Chapter 1 Flashcards
IT’S THE MANAGEMENT OF INFORMATION…DATA,
AND THE KNOWLEDGE DERIVED FROM IT ?
Information Management
5 keys to Information Management
Leadership, Operations, Processes, Data, Technology
Responsible for setting the vision or strategy, and make key decision
Leadership
These are people, project management, and communications
Operations
Design, Document, Execute
Process
Collect, Organize, Maintain and Use
Data
This one is aligned with the four prior keys of information management
Technology
It is an organized collection of logically related data
Database
Facts the includes customer name, address, and mobile number (numeric, character, and dates)
Structured Data
Structured Data is the kind of data that are usually stored in tabular form. T or F
True
This kind of data includes multimedia data like photo image, sound recording, or video clip
Unstructured Data
Data cannot be referred as to facts concerning objects, and events that could be recorded and stored on computer media. T or F
False
Data is also a stored representation of objects and events that have meaning and essential in the user’s environment.
True
It is a software and it is responsible for controlling the databases
Database Management System
It is described as properties or characteristics of
end-user data and the context of that data.
Metadata
All 5 Disadvantages of File Processing Systems
Program-Data Dependence, Duplication of Data, Limited Data Sharing, Lengthy Development Times, Excessive Program Maintenance
This system was early approach to managing data in computer systems before the advent of modern database management systems.
File Processing System
In file processing systems, file descriptions were embedded within each application program that accessed the file. This tight coupling between programs and data structures meant that any change to the file structure required modifications to all programs using that file.
Program-Data Dependence
Applications were often developed independently, leading to unplanned data duplication across multiple files
Duplication of Data
Each application typically had its own private files, making it difficult for users to share data outside their specific applications
Limited Data Sharing
Developers had to start from scratch when creating new applications, designing new file formats and descriptions, and writing file access logic for each new program
Lengthy Development Times
The combination of the above factors resulted in a heavy program maintenance load for organizations relying on traditional file processing systems
Excessive Program Maintenance
It is a method of organizing and managing data that addresses many of the limitations of traditional file processing systems.
The database approach
Are graphical systems used to capture the nature and relationships among data
Data Models
A person, a place, an object, an event, or a concept in the user environment about which the organization wishes to maintain data
Entities
A well-structured database establishes the relationships between entities that exist in organizational data so that the desired information can be retrieved
Relationships
A database that represents data as a collection of tables in which all data relationships are represented by common values in related tables.
Relational Databases
