Software Architecture for Mobile Distributed Computing

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Software Architecture for Mobile Distributed
Computing

• Presented by
• Deepak N Lakshminarayanan
• The University of Texas at Dallas
• Under the Guidance of
• Dr. Lawrence Chung

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Overview

• Survey on Software architecture developed for
  mobile system, which
• Is accessible anywhere
• Is accessible anytime
• Can tolerate occurrence of disconnection
• Can support natural interaction with users
• Mobile network is
• Highly dynamic in nature
• Absence of infrastructure

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Goal

• To develop mobile system architecture, enabling
  ambient intelligent vision, i.e.
• Consumers will be provided with available content
  and services immediately
• These content and service are provided
  universally
• This should be done at runtime based on specific
  situation
• This mobile system was developed by team headed
  by Valérie Issarny Research director, INRIA

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WSAMI A Middleware Based Web Service

• WSAMI supports abstract specification of Ambient
  Intelligence applications.
• When? At run time because of mobile nature
• Consumer-oriented application
• Built on Web Service architecture ensures
  service availability in most environments
• Java based prototype.
• IEEE 802.11b as its underlying WLAN

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WSAMI MIDDLEWARE ARCHITECTURE

• Middleware divided into two parts
• Core Broker
• Wireless Container
• CSOAP Resource constraint
• Naming and Discovery
• Support for connector customization
• For QOS

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Solutions based on WSAMI

• Middleware architecture for Mobile System
• Dynamic composition of Mobile Services
• Service Discovery Protocol (SDP)

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Middleware architecture for Mobile System

• Solution based on Web, i.e. Web Service
• Reason behind easily deployable in any
  environment
• Introduced XML-based WSAMI
• XML language allows dynamic retrieving of
  instances
• Cost
• Language generate security
• Language also generates performance
• Reduce complexity

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Dynamic composition of Mobile Services

• Based on Group Management paradigm
• Devised a middleware functionality for supporting
  dynamic composition of mobile services
• This solution solves the following issues
• Cooperation of nodes
• Ensures Trust Management between nodes
• Develop distributed application over dynamic,
  mobile network

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Service Discovery Protocol (SDP)

• Issue During design, run time requirement cannot
  be predicted
• For this, Mobile nodes must discover and interact
  with services available at their vicinity
• SDP enables
• Nodes to find and use services without network
  knowledge
• Nodes are aware of network environment available
  at its vicinity

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Future Work

• As Mobile Computing has a bright future, so does
  Software Architecture for Mobile Computing ?

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Thank you for your patience

• Any Question?

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Reference

• V. ISSARNY, D. SACCHETTI, F. TARTANOGLU, F.
  SAILHAN, R. CHIBOUT, N. LEVY, A. TALAMONA.
  Developing Ambient Intelligence Systems A
  Solution based on Web Services, in "Journal of
  Automated Software Engineering", January 2005.
• Valerie Issarny, ARLES Software Architecture and
  Distributed Systems (project team). Activity
  Report INRIA, 2004
• A.L. Murphy, G.P. Picco, and G.-C. Roman.
  Software Architecture for Mobile Computing. In
  LNCS 2804, pp. 182-206, 2003.
•