???ast???? ?????s?? S?st?

1
???ast???? ?????s?? S?st?µ?t?? ?e???????a?
????sµ????www.s3lab.com

• ?pe?????
• ?f??d?t? ?sa??at?d??,
• Ep??????? ?a????t??a

2
?e?????? ??e??a?

• ?p??es??st?ef?? ?e???????a ????sµ????
• ?p??es?e? ?st??, ????µat?? ?a? ?µ?t?µ?-p???-?µ?t?µ
  ? (Web, Grid P2P Service Computing)
• ??a??t?s? ?a? S???es? ?te???e???
  ?p??es???(Heterogeneous Service Discovery
  Composition)
• ???te??p???s? ?p??es??? ?a? ?p??es??st?ef??
  S?st?µ?t?? (Service Modeling)
• ?e???????e? ???pt???? S?st?µ?t?? ?a? ?fa?µ????
  ????sµ????
• ?-?µp???? B2C, B2B, P2P (Person-to-Person) ?a?
  ????t? ?-?µp????
• ???pt??? ????sµ???? ???pt??? s?st?µ?t?? µe ß?s?
  t?? a???te?t?????
• P2P S?st?µata ??a?e???s? ?µp?st?s???? ?a?
  ?sf??e?a?
• ??a?e???s? ?p??e???s?a??? ??ad??as???
• S?ed?asµ??, ??t??es? ?a? ?pa?as?ed?asµ??
  ??ad??as???

3
???? t?? ???ast?????

• ?pe????? ?a????t??a ?f??d?t? ?sa??at?d??
• ?p???f??? ??d??t??e?
• G?????? ??a?as?p?????
• ??e??a se te???????e? s???es?? ?p??es???
• ??????? ?a?ta??????
• ??e??a se te???????e? a?a??t?s?? ?p??es???
• T?µ? ???????a
• ??e??a se te???????e? a?a??t?s?? ?p??es???
  
• ????? ???t?????
• ??e??a se te???????e? ??a?e???s??
  ?µp?st?s???? ?a? F?µ?? se P2P ???t?a
• ???st??a ?sa?????
• ??e??a se te???????e? ??ep??e???s?a???
  S??e??as?a?

4
???a 1/2

• Service Centric System Engineering (SeCSE)
  http//secse.eng.it
• ?? ???? ep??e?t???eta? se t?sse??? t?µe?? t??
  a??pt???? ?p??es??st?ef?? s?st?µ?t?? pe????af?,
  a?a??t?s?, s?ed?asµ?, ?a? d?a?e???s? ?p??es???
• Service-Oriented Development In a Unified
  fraMework (SODIUM) http//www.atc.gr/sodium
• ?? ???? p??sf??e? µ?a s?????? ap? µ??t??a,
  ???sse? ?a? ?at?????? e?d??µes? ????sµ???
  (middleware) a????t?? ??d??a (open source) p??
  ?a??pte? t?? a????e? a?a??t?s?? ?a? s???es??
  ete???e??? ?p??es???.

5
???a 2/2

• Ensuring dependability of p2p applications at
  architectural level (P2P Architect)
  http//www.atc.gr/p2p_architect/
• St???? t?? ????? P2P_Architect ?ta? ? ?p?st?????
  ???a??sµ??/eta??e??? a??pt???? ????sµ???? st??
  ?atas?e?? a???p?st?? s?st?µ?t?? ta ?p??a
  a????????? t?? P2P (peer-to-peer) a???te?t?????
• Interoperability Research for Networked
  Enterprises Applications and Software (INTEROP)
  http//www.interop-noe.org/
• St???? t?? ????? ?ta? ? a??pt??? ?ata??????
  s??????? ??a p?????s? t?? ??e??a? st?? pe?????
  t?? ??a?e?t???????t?ta? ?p??e???s?a??? ?fa?µ????
  ?a? ????sµ????

