clustered central computing system to workstation connections
TRANSCRIPT
Clustered Central Computing System
To Workstation Connections
To Workstation Connections
Distributed Computing System
LAN/WAN Connectivity
Wide AreaNetwork
File Server vs. Client Server
File Server ApproachDistributed Application
Client/Server ApproachDistributed Data
Server
Entire file
Data orApplication
Request
Onlyrequested
data
Data orApplication
Request
ServerWorkstation Workstation
Location Connectivity Diagram
SingaporeDistributionWarehouse
SingaporeDistributionWarehouse
OmahaDistributionWarehouse
OmahaDistributionWarehouse
LondonDistributionWarehouse
LondonDistributionWarehouse
InventoryControl
InventoryControl
PayablesManagement
PayablesManagement
Buying AgentsBuying Agents
GlobalPurchase
MaterialSuppliers
PayablesProcess
Bus Network Topology
Picture of original drawing by Robert Metcalfe of the conceptualization of
Ethernet
Ethernet
Token Ring Topology
Token Ring
Star Network Topology
Wearable Computers
ERP
Typical Nonintegrated Organizational IS Organizational ERP System
Marketing, Resource Planning, Accounting,
Finance, Manufacturing, Human Resources, Sales,
Suppliers, Customers,
MarketingDatabase
Human ResourcesDatabase
MaterialsDatabase
AccountingDatabase
HR Applications Manufacturing Applications
Financial Applications
Marketing and Sales
Applications
HR Applications Manufacturing Applications
Financial Applications
Marketing and Sales Applications
Distributed Computing
Advantages Disadvantages
• 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
• 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