Download Data Resource Management

Data Management
Gerhard Steinke
Data Concepts, Requirements
Database Management
Types of Databases
Data Warehouse, Data Mining
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What do we Need from
Data/Information?
• Accuracy
• Reliability
• Consistency
• Security
• Availability
• Single source
• Reduced data redundancy
• Web accessible
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Database Management Approach
• Single User databases
• Microsoft Access
• Client/Server, Multi-user
• Oracle
• Microsoft SQL Server
• IBM DB2
• Open-source MySQL
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Fundamental Data Components
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Character
Field
• Represents an attribute (a characteristic or quality) of
some entity (object, person, place or event)
Record
• Key field
Table
Database
Database Management System – DBMS
• Interface between user and data
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Designing a Database
Student and Course Information
What fields?
Registration
Reports
Class roster
Student transcript
Forms
Menu – Options - Switchboard
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Access Example
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Tables
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define field characteristics, primary key
Relationships
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showing connections between tables
Check for referential Integrity …an entry must exist in a
different table?
Forms
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used to enter data
Reports
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used to present data
Query
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Selection of the data (sequence may be important)
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Queries –SQL Language, Graphical
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Data Warehouse
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Stores data that has been extracted from operational,
external and other databases
Data has been cleaned, transformed and cataloged
Used by managers and professionals for
• Data mining,
• Online analytical processing,
• Business analysis,
• Market research,
• Decision support
Data mart is subset of warehouse for specific use of
department
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Data Mining
Data in data warehouse is analyzed to reveal
hidden patterns and trends
Examples:
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• Perform market-basket analysis to identify new
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business opportunities / processes
Find root causes to quality problems
Cross sell to existing customers
Profile customers with more accuracy
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Data Resource Management
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Data Administrator - Managerial activity
Database Administrator (DBA) – more technical, database setup
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Data Issues:
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Value of data
Challenge of managing data
Data collecting
Data storage
Data privacy
Data security
Data mining
Data owner
Web-based access
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Current DB News
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http://www.indeed.com/q-Databasejobs.html
http://db-engines.com/en/ranking
https://www.mysql.com/
http://www.teradata.com/TDVideo/?LangType=1033&LangSelect=true
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Ethical Issues…
What kind of data can/should you collect?
How much protection/security is necessary?
How long can/may you keep information?
What do you do with invalid data?
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