Lesson 1: Introduction to Information Management
It is a raw material & unorganized facts that need to be processed.
Data
It is organized in rows and columns.
Structured Data
Its element cannot be stored in rows and columns
Unstructured Data
What are the transformation process of data?
Summarizing the data
Averaging the data
Selecting the part of the data
Graphing the data
Adding context
Adding value
It is a data that have been processed
Information
It is structured information that describes the properties or characteristics of end-user data
Metadata
It is an individual or a group of individuals that accept responsibilities to run an organization.
Management
What are the 3 different meaning of management according to Theo Heimann?
group of managers
subject of management
functions of management
It is a cycle of process that support the organization's learning activities
Information Management
Select the continuous cycle of IM
identification of information
acquisition and creation of information
analysis and interpretation of information
organization and storage of information
information access and dissemination
information use
Select the components of Information Management
People
Process
Technology
It is an organized collection of logically related data.
Database
A set of software programs that controls the organization, storage, management, and retrieval of data in a database
Database Management System (DBMS)
DBMS is a general-purpose software system that facilitates the process of:
Defining
Constructing
Manipulating
Sharing
It is the first computer application that focused on clerical tasks
Manual File System
It is the conversion from a manual file system to a matching file system
Data Processing (DP) Specialist
It is the collection of application programs that perform task
File-Based System
Select the limitations of file-based system
Isolation of data
Redundancy
Incompatible File Formats
Limited Data Sharing
Excessive Program Maintenance
It is the central repository of shared data
Database Approach
Elements of the Database Approach: a graphical system used to capture the nature and relationships among data
Data Model
Data Model:
It is a graphical model that shows the high-level entities
Enterprise data model
Data Model:
It is a more detailed view, matching data structure in database or data warehouse
Project Data Model
ELEMENTS OF THE DATABASE APPROACH:
A person, object, place, event, or concept in the user environment.
Entity
ELEMENTS OF DATABASE APPROACH:
between entities; usually one to many or many to many
Relationship
ELEMENTS OF DATABASE APPROACH:
represents data as a collection of tables
Relational Database
Select the advantages/characteristics of Database Approach
Concurrent use
Structured and described data
Separation of data and application
Data integrity
Transaction
Data Persistence
Data views
Select the disadvantages of a DBMS
Danger of overkill
Complexity
Qualified Personnel
Costs
Lower Efficiency
Roles in the Database Environment: it is responsible for the management of the data resource
Data Administrator (DA)
Roles in the Database Environment:
it is responsible for the physical realization of the database
Database Administrator (DBA)
Roles in the Database Environment: It is a database designer that is concerned with identifying the data
Logical Database Designer
Roles in the Database Environment: It is a database designer that decides how the logical database is to be physically realized
Physical Database Designer
Roles in the Database Environment: once the database has been implemented, the application programs that required functionality for the end-user must be implemented
The application developers
Roles in the Database Environment: It is a type of end-user that are typically unaware of the DBMS
Naive Users
Roles in the Database Environment: It is a type of end-user that are familiar with the structure of the DB
Sophisticated Users