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Semantic web
ABSTRACT
Recently there has been a growing interest in the investigation and development of the next generation web “ the Semantic Web. While most of the current forms of web content are designed to be presented to humans, but are barely understandable by computers, the content of the Semantic Web is structured in a semantic way so that it is meaningful to computers as well as to humans. In particular, we present the opportunities that this revolution will bring to us: web-services, agent-based distributed computing, semantics-based web search engines, and semantics-based digital libraries. We also discuss the technical and cultural challenges of realizing the Semantic Web: the development of ontologies, formal semantics of Semantic Web languages, and trust and proof models
Posts: 5,362
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Semantic Web Services
Where are we?
Motivation
• Service sector vs Industrial sector vs agriculture sector
– Service sector is becoming more important than industrial sector
– Products today have a higher service component than in previous decades
• The current list of Fortune 500 companies contains more service companies and fewer manufacturers than in previous decades.
The Rise of the Service Economy
• Services have a growing share in any of the big countries
• US or Germany have a long tradition in service economy
• China or India have switched to services more into the last century
• In most countries, services represent more than 50% of the overall economy
• Service economy is growing due to various reasons:
– substituting technology for human labor in many agricultural and manufacturing process
– labor is moved to low cost locations (countries) which makes allows countries that oursource production to focus on services.
– Motivation
Why Service Science?
• Services are becoming more important than any other sector of the economy
• Economies of the world shifting from agriculture and manufacturing to services: The Rise of the Service Economy
• A new discipline dedicated to the study, design, and implementation of service systems is needed - Service Science
Services
• The word service is used in several contexts:
– Communication Service
– Ticket Reservation Service
– Transport Service
– Information Service
– Finance Service
– E-government Service
But what is a Service?
• What is a service?
Main Entry: ser•vice
Function: noun
Etymology: Middle English, from Anglo-French servise, from Latin servitium condition of a slave, body of slaves, from servus slave
1 a: the occupation or function of serving <in active service> b: employment as a servant <entered his service>
2 a: the work performed by one that serves <good service> b: help , use , benefit <glad to be of service> c: contribution to the welfare of others d: disposal for use <I'm entirely at your service>
3 a: a form followed in worship or in a religious ceremony <the burial service> b: a meeting for worship —often used in plural <held evening services>
4: the act of serving: as a: a helpful act <did him a service> b: useful labor that does not produce a tangible commodity —usually used in plural <charge for professional services> c: serve
5: a set of articles for a particular use <a silver tea service>
6 a: an administrative division (as of a government or business) <the consular service> b: one of a nation's military forces (as the army or navy)
7 a: a facility supplying some public demand <telephone service> <bus service> b: a facility providing maintenance and repair <television service>
8: the materials (as spun yarn, small lines, or canvas) used for serving a rope
9: the act of bringing a legal writ, process, or summons to notice as prescribed by law
10: the act of a male animal copulating with a female animal
11: a branch of a hospital medical staff devoted to a particular specialty <obstetrical service>