Thin%20and%20Thick%20Clients

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Thin and Thick Clients
Figment Mark Hopf Chris Nassar
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Thin vs. Thick Client

• Thick Client
• business and presentation logic on client
• data access on server
• Thin Client
• only presentation logic on client
• data access and business logic on server

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Typical Use of PC

• Email
• Word Processing
• Creating Presentations
• Web Access
• All can be achieved using thin clients

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Types Of Thin Clients Software

• Thin Client Java Viewer
• Browser
• Embedded ActiveX Control

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Types of thin clients Hardware

• Network Computers
• Window Terminal Servers - Windows Based Terminal
• Windows PC (HD, no floppy or CD) ???
• Apple Pippin - NC TV

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Motivations

• Costs - 10,400 for first year of PC
  implementation vs. 500 for NC
• Upkeep - All clients upgraded with server upgrade
• Portability - All data on network, any
  workstation can access
• Versatility - More applications stored on server
• Reusability -Old 386/486 recycled

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Drawbacks

• Lack of Privacy
• Tied to network (no local files)
• Need to have more resources with server

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Multi Tier Clients

• Common to Use 3-Tier
• Reduces demands on Data Server
• Limits the Computers to be Managed and Updated
• Move Complexity from Client to Middle Tier
• Client Presentation Logic
• App. Server Business Logic
• Data Server Data Access

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Typical Client/Server Architecture
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Oracles Commitment to Thin Clients

• Developer 2000 Web Cartridge is certified 100
  pure java
• use Dev 2000 thick client to generate
• export to a java web cartridge
• Oracle8i Internet version of data server which
  demonstrates a huge commitment to JDK
• Application Server 4.0 middle tier

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Making Choices

• Middleware
• Platform
• Migration