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1.Decision Support System, 3.Accounting Information System, 2.Executive…
1.Decision Support System
Data component
storage of information
Internal sources
information from company’s database
data warehouse
External sources
information from governments, policies
web databases
Model
analysis with logical structure
User interface
screen that allow user interaction
3.Accounting Information System
accounts payable
accounts receivable
order processing
general ledger
inventory control
payroll
2.Executive Information System
summarised instead of lengthy explanation
Drill-down capability
allows executives to retrieve information
proactively monitor analyse
identify trends, risk and opportunities
4.Difference between CAD and CAM
CAD
uses powerful computer graphics workstation
enable product designers and engineers
draw design specifications
on display screen
CAM
relies on IT
automate
manage the manufacturing process directly