BIS02 Systems Architecture

Business Information Systems Systems Architecture Prithwis Mukerjee, Ph.D.

From Science to Engineering ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Integrated Systems ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Two Tier : Client Server Architecture ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Three Tier Architecture ,[object Object],[object Object],[object Object],[object Object],[object Object]

Multi-Tier Architecture ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],“ internet”

Multi Tier Architecture - Consolidation “ internet” Application server and web server physically located on same machine All three servers on same physical machine

Two Tier : Multiple Applications ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Sales server Accounts server machines at Head Office machines at Sales Offices

Managing Complexity # 1 : RDBMS ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Integrated Database Oracle SQL Server MySQL machines at Head Office machines at Sales Offices

Managing Complexity # 2 : ERP ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Identical software across all company machines Integrated Database Oracle SQL Server MySQL Integrated ERP system SAP Oracle Apps

Handling Specialist Requirements Integrated Database Oracle SQL Server MySQL Integrated ERP system SAP Oracle Apps Identical software across all company machines Few specialists may have specific software e.g. Data Warehouse for Business Intelligence

Large + Complex + Distributed Systems Database Server Applications Server Wide Area Network

Secure, Web Based, Enterprise Systems Database Server Applications Server Firewall Servers Hackers wil get stopped by firewall “ internet”

Development of Application Systems Database Server Web + App Server ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],“ internet”

Summary ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

BIS02 Systems Architecture

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BIS02 Systems Architecture