAN RAGHURAMANRAGHURAMAN MUKESH MUKESH SUSILKUMARSUSILKUMAROUTLINEOUTLINE•About various policiesAbout various policies•Roles of policies in enhancing Roles of policies in enhancing security, privacy and usability of security, privacy and usability of Distributed servicesDistributed services•Discusses about important Discusses about important requirements and open research requirements and open research issues.issues.OUTLINE(CONT…)OUTLINE(CONT…)•Discussion is based on the following Discussion is based on the following strategic goals and lines of researchstrategic goals and lines of research-Broad notion of policy.-Broad notion of policy.-Strong and Lightweight evidence.-Strong and Lightweight evidence.-Automated Trust Negotiation.-Automated Trust Negotiation.-Cooperative policy enforcement.-Cooperative policy enforcement.•How to integrate policies into trust How to integrate policies into trust management framework.management framework.WHAT ARE POLICIES?WHAT ARE POLICIES?•Policies are pervasive in web Policies are pervasive in web applications.applications.•Policies specify the behavior of the Policies specify the behavior of the systemsystem•They play crucial role in the area of They play crucial role in the area of security, privacy and business rules.security, privacy and business rules.•They determine the success of the web They determine the success of the web servicesservicesBROAD NOTION OF POLICYBROAD NOTION OF POLICY•All different policies should be All different policies should be integrated into a single framework.integrated into a single framework.•These policies include not only access These policies include not only access control but also privacy policies, control but also privacy policies, business rules, quality of service and business rules, quality of service and among others.among others.-Access control policies protects any -Access control policies protects any system open to the internet.system open to the internet.BROAD NOTION OF POLICYBROAD NOTION OF POLICY-Privacy policy protects the user while -Privacy policy protects the user while they are browsing web and accessing they are browsing web and accessing web services.web services.-Business policy specifies the condition -Business policy specifies the condition that apply to specific customer of web that apply to specific customer of web services.services.-Other policies specify constraints -Other policies specify constraints related to quality of service.related to quality of service.BROAD NOTION OF POLICYBROAD NOTION OF POLICY•All these policies makes decisions based All these policies makes decisions based on the information of the peer/user on the information of the peer/user involved in the transaction.involved in the transaction.-For example, age, nationality, customer profile, identity, and reputation may all be considered both in access control decisions, and in determining which discounts are applicable.BROAD NOTION OF POLICYBROAD NOTION OF POLICY•These kinds of policies needs to be These kinds of policies needs to be integrated to provide integrated to provide –a common infrastructure that can be used for a common infrastructure that can be used for decision making and interoperability.decision making and interoperability.–Policies can be harmonized and synchronized.Policies can be harmonized and synchronized.•There are also policies which requires the There are also policies which requires the events to be logged.events to be logged.•These policies are called Provisional These policies are called Provisional policies.policies.•Policy specify actions to be executed along Policy specify actions to be executed along with the decision process. with the decision process.BROAD NOTION OF POLICYBROAD NOTION OF POLICY•Policies in these context acts as both Policies in these context acts as both decision support system and as declarative decision support system and as declarative behavior systems.behavior systems.•An effective approach to policy specification An effective approach to policy specification could give common user a better control on could give common user a better control on the behavior of their own system.the behavior of their own system.•Achievement of this goal depends on Achievement of this goal depends on policies ability to interoperate with rest of policies ability to interoperate with rest of the system.the system.STRONG AND LIGHTWEIGHT STRONG AND LIGHTWEIGHT EVIDENCEEVIDENCE•Policies make decisions based on properties of the peers interacting with the system.•These properties may be strongly certified by cryptographic techniques, or may be reliable to some intermediate degree with lightweight evidence gathering and validation. •A flexible policy framework should try to merge these two forms of evidence to meet the efficiency and usability requirements of web applications.STRONG AND LIGHTWEIGHT STRONG AND LIGHTWEIGHT EVIDENCEEVIDENCE•Trust negotiation, reputation models, business rules, and action specification languages have to be integrated into a single framework.•Automated trust negotiation plays an important role in trust management.TRUST MANGEMENTTRUST MANGEMENT•The Semantic Web is a large, uncensored system to which anyone may contribute.•This raises the question of how much credence to give each source. We cannot expect each user to know the trustworthiness of each source.•This is where Trust Management plays an important role in establishing the trustworthiness of each source.APPROACHES TO TRUST APPROACHES TO TRUST MANGEMENTMANGEMENT•Two major approaches to managing trust Two major approaches to managing trust


View Full Document

UTD CS 7301 - Semantic Web Policies - A Discussion of Requirements and Research Issues

Documents in this Course
Load more
Download Semantic Web Policies - A Discussion of Requirements and Research Issues
Our administrator received your request to download this document. We will send you the file to your email shortly.
Loading Unlocking...
Login

Join to view Semantic Web Policies - A Discussion of Requirements and Research Issues and access 3M+ class-specific study document.

or
We will never post anything without your permission.
Don't have an account?
Sign Up

Join to view Semantic Web Policies - A Discussion of Requirements and Research Issues 2 2 and access 3M+ class-specific study document.

or

By creating an account you agree to our Privacy Policy and Terms Of Use

Already a member?