Clustered Central Computing System
To Workstation
Connections
To Workstation
Connections
Distributed Computing System
IBM Compatible
IBM Compatible
Workstation
Tow er box
Workstation
Workstation
Laptop computer
IBM Compatible
Workstation
Workstation
IBM Compatible
IBM AS/400
IBM Compatible
Workstation
Workstation
Laptop computer
Laptop computer
IBM Compatible
IBM Compatible
Mac Classic
Mac Classic
Mac Classic
Tow er box
IBM Compatible
IBM Compatible
Mac Classic
Mac Classic
Mac Classic
IBM Compatible
Laptop computer
LAN/WAN Connectivity
IBM Compatible
IBM Compatible
IBM Compatible
IBM Compatible
IBM Compatible
Tow er box
IBM Compatible
IBM Compatible
IBM Compatible
Tow er box
Tow er box
IBM Compatible
IBM Compatible
IBM Compatible
IBM Compatible
IBM Compatible
IBM Compatible
Wide Area
Network
IBM Compatible
IBM Compatible
Tow er box
IBM Compatible
IBM Compatible
IBM Compatible
Tow er box
IBM Compatible
IBM Compatible
IBM Compatible
IBM Compatible
IBM Compatible
IBM Compatible
File Server vs. Client Server
File Server Approach
Distributed Application
Client/Server Approach
Distributed Data
Data or
Application
Request
Only
requested
data
Data or
Application
Request
Entire file
Workstation
IBM
Compatible
Server
Tow
er box
Server
Tow
er box
IBMWorkstation
Compatible
Location Connectivity Diagram
Buying
Agents
Singapore
Distribution
Warehouse
Global
Purchase
Material
Suppliers
Omaha
Distribution
Warehouse
Inventory
Control
London
Distribution
Warehouse
Payables
Management
Payables
Process
Bus Network Topology
Mac Classic
Workstation
IBM AS/400
Ethernet
Picture of original drawing by Robert
Metcalfe of the conceptualization of
Ethernet
IBM laser printer
Laptop computer
Token Ring Topology
Works tation
Works tation
Works tation
Token Ring
IBM A S/400
Works tation
Works tation
Works tation
Works tation
Star Network Topology
IBM Compatible
IBM Compatible
IBM Compatible
IBM Compatible
IBM Compatible
IBM Compatible
IBM Compatible
IBM Compatible
Wearable Computers
ERP
Marketing and
Sales
Applications
Financial
Applications
Marketing
Database
Accounting
Database
Materials
Database
Human
Resources
Database
Manufacturing
Applications
HR Applications
Typical Nonintegrated Organizational IS
Marketing and
Sales Applications
Financial
Applications
Marketing, Resource
Planning, Accounting,
Finance, Manufacturing,
Human Resources, Sales,
Suppliers, Customers,
Manufacturing
Applications
HR Applications
Organizational ERP System
Distributed Computing
Advantages
•
•
•
•
•
•
•
Increased adaptability and responsiveness
to local needs
Increased availability of resources due to
redundant systems
Closer alignment with organizational
structure
Improved incremental growth and local
scalability
Increased end user empowerment
Location independence support
development of virtual teams
Independence from single vendor
solutions
Disadvantages
•
•
•
•
•
Increased difficulties in controlling
information resources
Potential for massive data redundancy
Increased complexity and cost
Increased network management resources
Increased difficulty in testing and detecting
failures
The 7 Deadly Sins
•
•
•
•
•
•
•
“If you build it, they will come.”
Omission of a data warehouse architectural framework
Underestimating the importance of documenting all assumptions and potential
conflicts
Abuse of methodology and tools
Abuse of the data warehouse life cycle
Ignorance concerning the resolution of data conflicts
Failure to document the mistakes made during the first DW project