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3 tier architecture

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3 tier architecture

3 tier architecture

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  • This single system with all the 3 requirements is called as 1-tier.

    In 1-tier, the client is known as thick client or fat client as everything should be processed by the client itself.
  • All the required components are coupled within client and server.
  • It is possible to implement the 2 tier architecture in a single system with a logical separation between database and presentation with business logic coupled with any of other 2 layers.
  • Transcript

    • 1. Sreyachandran.v Sreya.chandran31@gmail.com www.facebook.com/sreyachandran twitter.com/username in.linkedin.com/in/profilename 3-TIER ARCHITECTURE
    • 2. Disclaimer: This presentation is prepared by trainees of baabtra as a part of mentoring program. This is not official document of baabtra –Mentoring Partner Baabtra-Mentoring Partner is the mentoring division of baabte System Technologies Pvt . Ltd
    • 3. What A Tier Means? • In computer terminology, tier corresponds to layers of different systems involved in communication. • 3 layers are User interface Business logic Backend
    • 4. • Example: A software to maintain regular customer details in a super market to provide offers. A GUI should be presented (displayed) to the employee to enter the customer ID.
    • 5.  Business logic layer : Some program with sufficient logic application to read the ID and display the customer details.  Database should be maintained with regular updates of credits and debits etc.
    • 6. 1-Tier Architecture •This single system with all the 3 requirements is called as 1- tier. GUI BUSINESS LOGIC DATABASE 1-Tier
    • 7. ADVANTAGES • Simple • Easy to design DISADVANTAGES • Not scalable(Difficult for multiple users). • Hard to modify. • Monolithic –high maintenance.
    • 8. 2-Tier Architecture BUSINESS LOGIC & DATABASE GUI 1’st Tier(client) 2’ndTier(Server) •All the required components are coupled within client and server.
    • 9. DATABA SE GUI & BUSINES S LOGIC 1’st Tier(client) 2’ndTier(Server) •It is possible to implement the 2 tier architecture in a single system with a logical separation between layers.
    • 10. ADVANTAGES • Simple to implement compared to 3-tier. • Scalable. • Maintenance of code becomes easy compared to 3 tier. DISADVANTAGES • Performance degrades when users increase. • Complex application rules difficult to implement in client and have poor performance.
    • 11. 3 Tier Architecture BUSINESS LOGIC DATABA SEGUI •User Interface, Business Logic and Database Server are separated.
    • 12. ADVANTAGES • Complex application rules easy to implement in application server . • Scalability-Superior performance for medium to high volume environments. • Flexibility. Because each tier can be managed or scaled independently, flexibility is increased. • More complex structure. • More difficult to setup and maintain. DISADVANTAGES
    • 13. THANKYOU
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