What Is Data?

1 Pages 336 Words

WHAT IS DATA?

DATA: facts, texts, graphics, images, sound & video, segments that have meaning in the user’s environment.

INFORMATION: Data that have been processed in such a way as to increase the knowledge of the person who uses the data.

WHO USES THE DATA:
LAST NAME, FIRST NAME, ID NUMBER
Pickstone Lindsay 33782121
Ong Davina 32712828

DATA BASE:
An organised collection of logically related data.

END USER:
Person using the information

META DATA:
Data that describes properties, characteristics of other data.

Data Item Length Value Description
Name Type Min/max
Course Alpha/number 10 Course ID + number
GPA Decimal 3 0.0/7.0 Student grade point average


INFORMATION & DATA COLLECTION
Data can be collected in many forms4
Survey
Census ALPHA,NUMERIC, WORDS, SYMBOLS,CODED
Tables
Graphs

Possible meanings
Street numbers
Months
Birthdays
Nationality


Information & Data Collection – Data can be collected in many forms.

Flat File Database- accessing, managing and updating data. Relational Databases with a group of related fields that are connected by a key. A flat file database is a database system, which only allows data to be stored as a single set of records of the same kind. Conceptually it is similar to a conventional card index. Eg Microsoft Access, Microsoft Excel.

D.B.M.S.
Consists of a collection of interrelated data & a set of problems to access those data. The collection of data is usually referred to as database, contains information about one particular enterprise. Primary goal of DBMS is to provide an environment that is both convenient and efficient to use in retrieving storing database information.

Information Storage: Methods of storing, computerised, Flat file, Hierarchical, Networked, Objected orientated....