Mobile-process-based ubiquitous computing platform: a blueprint

ABSTRACT

Mobile objects and agents are used for implementing distributed applications. Both concepts allow efficient use of local resources, volatile network connectivity and more efficient communication due to appropriate migration, especially in dynamic ubiquitous environments. Mobile processes enable specifying the complete life cycle of complex mobile applications.

In this paper, we propose a mobile-process-based platform that turns ubiquitous application development into a manageable task. We advocate the use of Web services for implementing mobile processes in a heterogeneous environment. Based on previous work, we sketch a novel approach for realising mobile context-aware Web services, which implement process steps. We use a separation of state, functionality and implementation code, which enables a reduction, expansion and transformation of the service state and functionality during migration.

REFERENCES

• 1: M. Weiser. The computer for the twenty-first century. Scientific American, 265(3):94--104, 1991.
• 2: B. C. Hammerschmidt and V. Linnemann. Migratable Web Services: Increasing Performance and Privacy in Service Oriented Architectures. In IADIS Int. J. on Comp. Scien. and Info. Sys., volume 1, pages 42--56, 2006.
• 3: Dejan S. Milojičić , William LaForge , Deepika Chauhan, Mobile objects and agents (MOA), Proceedings of the 4th conference on USENIX Conference on Object-Oriented Technologies and Systems (COOTS), p.13-13, April 27-30, 1998, Santa Fe, New Mexico
• 4: M. Strasser, J. Baumann, and F. Hohl. Mole: A Java based mobile agent system. 2nd ECOOP Works. on Mob. Obj. Sys., 1997.
• 5: Danny B. Lange , Oshima Mitsuru, Programming and Deploying Java Mobile Agents Aglets, Addison-Wesley Longman Publishing Co., Inc., Boston, MA, 1998
• 6: F. M. T. Brazier , B. J. Overeinder , M. van Steen , N. J. E. Wijngaards, Agent factory: generative migration of mobile agents in heterogeneous environments, Proceedings of the 2002 ACM symposium on Applied computing, March 11-14, 2002, Madrid, Spain [doi>10.1145/508791.508811]
• 7: Yvan Peter , Hervé Guyennet, Object mobility in large scale systems, Cluster Computing, v.3 n.2, p.75-82, 2000 [doi>10.1023/A:1019019918184]
• 8: R. Kapitza, H. Schmidt, and F. J. Hauck. Platform-Independent Object Migration in CORBA. In OTM 2005, LNCS 3760, pages 900--917, Oct 2005.
• 9: Object Management Group (OMG). Common object request broker architecture: Core specification. OMG Doc. formal/02-12-02, 2002.
• 10: Object Management Group (OMG). Life Cycle Service Specification. OMG Doc. formal/2002-09-01, 2002.
• 11: R. Kapitza, H. Schmidt, G. Söldner, and F. J. Hauck. A framework for adaptive mobile objects in heterogeneous environments. In OTM 2006, volume 4276 of LNCS, pages 1739--1756, 2006.
• 12: R. Kapitza and F. J. Hauck. DLS: a CORBA service for dynamic loading of code. In OTM 2003, Sicily, Italy, 2003.
• 13: R. Kapitza, U. Bartlang, H. Schmidt, and F. J. Hauck. Dynamic integration of peer-to-peer services into a corba-compliant middleware. In OTM 2006 Workshops, volume 4277 of LNCS, pages 28--29, 2006.
• 14: R. Kapitza, H. Schmidt, U. Bartlang, and F. J. Hauck. A generic infrastructure for decentralised dynamic loading of platform-specific code. In 7th Int. Conf. on Distrib. App. and Interop. Sys---DAIS'07, 2007. Accepted for publication.
• 15: Li Gong, JXTA: A Network Programming Environment, IEEE Internet Computing, v.5 n.3, p.88-95, May 2001 [doi>10.1109/4236.935182]
• 16: W3C. Web Services Architecture. http://www.w3.org/TR/ws-arch/, 2004.
• 17: Douglas K. Barry, The Savvy Manager's Guide to Web Services and Service-Oriented Architectures, Morgan Kaufmann Publishers Inc., San Francisco, CA, 2003
• 18: W3C. Web Services Description Language (WSDL) Version 2.0 Part 1: Core Language. http://www.w3.org/TR/wsdl20/, 2003.
• 19: W3C. SOAP Version 1.2 Part 1: Messaging Framework. http://www.w3.org/TR/soap12-part1/, 2003.
• 20: Organization for the Advancement of Structured Information Standards (OASIS). Introduction to UDDI: Important Features and Functional Concepts. Whitepaper, 2004.
• 21: T. Andrews et al. Business Process Execution Language for Web Services - Version 1.1, 2003.
• 22: Matthias Kloppmann et al. WS-BPEL Extension for People - BPEL4People, 2005.
• 23: IBM. Websphere process server. http://www-306.ibm.com/software/integration/wps/, 2006.
• 24: C. Erfurth and W. R. Rossak. Autonomous Itinerary Planning for Mobile Agents. In 3rd Symp. on Adapt. Ag. and Multi-Ag. Sys.---AAMAS, 2003.
• 25: C. P. Kunze, S. Zaplata, and W. Lamersdorf. Mobile Process Description and Execution. In 6th Int. Conf. on Distr. App. and Interop. Sys.---DAIS, 2006.
• 26: Walter Binder , Ion Constantinescu , Boi Faltings , Klaus Haller , Can Türker, A Multiagent System for the Reliable Execution of Automatically Composed Ad-hoc Processes, Autonomous Agents and Multi-Agent Systems, v.12 n.2, p.219-237, March 2006 [doi>10.1007/s10458-006-5836-0]
• 27: F. Ishikawa, N. Yoshioka, Y. Tahara, and S. Honiden. Mobile Agent System for Web Services Integration. In Perv. Netw., 2004.
• 28: I. Satoh. A document-centric component framework for document distributions. In OTM 2006, volume 4276 of LNCS, pages 1555--1575, 2006.

INDEX TERMS

Primary Classification:
  H. Information Systems
  H.3 INFORMATION STORAGE AND RETRIEVAL
      H.3.5 On-line Information Services
          Subjects: Web-based services

Additional Classification:
  C. Computer Systems Organization
  C.2 COMPUTER-COMMUNICATION NETWORKS
      C.2.4 Distributed Systems
          Subjects: Distributed applications

  D. Software
  D.2 SOFTWARE ENGINEERING
        D.2.11 Software Architectures
            Subjects: Domain-specific architectures

General Terms:
Design

Keywords:
middleware, mobile processes, mobility, ubiquitous computing, web services