6
?as??? ??e???t??? ?p?te??sµata

• Generic Service Model
• ???sd?????e? ta ????? ?a? d?a???t? ?a?a?t???t???
  ete???e??? ?p??es??? ?st??, p???µat?? ?a?
  ?µ?t?µ??-p???-?µ?t?µ?
• ?p?te?e? t? ß?s? ??a t?? a??pt??? ???ss?? ?a?
  e??a?e??? a?a??t?s?? ?a? s???es?? ete???e???
  ?p??es???
• USQL USQL Engine
• ? USQL e??a? µ?a XML ???ssa a?a??t?s?? ete???e???
  ?p??es??? µe e??a?? t??p?
• ? USQL ???p??e?ta? ap? t? e??a?e?? USQL Engine,
  p?? ep?t??pe? t?? a?a??t?s? ete???e??? ?p??es???
  se ete???e?? e?d? µ?t???? ?a? d??t???

7
?as??? ??e???t??? ?p?te??sµata

• Pyramid-S
• ?p?st????e? t? d?µ?s?e?s? ?a? a?a??t?s?
  s?µas???????? pe???e??aµµ???? ?p??es??? ?st?? se
  ete???e?? µ?t??a
• PSDL P2P service invocation mechanism
• ? PSDL ep?t??pe? t?? pe????af? t?? d?epaf?? µ?a?
  P2P?p??es?a?, ?a??? ?a? t?? t??p? µe t?? ?p???
  a?t? µp??e? ?a ????e?
• O µ??a??sµ?? ???s?? P2P ?p??es??? ep?t??pe? t?
  ???s? t??? se ?p??es??st?ef? pe??ß?????ta,
  ap????pt??ta? t?? te?????? ?ept?µ??e?e? t?? P2P
  d??t??? ap? t? ???st?

8
???sfate? ??µ?s?e?se??

• Tsalgatidou, A., Athanasopoulos, G., and
  Pantazoglou M. 2008. Interoperability Among
  Heterogeneous Services The case of integration
  of P2P Services with Web Services, International
  Journal of Web Services Research, 5(4), 79-110 ,
  October-December 2008.
• Athanasopoulos, G., Tsalgatidou, A., and
  Pantazoglou, M. 2008. Platform Specific
  Extensions in the SOA-Pro Profile for the
  Description of Peer-to-Peer and Grid Services,
  In Proceedings of the 3rd Modeling, Design, and
  Analysis for Service-oriented Architecture
  Workshop (MDA4SOA 2008), co-located with the 12th
  IEEE International EDOC Conference (EDOC 2008),
  17 September 2008, Munchen , Germany.
• Koutrouli, E., and Tsalgatidou, A. 2008. P2P
  Reputation Systems Credibility Analysis
  Tradeoffs and Design Decisions, In Proceedings
  of 12th  Pan-Hellenic Conference on Informatics
  (PCI 2008), Published by IEEE Computer Society,
  28-30 August, 2008, Samos, Greece.
• Pantazoglou, M., and Tsalgatidou, A. 2008. A P2P
  Platform for Socially Intelligent Web Service
  Publication and Discovery, In Proceedings of the
  First International Workshop on Computational P2P
  Networks Theory Practice (ComP2P 2008), part
  of ICCGI 2008, July 27 - August 1, 2008, Athens,
  Greece.
• Tsalgatidou, A., Athanasopoulos, G., Pantazoglou,
  M., Berre, A.J., Pautasso, C., Gronmo, R., and
  Hoff, H. 2008. Unified Discovery and Composition
  of Heterogeneous Services The SODIUM Approach,
  In At your service An overview of results of
  projects in the field of service engineering of
  the IST programme, Elisabetta di Nitto, Paolo
  Traverso, Anne-Marie Sassen, Arian Zwegers, Eds.,
  MIT Press Series on Information Systems, ISBN
  978-0-262-04253-6.
• Pantazoglou, M., Tsalgatidou, A., and
  Spanoudakis, G., 2007. Behavior-aware, Unified
  Service Discovery. In Proceedings of the
  Service-Oriented Computing a look at the inside
  Workshop, SOC_at_Inside'07, September 17, 2007,
  Vienna, Austria.

9
?a??µata ???ast?????

• ???pt???a??? ?????? Sp??d??
• ?????s? S?st?µ?t??
• ?e???????a ????sµ????
• ?etapt???a??? ?????? Sp??d??
• ?e???????e? ??e?t??????? ?µp?????
• ?e???????e? ??????s?? ?p??e???s?a??? ??ad??as???

