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  <pub:Article rdf:about="http://ebiquity.umbc.edu/paper/html/id/175/Service-Composition-for-Mobile-Environments">
    <rdfs:label><![CDATA[Service Composition for Mobile Environments]]></rdfs:label>
    <pub:title><![CDATA[Service Composition for Mobile Environments]]></pub:title>
    <pub:publishedOn rdf:datatype="&xsd;dateTime">2005-01-01T00:00:00-05:00</pub:publishedOn>
    <pub:abstract><![CDATA[Service Composition, that is, the development of customized services by discovering, integrating and  executing
existing services has received a lot of attention in the last couple of years with respect to wired-infrastructure or Internet web services.
With the advancement in the wireless technology and rapid deployment of
mobile devices, we envision that in the near future wirelessly connected mobile devices in
a given vicinity will also provide services that can be leveraged in the composition
process. This is particularly true of what have been described as ``pervasive computing'' environments. However, wired-infrastructure based service composition architectures are not designed to consider the
various factors like mobility, device heterogeneity,
resource variability and reliability in a mobile environment.
In this paper, we describe the issues related to service composition in mobile environments and evaluate criteria for judging protocols that enable such composition. We present a distributed architecture and associated protocols for service composition in
mobile environments that take into consideration
mobility, dynamic changing service topology and device resources.
The composition protocols are based on distributed brokerage mechanisms
and utilize a distributed service discovery process over ad-hoc network connectivity.
We present simulation results of our protocols, and compare them with a
centralized service composition protocol traditionally used for
wired-infrastructure environments. The results show that our approach clearly
outperforms the existing centralized approaches, and that our protocols are able to adapt and better utilize the changing service topology and resources in a mobile
environment.
]]></pub:abstract>
    <pub:pages><![CDATA[435-451]]></pub:pages>
    <pub:number><![CDATA[4]]></pub:number>
    <pub:volume><![CDATA[10]]></pub:volume>
    <pub:organization><![CDATA[IEEE]]></pub:organization>
    <pub:counter>1292</pub:counter>
    <pub:googleKey>2XmoXysfX5kJ</pub:googleKey>
    <pub:googleCitations>23</pub:googleCitations>
    <pub:tag><![CDATA[service discovery]]></pub:tag>
    <pub:tag><![CDATA[service composition]]></pub:tag>
    <pub:tag><![CDATA[mobile computing]]></pub:tag>
    <pub:tag><![CDATA[service]]></pub:tag>
    <pub:tag><![CDATA[pervasive computing]]></pub:tag>
    <pub:journal><![CDATA[Journal on Mobile Networking and Applications, Special Issue on Mobile Services]]></pub:journal>
    <pub:author>
       <rdf:List>
         <rdf:first><person:Alumnus rdf:about="http://ebiquity.umbc.edu/person/html/Dipanjan/Chakraborty/"><person:name><![CDATA[Dipanjan  Chakraborty]]></person:name><rdfs:label><![CDATA[Dipanjan  Chakraborty]]></rdfs:label></person:Alumnus></rdf:first>
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             <rdf:first><person:PrincipalFaculty rdf:about="http://ebiquity.umbc.edu/person/html/Anupam/Joshi/"><person:name><![CDATA[Anupam  Joshi]]></person:name><rdfs:label><![CDATA[Anupam  Joshi]]></rdfs:label></person:PrincipalFaculty></rdf:first>
             <rdf:rest>
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                 <rdf:first><person:PrincipalFaculty rdf:about="http://ebiquity.umbc.edu/person/html/Tim/Finin/"><person:name><![CDATA[Tim  Finin]]></person:name><rdfs:label><![CDATA[Tim  Finin]]></rdfs:label></person:PrincipalFaculty></rdf:first>
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                     <rdf:first><person:PrincipalFaculty rdf:about="http://ebiquity.umbc.edu/person/html/Yelena/Yesha/"><person:name><![CDATA[Yelena  Yesha]]></person:name><rdfs:label><![CDATA[Yelena  Yesha]]></rdfs:label></person:PrincipalFaculty></rdf:first>
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    </pub:author>
    <pub:firstAuthor><person:Alumnus rdf:about="http://ebiquity.umbc.edu/person/html/Dipanjan/Chakraborty/"><person:name><![CDATA[Dipanjan  Chakraborty]]></person:name><rdfs:label><![CDATA[Dipanjan  Chakraborty]]></rdfs:label></person:Alumnus></pub:firstAuthor>
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      <pub:softCopyFormat><![CDATA[PDF Document]]></pub:softCopyFormat>
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