CSIS 350 – Lecture 1
Go over syllabus. Discuss a typical class period.
Ask what is a database?
- A collection of data items related to some enterprise
oFor example, customer account information in a bank
oMight be stored in a Rolodex or a file cabinet
oWe’re really more interested in computer databases
- A set of related information
- A collection of related data elements
- An organized collection of data used for the purpose of modeling some type of
organization or organizational process
- System for storing data so that information can be derived from it.
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See if anyone has ever used a database. Discuss applications that use databases: Banner/
WebOpus, Amazon.com, online banking/ATM, Google, airline reservation/scheduling
system, City Market, medical office, others?
Database Management System (DBMS)
System that creates, processes, and administers the database.
Collection of components that supports creation, use, and maintenance of databases.
How is data organized by a DBMS?
Three major Data models used in DBMSs: Hierarchical, network, relational
Hierarchical Model
Data is organized hierarchically, which we can diagram with a tree.
Example: Entertainers sign up with agents, who book jobs for them with clients.