10
T?µata ?t???a??? ??p??µat???? ???as???

• ??a??t?s? ?p??es??? ?st?? µe ß?s? t?
  S?µas???????? t??? ?e????af?
• ???a??sµ?? ?a?t?p???s?? ??p?? ?ed?µ???? t??
  G??ssa? XML
• ?ata?eµ?µ??? ???p???s? ???a??? ??a??t?s??
  ?p??es??? ?st??
• ???sa?µ?sµ??? sta ?ed?µ??a ??t??es?
  ?p??es??st?ef?? ?p??e???s?a??? ??ad??as???
• S?µas???????? a?a??t?s? ded?µ???? e?t??
  s?µas???????? e?tetaµ???? TupleSpace
• ?atas?e?? ?p??tas?? st? ?e??ß????? ???pt????
  ?fa?µ???? Netbeans ??a t?? ???s? ?p??es???
  ?µ?t?µ??-p???-?µ?t?µ? (P2P Services)
• S?st?µata f?µ?? ??a ?µ?t?µa s?st?µata
  ??e?t??????? s??a??a???

11
??a??t?s? ?p??es??? ?st?? µe ß?s? t?
S?µas???????? t??? ?e????af?

• ??t??e?µe?a ?e??t??
• ?e??t? t?? ???ssa? SAWSDL
• ??µ??????a ??a??? a???µ?? pe????af?? ?p??es??? se
  SAWSDL
• ?e??t? t?? ???ssa? OWL
• ?e??t? t?? ??t?????a? SUMO
• ???p???s? µ??a??sµ?? e?????? ?a? p?s?t???p???s??
  t?? ?ata?????t?ta? µ?a? ?p??es?a? ?st?? se s??s?
  µe t?? apa?t?se?? t?? ???st?, µe ß?s? t?
  s?µas???????? t?? pe????af?
• ?e?????? ?pa?t?se??
• ?e???????e? ?p??es??? ?st?? (WSDL SAWSDL)
• G??ssa p????aµµat?sµ?? Java
• ?e???????e? XML
• ?pe????? ?a????t??a ?f??d?t? ?sa??at?d??
• ?e????? ?p?st????? ??????? ?a?ta??????

12
???a??sµ?? ?a?t?p???s?? ??p?? ?ed?µ???? t??
G??ssa? XML

• ??t??e?µe?a ?e??t??
• ?eta-???ssa XML Schema
• ???????µ?? ta?t?p???s?? ?a? a?t?st????s??
  d?µ?µ???? ded?µ????
• ???a??sµ?? ta?t?p???s?? s???et?? ?a? ap??? t?p??
  ded?µ???? XML
• ?e?????? ?pa?t?se??
• G??ssa ?????aµµat?sµ?? Java
• ?e???????e? ?p??es??? ?st??
• ?e???????e? XML
• ?pe????? ?a????t??a ?f??d?t? ?sa??at?d??
• ?e????? ?p?st????? ??????? ?a?ta??????

13
?ata?eµ?µ??? ???p???s? ???a??? ??a??t?s??
?p??es??? ?st??

• ??t??e?µe?a ?e??t??
• ?ata?eµ?µ??? (epa?a)s?ed?as? µ??a??? a?a??t?s??
  ?p??es??? ?st??
• ???p???s? t?? ?ata?eµ?µ???? µ??a??? µe t??
  a??pt??? µ?a? ? pe??ss?t???? d?e??as??? se
  WS-BPEL
• ?e?????? ?pa?t?se??
• G??sse? ???te??p???s?? (UML, BPMN)
• ?e???????e? ?p??es??? ?st?? (WSDL, WS-BPEL)
• G??ssa ?????aµµat?sµ?? Java
• ?pe????? ?a????t??a ?f??d?t? ?sa??at?d??
• ?e????? ?p?st????? ??????? ?a?ta??????

14
???sa?µ?sµ??? sta ?ed?µ??a ??t??es?
?p??es??st?ef?? ?p??e???s?a??? ??ad??as???

