Introduction to Web Engineering Lab. We are working on software engineering issues of building software systems that effectively utilize various Web-based resources, are adaptable to changing needs and conditions in highly dynamic environments, and allow end users to participate in the evolution of the software.

1. Dept. of Computer Science
Korea Advanced Institute of Science and Technology
Web Engineering
In-Young Ko
March 12, 2013
March 2013

2. Web Engineering Laboratory
Web Engineering Lab.
 Research Areas
 Service-oriented computing
 Web-based software development methods
 End-user software engineering
 Self-managed software
 Component-based software engineering
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Copyright (c) Korea Advanced Institute of Science and Technology
We are working on software engineering issues of building software
systems that effectively utilize various Web-based resources, are
adaptable to changing needs and conditions in highly dynamic
environments, and allow end users to participate in the evolution of
the software.
March 2013

3. Web Engineering Laboratory
People at WebEng Lab.
 Professor:
 In-Young Ko
 3 Ph.D. students:
 Hyungmin Koo
 Hangyu Ko
 Seunghyun Kim
 6 M.S. students:
 Jorge Gaete Villegas
 Gyucheol Park
 Jeunghyun Kwon
 Eunae Kim
 Hyeonjun Jo
 Minhyeop Kim
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4. WWW As a Software Engineering
Platform
March 2013
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5. Web Engineering Laboratory
The Origin of the Web
A proposal to build
a global hypertext
system for CERN
March 2013
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Tim Berners-Lee,
1989
“Information Management: A Proposal”
www.w3.org/History/1989/proposal.html

6. Web Engineering Laboratory
Web Document vs. Web-based SW
March 2013Copyright (c) Korea Advanced Institute of Science and Technology
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Integration of
Legacy Systems
Personalization
Integration of
External Services
Ubiquitous Access
to Web SW

7. Web Engineering Laboratory
The Web: A Platform for Software Engineering
 Provides repositories for searching software services
 Provides a medium for deploying software as services
 Supports protocols to access software services
 Supports an environment to dynamically compose (assemble or
synthesize) applications
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8. Web Engineering Laboratory
Categories of Web Applications
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[GertiKappeletal.(edt.),WebEngineering–TheDisciplineofSystematicDevelopmentofWebApplications,JohnWiley&Sons,2006.]

9. New Trends and Challenges
March 2013
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10. Web Engineering Laboratory
Spontaneous Service Computing Environments
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www.say-service.com/approach.php...ang%3Den
http://www.augmented.org/pix/arconcept.jpghttp://public.cenriqueortiz.com/images/feature-smart-phone.png
http://www.wifigator.com/b-img/publicsafety_diag.jpg
http://www.blogcdn.com/www.tuaw.com
/media/2007/06/iphone_email.png
http://saygj.com/179
http://boomup.chosun.com/site/data/html
_dir/2009/08/16/2009081600269.html

11. Web Engineering Laboratory
New Trends
 Web as a Platform
 Mobile Web & “The One Web”
 Internet of Things
 A network of objects
 Internet of Services
 Locating and Accessing Services
 Service Mash-up
 Semantic Web Services
 Urban Computing
 Web 3.0
 Future Internet with its three central pillars "Social Web",
"Semantic Web" and "Service Web" [Christoph Meinel]
March 2013
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12. Web Engineering Laboratory
Internet of Things (Physical World)
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ryuchiso20.tistory.com/13
dret.net/lectures/web-fall09/trends

13. Web Engineering Laboratory
Internet of Services (Cyber World)
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InternetofServices-TechnologyMap,LarsKirchhoff
http://www.lars-kirchhoff.de/go/research/comments/internet-of-services-technology-map/

14. Web Engineering Laboratory
Urban Computing
 Urban Computing: “The integration of computing, sensing,
and actuation technologies into everyday urban settings
and lifestyles.” [Kindberg et al.]
 Main characteristics of urban settings
 Complex ownership
 More dynamic and dense (participants and applications)
 Important aspects to consider together
 Spatial semantics
 Social behaviors & relations
 Temporal contexts
March 2013
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IEEE Pervasive Computing
July-September 2007

