a presentation by W H Inmon

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a presentation by W H Inmon
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the challenge of old applications
- applications grew old - applications could not
be maintained - applications were unintegrated -
applications could not be changed - applications
were undocumented - applications reflected
yesterdays business requirements
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enter ERP
ERP tackles the first few functional areas
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other applications continue to move on
a lot of time is spent doing ERP for the first
few functional areas
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data warehouse starts to make its appearance
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the DSS environment starts to grow to full
maturity
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ERP implementation finally finishes
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lets build a data warehouse!
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choice 1 - build the data warehouse in the ERP
vendor technology
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choice 2 - pull ERP data into a established
data warehouse
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choice 3 - lets build an ERP data warehouse
then pull ERP data into the established
data warehouse
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choice 4 - lets build an ERP data warehouse
then pull non ERP data into the ERP data warehouse
non ERP
ERP
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choice 5 - lets build an ERP data warehouse and
a global data warehouse
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choice 1
choice 2
choice 3
which of these architectural choices make the
most sense for you?
choice 5
choice 4
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the choice you make depends on - - history -
do you already have a data warehouse in
place - business integration - what the ERP
vendor supports - what analytical applications
are available