• ??t??e?µe?a ?e??t??
• G??ssa pe????af?? e?????st??se?? ap?te???µe?e?
  ap? ?p??es?e? ?st?? (WS-BP?L)
• ???a?? e?t??es?? e?????st??se?? (ActiveBPEL
  engine) pe???e??aµµ???? se WS-BPEL
• ???pt??? epe?t?se?? st? µ??a?? e?t??es??
  e?????st??se?? ActiveBPEL ??a t? µetaß??? t??
  ???? µ?a? e?????st??s?? ?at? t?? e?t??es? t?? µe
  ß?s? d?a??s?µa ded?µ??a
• ?e?????? ?pa?t?se??
• ?e???????e? pe????af??/µ??f?p???s?? ded?µ???? XML
  ?a? XML-Schema
• ?e???????e? ?p??es??? ?st?? (WSDL, WS-BPEL)
• G??ssa ?????aµµat?sµ?? Java
• ?pe????? ?a????t??a ?f??d?t? ?sa??at?d??
• ?e????? ?p?st????? ??a?as?p????? Ge??????

15
S?µas???????? a?a??t?s? ded?µ???? e?t??
s?µas???????? e?tetaµ???? TupleSpace

• ??t??e?µe?a ?e??t??
• G??ssa pe????af?? ??t??????? OWL
• ???????µ?? a?t?st????s?? s?µas?????????
  pe????af?? ded?µ????
• ???a??sµ?? s?µas????????? ta?t?p???s?? ded?µ????
• ?e?????? ?pa?t?se??
• ?e???????e? pe????af??/µ??f?p???s?? ded?µ???? XML
  ?a? XML-Schema
• G??ssa ?????aµµat?sµ?? Java
• ?pe????? ?a????t??a ?f??d?t? ?sa??at?d??
• ?e????? ?p?st????? ??a?as?p????? Ge??????

16
?atas?e?? ?p??tas?? st? ?e??ß????? ???pt????
?fa?µ???? Netbeans ??a t?? ???s? ?p??es???
?µ?t?µ??-p???-?µ?t?µ? (P2P Services)

• ??t??e?µe?a ?e??t??
• ??atf??µa a??pt???? ?p??es??? ?µ?t?µ??-p???-?µ?t?µ
  ? JXTA
• ?e??ß????? a??pt???? efa?µ???? Netbeans
• ???pt??? ?ata?????? plug-in st? pe??ß?????
  a??pt???? Netbeans ??a t?? ?p?st????? t??
• a??pt???? pe????af?? ?p??es??? ?µ?t?µ??-p???-?µ?t?
  µ? µe ß?s? t?? ???ssa PSDL
• t?? e?a???? ap? µ?a PSDL pe????af? ?ata??????
  stubs ??d??a ta ?p??a ?a ?p?st??????? t?? ???s?
  µ?a? ?p??es?a?
• ?e?????? ?pa?t?se??
• ?e???????e? pe????af??/µ??f?p???s?? ded?µ???? XML
  ?a? XML-Schema
• ?e???????e? ?p??es??? ?st?? (WSDL, WS-BPEL, AXIS,
  WSIF)
• G??ssa ?????aµµat?sµ?? Java
• ?e??ß????? a??pt???? efa?µ???? Netbeans
• ?pe????? ?a????t??a ?f??d?t? ?sa??at?d??
• ?e????? ?p?st????? ??a?as?p????? Ge??????

17
S?st?µata f?µ?? ??a ?µ?t?µa s?st?µata
??e?t??????? s??a??a???

• ??t??e?µe?a ?e??t??
• ???a??sµ?? f?µ?? p?? ????? p??ta?e? ??a s?st?µata
  on-line s??a??a???
• S?????s? ?e?t????p???µ???? ?a? ap??e?t??p???µ????
  a??????µ??
• ??t?µata asf??e?a? t?? µ??a??sµ?? f?µ?? ??a
  ?µ?t?µa s?st?µata ??e?t??????? s??a??a???
• ???p???s? e??? web based reputation s?st?µat??
  ??a ??e?t?????? eµp????
• ?e?????? ?pa?t?se??
• Web application development
• ??se?? ?ed?µ????
• ?pe????? ?a????t??a ?f??d?t? ?sa??at?d??
• ?e????? ?p?st????? ????? ???t?????