PowerPoint Presentation:Overview of Datawarehousing

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Table of Contents

Student Notes

Opening Slide

TOPICS COVERED

1960'S

MID 60'S-LOTS OF MASTER FILES

1965

1970

1975

1980

THE EXTRACT PROGRAM #1

THE EXTRACT PROGRAM #2

THE DATA WAREHOUSE #1

THE DATA WAREHOUSE #2

SUBJECT ORIENTATION

PROCESS APPLICATION ORIENTATION

SUBJECT-ORIENTATION

INTEGRATION #1

INTEGRATION #2

DATA INTEGRATION #1

DATA INTEGRATION #2

TIME VARIANCY #1

TIME VARIANCY #2

NONVOLATILE #1

NONVOLATILE #2

THE DATA WAREHOUSE #3

GRANULARITY OF DATA

GRANULARITY

PARTITIONING OF DATA

PARTITIONING

DATA MODELING

REPRESENTING ENTITIES AND RELATIONSHIPS

CORPORATE ERD MODEL

RELATIONSHIP BETWEEN THE ERD AND THE DIS

MID-LEVEL MODELLING

THE MID-LEVEL OR "DIS"

RELATIONSHIPS IN THE ERD

AN EXPANDED DIS

STAR SCHEMA #1

STAR SCHEMA #2

DEVELOPMENT

DEVELOPMENT:Step #1

DEVELOPMENT:Step #2

DEVELOPMENT:Step #3

Sales star schema

THE FACT TABLE #1

THE FACT TABLE #2

Example of the Sales Fact Table

THE TIME TABLE

Example of the Sales star schema

QUERYING

EXAMPLE OF "DRILL-DOWN"

EARLY WAREHOUSING EFFORTS

INFLOW OF DATA

DATA CLEANSING TOOLS

DATA MIGRATION

MIGRATION TOOLS

DATA MIGRATION

TRANSFORMATION PROCESS

SYSTEM FLOW

ARCHITECTED ENVIRONMENT

LEVELS OF THE ARCHITECTURE #1

LEVELS OF THE ARCHITECTURE #2

DATA MINING

WHEN TO MINE

DATA MINING TOOLS

DATA MINING SYSTEMS

TRANSFORMING DATA #1

TRANSFORMING DATA #2

TRANSFORMING DATA #3

AN EXAMPLE

THE FUTURE

CONCLUSION #1

CONCLUSION #2

THE END

Presentation Created By: Steve

Email: seminfs@comcast.net

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