sequential datawarehousing
TRANSCRIPT
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Datawarehousing Sequencing Chart
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Step 1Determine Users Needs
Does the company need a data
warehouse ...or even a data mart?
What are the business objectives?
Where do I get the data from?
Perform cost/benefit analysis, project
estimation and risk assessment
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Step 2Determine DBMS Server
Platform
Which database servers do we already
have?
Determine cost, interopability and staff
training considerations.
Determine DBMS server platform based
on Return on Investment (ROI)
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Step 3Determine Hardware PlatformWhere should the data warehouse or datamart be housed?
Which hardware platforms do we already
have?
Determine cost, interopability and staf
training considerations.
Determine hardware based on Return on
Investment (ROI).
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Step 4Information & Data ModelingBuilding an Information Model
How do I use a data model to express
relationships between the data?
Resolve access and usage issues.
Determine the logical and physical
design of the data warehouse or data
mart.
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Step 5Construct the Metadata
RepositoryHow do I keep track of what means what,
who can access it and how it will be accessed?
Build a repository.
Determine the business user's view of the
metadata repository.
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Step 6Data Acquisition & CleansingHow do I...
Extract
Cleanse
Scrub
Reconcile
AggregateSummarize
...data from various sources for the data
warehouse or data mart?
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Step 7Transformation,
Transportation, PopulationHow do I build the data warehouse or data
mart?
Transform the data.
Transport the data.
Populate the data warehouse or data
mart.
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Step 8Determine Middleware
ConnectivityHow do I connect the source data to the
target data warehouse or data mart?
Ongoing connection
Direct data access
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Step 9Prototyping, Querying &
Reporting
How do I:
Implement a prototype with userinvolvement?
Develop applications?
Use query and reporting tools?
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Step 10Data Mining
How do I find patterns in the data?
How can those patterns be used for
revenue growth?
How can tools be used to further identify
patterns in the data warehouse or datamart?
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Step 11Online Analytical ProcessingHow can users analyze the data?
How can the neccessary number of
dimensions be determined?
How can users see the data represented in
multiple dimensions?
How can they use the OLAP tools?
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Step 12Deployment & Systems
Management
How can I provide security, backup,
recovery and the necessary capabilities for a
production data warehouse or data mart?
How can resources be allocated best?
How can the growth of the data be
accommodated?
How can everything be kept running
smoothly?
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