Announcements
• Today• Chapter 5 – Data and Knowledge Mgmt
• Tuesday• Access Tutorial• Project 1
• Questions/comments
Digital Universe
Doubling in size every 2 years
Source: http://www.emc.com/leadership/digital-universe/2014iview/executive-summary.htm
Annual Flood of Data from….. Credit card swipes
E-mails
Digital video
Online TV
RFID tags
Blogs
Digital video surveillance
Radiology scans Source: Media Bakery
Industrial Revolution of Data => “Big Data”
Annual Flood of New Data!
In the zettabyte range
1 zettabyte =
1,000,000,000,000,000,000,000 bytes
© Fanatic Studio/Age Fotostock America, Inc.
“Big Data” is getting bigger
Solutions to manage it
Big Data
Diverse, high-volume, high-velocity information assets that require new forms of processing o enable enhanced decision making.
Examples of Big Data
Managing Big Data
Solution: Governance
Data Governance
Implementation Strategy:
Master Data Management
=> Set of Rules
Master Data Management: Types of Data
John Stevens registers for Introduction to Management Information Systems (ISMN 3140) from 10 AM until 11 AM on Mondays and Wednesdays in Room 41 Smith Hall, taught by Professor Rainer.
Transaction Data Master Data
The Database Approach
Database management system (DBMS)
Minimize the following problems:
Maximize the following:
1. Data redundancy2. Data isolation3. Data inconsistency
1. Data security2. Data integrity3. Data independence
How is data organized in a DB:Data Hierarchy
Field
Record
File (or table)
Database
Is a grouping of
Is a grouping of
Is a grouping of
Designing the Database:Data Model
Entity Instance
Attribute Primary key Secondary keys
Student
Student ID (pk)Student NameStudent AddressStudent Major
Student
850000000 (pk)John Doe123 Anywhere St.MIS
Entity Instance
Primary
Secondary
Data Model Technique:Entity-Relationship Modeling
Database designers plan the database design in a process called entity-relationship (ER) modeling/diagrams.
ER diagrams consists of:
1)
2)
3)
Database Management Systems
Database management system (DBMS)
Focus of this course: Relational database model Related Tables (PK Important) Data dictionary
How do you request data? Structured Query Language (SQL) - keywords
Query by Example (QBE) – forms/templatesMicrosoft Access
Beyond Databases:Data Warehousing
Data warehouses and Data Marts Organized by business dimension or subject
Multidimensional
Historical
Use online analytical processing
Knowledge Management (KM)
Knowledge aka. Intellectual Capital
Knowledge management systems (KMSs) Goal: Systematize, enhance and expedite Examples
© Peter Eggermann/Age Fotostock America, Inc.
DB Impacting our lives
NSA Utah Data Center
•internet searches (ie; here's a collection of searches by Federal Government workers)•websites visited•emails sent and received•social media activity (Facebook, Twitter, etc)•blogging activity including posts read, written, and commented on - View our patent•videos watched and/or uploaded online•photos viewed and/or uploaded online•mobile phone GPS-location data•mobile phone apps downloaded•phone call records - View our patent•text messages sent and received•Skype video calls
DB Impacting our lives
•online purchases and auction transactions•credit card/ debit card transactions•financial information•legal documents•travel documents•health records•cable television shows watched and recorded•commuter toll records•electronic bus and subway passes / Smartpasses•facial recognition data from surveillance cameras•educational records•arrest records•driver license information
NSA Utah Data Center
Data and Knowledge Management: Application to other majors
• Accounting
• Marketing
• Finance
• Operations Management
DB Exercise
Create the entities you would need for a
student registration system. Draw out how
the tables may look and how they are
related.