UNIT 2
Collection, organization and
presentation of data
,INTRODUCTION
Unorganized data – Raw Data
The collected data is classified into
classes and sub classes according to
some characteristics.
,CLASSIFICATION
Process of arranging data into sequence
and groups according to their common
characteristics
, OBJECTIVES OF
CLASSIFICATION
To simply and condense the mass of
data
To differentiate between similarity and
dissimilarity of data
To undertake comparisons
To study relationships
To prepare the data for tabulation
Requisites for good classification
Suitability , unambiguous, flexibility,
stability
Collection, organization and
presentation of data
,INTRODUCTION
Unorganized data – Raw Data
The collected data is classified into
classes and sub classes according to
some characteristics.
,CLASSIFICATION
Process of arranging data into sequence
and groups according to their common
characteristics
, OBJECTIVES OF
CLASSIFICATION
To simply and condense the mass of
data
To differentiate between similarity and
dissimilarity of data
To undertake comparisons
To study relationships
To prepare the data for tabulation
Requisites for good classification
Suitability , unambiguous, flexibility,
stability
