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Diplomarbeit im Studiengang Medieninformatik
Remote Configuration Management Conception
Development of a Service Application based on OSGi
Philip Alb
Remote Configuration Management 1
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Agenda

• Overview What and Why
• How Key Components
• Semantic Model
• A Scenario
• OSGi and UPnP
• Implementation
• Conclusion and Outlook

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Overview What and Why

• Maintain Devices
• Non-Standard Devices in Remote Networks
• Analyze device
• Find compatible Software
• Update device

• Growing Home Networks
• New intelligent devices
• Very heterogeneous complex home networks
• Users cant do the job
• Device Vendors are responsoble for updates
• ?

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Home network
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Challenges

• Little User Involvment
• Flexible Technology Integration
• Open Solution
• ? Without Open solution
• User device might not supported by his favorite
  Service Provider
• Service Provider has to support many solutions
  instead of concentrating on one

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Key Components

• Semantic Model
• Common Language (for people and machines)
• Common Understanding About Involved Entities
• ?OWL Ontology
• Self Organizing Network Components
• Zero-Configuration
• ?UPnP Enabled Devices
• Protocol Integration
• ?OSGi plattform

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Semantic Model 1

• Ontology
• Model of a specific field of knowledge
• (concepts and how they are related together)
• Vendor-independant View on RCM

• Development
• Web Ontology Language (OWL)
• Protégé OWL Plugin
• Reasoner
• Checks consistence

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Semantic Model 2

• Web Ontology Language (OWL)
• XML based
• Hierarichal Class Model with Classes, Instances
  and Properties

• Rules define how classes are related together
• Vegetarian pizza can have no other than
  vegetable toppings
• Reasoner checks rule

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Semantic Model 3
Service Ontology Classes Person, Organization,
Device, Service, Software...

• Devices

• Services

• Equivalent Classes
• Different name but same meaning

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Semantic Model 4

• Inferred Classmodel
• Defined Subclasses
• Inferred Subclasses

• Ontology - and now?
• Build a knowledge base
• Map to other models, e.g. to XMI/UML for better
  visualization
• Use as base for an application
• Generate model consistent Java classes

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Repair Service Scenario

• Owner
• Device
• Assistant
• Analyzes device
• Gets compatible Software
• Installs it on device
• Service Provider
• Knows the right Software
• Provides Software Repository
• Gateway
• Central Point of control

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UPnP OSGi

• Universal Plug Play Communication Technology
• Based on Open Standards HTTP, SOAP, XML
• Self Discovery of Location and Functionality
• ?no network configuration
• ?no driver installation
• PlugnPlay for local Networks!

• Open Service Gateway initiative
• Java Framework Software Container
• Cooperation Model Service Registry
• Share functionality through services
• Flexible Technology Integration

OSGi UPnP (how software is running) (how
softare is communicating) ?complementary
technologies match perfectly!
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OSGi UPnP 2

• UPnP Base Driver
• Import/Export Automatic Mapping between UPnP
  and OSGi World
• Access of UPnP Services like normal OSGi services

1. Discover a UPnP device 2. Create Object as
Proxy 3. Register as OSGi Service Bundles can
use UPnP Service
1. Bundle registers Service 2. Base Driver is
notified 3. Advertises to UPnP network Control
Point can use OSGi Service
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Service Application 1

• Washing Machine
• UPnP Standards for White Goods not published ?
  Simulator
• Services Wash, Information and Update
• Update via HTTP Upload (every UPnP device has ist
  own HTTP Server)

• Service Application on Gateway
• Web Application Control of update process with
  Web Browser
• Control Point Access device (and Service
  Provider)

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Application 2
1.Get all updateable devices 2.Get devices from
registry
1.GetSoftware ( DeviceID) 2.Get DevInfo from
device via BaseDriver 3.Get Software List From SP
1. UpdateDevice ( DeviceID, SoftwareID) 2.
Download Software form SP 3. Upload Software to
device
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Conclusion Outlook
Challenges Key Components

• Little User Involvment ?UPnP
• Flexible Technology Integration ?OSGi
• Open Solution ?Common Description

• Future work
• Continue Ontology development
• Service Provider Access, e.g. with JXTA Bundle
• Porting of gateway to Embedded Plattform
• Bluetooth Bundle
• Security Privacy in OSGi Spec only a footnote!

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Thanks for your attention!