What

What is a PDA?
PDA Characteristics
PDA Capabilities and Applications
Application Development
Bundled Applications
What is a PDA?

☉ Different Views

  • ─ A Computer

    • Pen-based notebook computer plus wireless comm
    • PDA is a window to access network resources
    • Depending on the maturity of intelligent networks
    • Depending on the maturity of network services

  • ─ A Super Cellular Phone

    • A Cellular Phone with extra capabilities
    4r FAX machine on cellular phone 4r some PC functionality
    國立政治大學資訊科學系 連耀南 lien@cherry.cs.nccu.edu.tw  whatis.htm,  Mon Nov 26 14:24:04 CST 2001
    PDA Characteristics

    ☉ Anywhere, Anytime, Anyway, and Anyone

  • ─ Portable, holdable, pocketable

  • ─ Ubiquitous

  • ─ Dynamic Connection

    ☉ Easy to use

  • ─ Pen-centric

    • Hand-writing OCR
    • Gesture Recognition
    • Just like Pen & Paper, and Better!

  • ─ Voice Synthesis

  • ─ Speech Recognition (for voice commands)

    ☉ Wireless Communication Capability

  • ─ Access to network resources

    ☉ Extensibility with PCMCIA cards

    ☉ Optional hard disk

    國立政治大學資訊科學系 連耀南 lien@cherry.cs.nccu.edu.tw  characteristic.htm,  Mon Nov 26 14:24:06 CST 2001
    PDA Capabilities and Applications

    ☉ Basic PDA capabilities

  • ─ Pen-input and hand-writing OCR

  • ─ PCMCIA Card Extensibility

  • ─ Wireless Communications

    ☉ Potential Users

  • ─ Business Excutives

  • ─ Travelling Salesman

  • ─ Raod Warriors

  • ─ Policeman

  • ─ Doctors (dynamic health record retrieval)

    國立政治大學資訊科學系 連耀南 lien@cherry.cs.nccu.edu.tw  cap.htm,  Mon Nov 26 14:24:08 CST 2001
    Application Development

    ☉ Software Development Environment

    ☉ Use Model

  • ─ Working Paradigm

  • ─ Function Paradigm

  • ─ Presentation Paradigm

    ☉ Conceptual Model

  • ─ Physical Resources are heterogeneous

  • ─ Need a unified logical model

    • Easy to use
    • Easy to program
    國立政治大學資訊科學系 連耀南 lien@cherry.cs.nccu.edu.tw  application.htm,  Mon Nov 26 14:24:09 CST 2001
    Bundled Applications

    ☉ Personal Information manager

    • Note Pad
    • Appointment
    • Address book
    • World Clock
    • Personal Information

    ☉ Communications

    • Voice Phone
    • Fax
    • Data Comm (Modem, LAN, Email, ...)
    • Network Database access
    • Host Computer Communication (A Terminal Emulator?)
    • Voice Commands for Phone Dialing

    ☉ General Purpose Business Applications

    • Personal Financial Manager
    • Word Processor with Spelling Checker & Thesaurus
    • Spreadsheet
    • Calendar with voice reminder
    • Calculator
    國立政治大學資訊科學系 連耀南 lien@cherry.cs.nccu.edu.tw  bundle.htm,  Mon Nov 26 14:24:11 CST 2001