15. Web Engineering Laboratory
New Challenges
 User-centricity
 On-demand application composition (mash-up)
 Connecting users’ high-level needs to the services,
devices, and connections
 Considering essential human factors such as usability and
cognitive resources while proving software services
 Dynamism
 Making applications reconfigurable with different services
and devices under different environments
 Memorizing and reusing useful applications for certain
situations and environments
 Making applications evolvable based on changing user
requirements and situations
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16. Web Engineering Laboratory
Paradigm Shift in Software Development
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static dynamic
Developer-centric
User-centric
Traditional SE
New SE Paradigm
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17. Web Engineering Laboratory
Main Approaches
 User-oriented Service Computing
 Enable high-level software design (in multiple
abstractions) with primarily considering user tasks
 Support iterative and gradual development
 Improve reusability
 Enable application adaptability
 Semantic Web Enabled Software Engineering
 Improve correctness and context awareness
 Improve interoperability
 End-user Software Engineering
 Support semi-automatic composition
 Enable visual programming (mash-ups)
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18. Research Projects
March 2013
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19. Web Engineering Laboratory
On-going Research Projects
 Role-based Spontaneous Service Composition in IoT
Environments (KCC)
 A Task-oriented Computing Framework in Urban
Computing Environments (ETRI)
 Component Grid: An Innovative Software Reuse
Environment (DAPA/ADD)
 Service-oriented Common Operation Environment for
Unmanned Weapon Systems (Samsung Thales)
 Semantic-Cloud-based Multimedia Semantic Annotation
(LOD2)
March 2013
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20. Web Engineering Laboratory
Role-based Spontaneous Service Composition
 Role-based proactive service provision
 On-demand service requirements identification and composition
 Service reconfiguration and optimization based on cognitive resources
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21. Web Engineering Laboratory
Hyper Web
Context Manager
Emergenttask
composition
Task
Reconfiguration
Ranked unit
task instances
High-level
activity
and user
profile
Historical information
Task adaption
based user
feedback
Service
execution
Service Discovery
Location, user mobility and
social relation
Task Ontology
Unit task candidates
support
Spontaneous
Network
Ad-hoc
Functional
Area
Space
Manager
A Task-oriented Computing Framework
 Task-oriented Service Composition Framework
 Allowing users focus on describing their task goals
 Bridging the gap between high-level user tasks and system-level services
 Providing a reuse framework for service composition
 Spontaneous Task Selection and Composition
 Recommending users with emergent tasks
 Enabling tasks be
extended with new
service compositions
 End-user Task Authoring
 Allowing users to create
and/or customize tasks
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Task Lifecycle

22. Web Engineering Laboratory
Cognitive-Resource-Aware Service Provision
 Mobility activities vs. mobile HCI
tasks
 Cognitive resources demanded by
HCI tasks hinders the realization of
mobility activities
 Mobility activities override HCI tasks
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Sensation
Central Executive
Wickens' Model

23. Web Engineering Laboratory
Component Grid: An Innovative Software
Reuse Environment
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The Defense Software Component Grid (DSCG) is an
infrastructure that enables developers of defense software
to transparently and efficiently share and reuse software
components that are developed by different developers for
different information systems.
March 2013

24. Web Engineering Laboratory
Semantic-Cloud-based Multimedia Semantic
Annotation
 Makes it easier for users to
add semantic annotations to
multimedia contents
 Uses semantic clouds as the
primary interface for semantic
annotation
 Generates efficient semantic
clouds from Linked Data
 Users can easily resolve
semantic ambiguity and
choose the most appropriate
semantic cloud
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25. Courses
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26. Web Engineering Laboratory
CS457 Web-based Software Development
 Topics covered
 WWW concepts
 Requirements engineering for Web applications
 Web application modeling and architecture
 Development methods for Web-based SW
 Web usability
 State-of-the-art Web technologies, including Internet agents, Web
Services, Semantic Web, and Web 2.0 paradigms
 Course materials
 Robert W. Sebesta, Programming the World Wide Web, 2nd Ed.,
Addison Wesley, 2003, ISBN: 0321-27056-8.
 Roger S. Pressman and David Lowe, Web Engineering: A
Practitioner's Approach, McGraw-Hill, 2009, ISBN: 9780071263771.
 Gerti Kappel et al. (ed.), Web Engineering – The Discipline of
Systematic Development of Web Applications, John Wiley & Sons,
2006, ISBN: 0-470-01554-3.
 Additional readings will be provided by the instructors throughout the
course.
March 2013
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27. Web Engineering Laboratory
CS459 Strategies and Development of Business Applications
Using Service-Oriented Architecture (SOA)
 Topics covered
 Technical concepts and tools required to develop business applications
using SOA and Web services;
 Technologies and standards related to SOA and Web Services such as
XML, SOAP, WSDL, UDDI, and WS-*
 Organizational opportunities, challenges, and managerial implications
related to the development and deployment of business applications
using the context of SOA
 Course materials
 Erl, T. (2005), Service-Oriented Architecture: Concepts, Technology,
and Design, Prentice Hall, Upper Saddle River, NJ.
 Hagel III, J. (2002), Out of the Box: Strategies for Achieving Profits
Today and Growth Tomorrow through Web Services, Harvard Business
School Press, Boston, MA.
 Sandeep Chatterjee, James Webber (2004), Developing Enterprise Web
Services: An Architect's Guide, Prentice Hall PTR.
 Additional readings will be provided by the instructors throughout the
course.
March 2013
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28. Web Engineering Laboratory
Meetings
 Breakfast Meeting – every Monday morning
 Lab Seminar – every Tuesday evening
 Discussions about research projects
 Full presentations – about the progress on
individual research and projects
 Short presentations – about important literatures
and initial ideas (done by 1st semester graduate
students)
 Individual Meetings – every week
 Lab Gathering – at least once a month
 M.T.
 Summer – Jeju and/or nice beach and/or
mountain
 Winter – Ski resort and/or mountain
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29. Web Engineering Laboratory
Conferences
 WWW (World Wide Web)
 ICWE (International Conference on Web
Engineering)
 ICSE (International Conference on
Software Engineering)
 ISWC (International Semantic Web
Conference)
 WI (Web Intelligence)
 COMPSAC (Conference on Computers,
Software, and Applications)
 Ubicomp/Pervasive
 KCSE (Korea Conference on Software
Engineering)
 …
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30. Thanks!
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