3. 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
7. PRESENTATION LAYER
Allows users to interact with the
system.
Implemented as GUI interface.
Defines how data should appear to
the user & how user interact with
the interface.
9. RESOURCE MANAGEMENT
LAYER
Deals with and implements
different data sources of
Information System.
Referred to as Data layer
Implemented using Database
Management System.
15. ADVANTAGES AND DISADVANTAGES OF 2-TIER
ARCHITECTURE
ADVANTAGES:
Easy to use
Simple compared to 3-Tier.
DISADVANTAGES:
Performance degrades when users increase.
Problems arise when client beholds most
application logic.
17. EXAMPLE
USER REQUESTS FOR
WITHDRAWAL
REQUESTS FOR USER’S
BALANCE
DATABASE RETURNS FOR
REQUEST
WITHDRWAL DONE
DATA STORAGE SPACE
USER INTERFACE
BUSINESS LOGICS AND
CALCULATIONS APPLIED HERE
18. ADVANTAGES AND DISADVANTAGES OF 3-TIER
ARCHITECTURE
ADVANTAGES:
SCALABILITY
FLEXIBILITY
DISADVANTAGES:
PERFORMANCE LOSS WHEN DISTRIBUTED OVER
INTERNET
COST ISSUES ON INTEGRATING DIFFERENT 3TIER
SYSTEMS
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