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The Interactions Between Hosting and Hosted Applications

This document provides notes and requirements for the interactions between hosting and hosted applications. It covers topics such as functionality descriptions, data exchange, management and control, authentication and security, implementation characterization, and documentation.

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The Interactions Between Hosting and Hosted Applications

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  1. The Interactions Between Hosting and Hosted Applications WG23 Notes Gathered by Dongbai Guo

  2. Interactions Between Hosting and Hosted Applications • Requirement of a hosted application • Functionality description a hosted application • Data exchange between hosting and hosted application • Manage and control a hosted application • Authentication and security • Hosted application, implementation characterization • Hosted application, documentation

  3. Hosted Application:Requirement Specification • A machine/human readable profile of a hosted application • Hardware • Software • Library • Operating system • Applications • License

  4. Hosted Application:Functionality Profile • What the hosted application can do • Function profile • Input – SOP UIDs • Output – Object definition • Operation – behavior specification • Error – signaling and handling

  5. Hosted and Hosting Application:Data/Message Exchange • Programming API • Programming language neutral interface definition • XML • DICOM object • CORBA/IDL • Communication protocol • File • Streaming • HTTP/WebDAV/… • DICOM

  6. Manage and Control a Hosted Application • Life cycle management • Installation/upgrade/downgrade/patch • Process control and signaling • Start/stop/pause/kill/termination/commit • Interface control (user interaction) • Input: mouse, voice • Output: display, printer • Error and exception handling

  7. Security and Privacy • Authentication • Application/User • Authorization • System resources (hardware and software) privilege grant and revoke • Information right and privacy • Auditing/logging

  8. Implementation Characterization • Implementation version and ownership • Benchmark • Certification • Standard/regulation conformance

  9. Documentation • Help • User guide • Error/exception guide • Internationalization

  10. Questions I Have • The level of data sharing between hosting and hosted application • (Web) Application/process/thread • Complex workflow transaction involving multiple hosted applications? • Privilege difference between hosting application and hosted application • What is the use case we are targeting?

  11. Application Level Interface Standard • CORBA • Microsoft (D)COM

  12. Solutions • Java/.NET • Dev toolkits • Platform + Interpreted languages • Shared libraries • Grid/Distributed applications

  13. Java Applications • IBM Websphere • BEA WebLogic

  14. Compile Libraries Development Toolkit • Vendor or author of the library defines interface • Developer download libraries and build applications on top of the libraries

  15. Interpreted Languages • IDL (Interactive Data Language) • Matlab

  16. Shared Libraries • Dynamically loaded • Shared the same process space

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