An Overview on Latest eTechnologies

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An Overview on Latest e-Technologies

• COMP3150/7700 E-technology Architectures, Tools
  and Applications
• (Semester 1, 2009/10)

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Learning Outcomes

• At the end of this lecture, you should be able to
• Describe the relationships between different Web
  related technologies
• Describe what Web 1.0 and 2.0 mean and explain
  the differences between them
• Explain the importance of aggregation mechanism
  in the context of Web 2.0 and business
  applications
• Describe key e-technologies and tools supporting
  the development of Web 2.0 as well as more
  interoperable and manageable web-based business
  applications.
• Describe some newly emerging computing paradigms
  and explain their emphases

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Outline

• e-Technologies
• Architectures
• Tools
• Applications
• Computing Paradigms

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e-Technologies

• e-Technologies?
• Internet, Web, security and privacy, payment,
  grid computing, enterprise programming,
  e-commerce, and more are coming
• Our focus
• the development of Web-based system.
• How well do understand those buzzwords?
• HTML/XHTML/CSS/XML/XMLSchema/XSLT/XPATH/
• DOM/RDF/OWL/SWRL/WSDL/SOAP/ REST/UDDI/
• Google API/BPEL/PHP/JSP/Javascript/AJAX/Web 1.0/
• Web 2.0/

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Web 1.0 -gt Web 2.0(Sourcehttp//interlab.pnl.gov
/docs/web20_interLab05.pdf)

• Definition still evolving An ATTITUDE
• Shift focus to info user (decision support), not
  creator (dissemination).
• Information with properties and relationships
• How information is categorized and manipulated
• Information broken into microcontent units for
  distribution
• Information no longer limited by (X)HTML
• Examples RSS, Web blog, Wikipedia, Social
  Networks,

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RSS Really Simple Syndication
(1/2)Information Aggregation
YOU
New feed content pulled back into reader
Convert your content (e.g., news) into XML file
following RSS syntax and publish the URL of this
RSS feed. People with RSS reader and know the
URL will be able to have your news pushed to
their readers regularly. One can aggregate RSS
from multiple feeds via say XSLT for contents
(e.g., news, media) collection.
RSS Reader
http//
Reader pings to check if feed (page/site) has
been updated)
Titles Dates Links Authors Content
http//www.rss-specifications.com/
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Web Blogging Views/Opinions Aggregation
No longer comprehensive personal web
sites. Collaborative micro-opinions being
collected on voluntary basis. Making use of the
word-of-mouth (networking) effect.
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Wikipedia Knowledge Aggregation
A Collaborative Dictionary being edited in real
time by anyone. Everyone becomes an author,
an editor, and a publisher. The content
evolution is also driven by the participants
discussion and editing. All the editions are
archived for version comparison. Do you trust
it?
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Social Networks/Web People Aggregation

• E.g., 43things.com
• people group by their wishes.
• - It also tells you the information
• that people do this also do that.
• Key Features of Social Web
• - Express develop identity
• - Relationships
• - Trust
• - User-driven content

Other Socialware MySpace, Facebook
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Web 1.0 vs. Web 2.0
See what kind of services Flickr can provide to
their users http//flickr.com/ and business
partners http//flickr.com/services/. How is it
different from traditional photo album website?
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Similar Trends in Business Applications?

• Functionalities Aggregation
• Enterprise Systems Integration
• Legacy systems, newly developed systems, third
  parties solutions, third parties services, etc.
• Business Process Management
• Composing subsystems to support different
  business processes which could change from time
  to time

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Our Scope

• Part I XML, Web Services, Service-oriented
  Architecture
• Part II Business Process Modelling and
  Semantic Web

COMP3150/COMP4700 E-technology Architectures,
Tools and Applications
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Architectures, Tools and Applications

• Architectures
• Software Architecture
• Service-oriented architecture (e.g., Web
  Services)
• Knowledge Architecture
• Representation standards, e.g., XML, RDF, OWL,
  SWRL
• Tools
• Web Service development
• e.g., Axis2, Oracle BPEL engine
• Web content manipulation
• e.g., XMLSpy, Protégé, Jena API
• Applications
• Web 2.0 style using concepts including
  aggregation, collaboration, composition

COMP3150/COMP4700 E-technology Architectures,
Tools and Applications
13
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Web Services

• " a piece of business logic accessible via the
  Internet using open standards (Microsoft)
• Encapsulated, loosely coupled, contracted
  software functions, offered via standard
  protocols over the web (DestiCorp)
• A set of interfaces, which provide a standard
  means of interoperating between different
  software applications, running on a variety of
  platforms and/or frameworks (W3C)
• The functionality that can be engaged over the
  Web

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Semantic Web

• Semantic Web
• A universal medium for info exchange by putting
  doc with computer-processable meaning (semantics)
  on the Web.

ltemailgt ltheadgt ltfrom name"Michael Maher"
address"michaelmaher_at_cs.gu.edu.au"/gt ltto
name"Grigoris Antoniou" address"grigoris_at_cs.uni
bremen.de"/gt ltsubjectgtWhere is your
draft?lt/subjectgt lt/headgt ltbodygt Where is
the draft of the paper? lt/bodygt lt/emailgt
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Applications?
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Emerging computing paradigms

• Pervasive/Ubiquitous computing
• Grid computing
• Cloud computing
• Service-oriented computing
• Context-aware computing
• Green computing

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Pervasive/Ubiquitous Computing

• Create a ubiquitous environment that combines
  processors and sensors with network technologies
  (eg., wireless) and software to create an
  intelligent environment to improve life. (one
  person, many computers)
• Applications health and home care, environment
  monitoring, intelligent transport systems.

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Pervasive Computing Applications
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Cloud Computing

• a computing paradigm in which tasks are assigned
  to a combination of connections, software and
  services accessed over a network.
• Users use a thin client, eg. iPhone and laptop,
  to reach into the cloud for resources.
• http//www.youtube.com/watch?v6PNuQHUiV3Q

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Cloud Computing

• Driven by Amazon, Google, Yahoo, Salesforce

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Service-oriented Computing

• Support development of rapid, low-cost and easy
  composition of distributed applications in
  heterogeneous environments.
• Evolved from object-oriented and component
  computing.
• http//www.youtube.com/watch?vzV860odGN5Y

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Context-aware Computing

• Context refers to the physical and social
  situation in which computational devices are
  embedded.
• It is to acquire and utilize information about
  the context of a device to provide services that
  are appropriate to the particular people, place,
  time, events, etc.

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An Example of Context-aware Computing

• A cell phone will always vibrate and never
  beep in a concert/meeting, if the system knows
  the location of the cell phone and the
  concert/meeting schedule.

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References

• Web 2.0
• http//www.oreillynet.com/pub/a/oreilly/tim/news/2
  005/09/30/what-is-web-20.html (worth reading
  article)
• https//interlab.pnl.gov/docs/web20_interLab05.pdf
  
• Pervasive Computing
• http//www.parliament.uk/documents/upload/postpn26
  3.pdf
• www.cs.iit.edu/scs/psfiles/Sun-IEEE04.pdf
• http//www.cs.utah.edu/sgoyal/pervasive/