Multidimensional
scaling (MDS) is a set of related statistical techniques often used in information
visualization for exploring similarities or dissimilarities in data. MDS
is a special case of ordination. It describes
a family of techniques for the analysis of proximity data on a set of stimuli
to reveal the hidden structure underlying the data. The proximity data can come
from similarity judgments, identification confusion matrices, grouping data,
same-different errors or any other measure of pair wise similarity.
Perceptual
mapping is a diagrammatic technique used by asset marketers that attempt to visually display the perceptions of
customers or potential customers. Typically the position of a product, product
line, brand, or company is displayed relative to their competition.
It offers a unique ability to communicate the
complex relationships between marketplace competitors and the criteria used by
buyers in making purchase decisions and recommendations. Its powerful graphic
simplicity appeals to senior management and can stimulate discussion and
strategic thinking at all levels of all types of organizations. Perceptual mapping involves two steps:
(1) data collection and;
(2) data analysis and presentation.
Eg. Of Perceptual mapping:-
Brand A
|
Brand B
|
Brand C
|
Brand D
|
Shares
a few attributes with Brand B
|
Shares
a few attributes with Brand A
|
Shares
no attributes with competitors
|
Shares
many attributes with Brand F
|
More
Classy
|
More
Sporty
|
Is
conservative
|
More
Practical
|
Less
Sporty
|
Less
Classy
|
Is
Sporty
|
Less
Conservative
|
Brand E
|
Brand F
|
Brand G
|
Your Brand
|
Shares
no attributes with Brand G
|
Shares
many attributes with Brand E
|
Shares
no attributes with Brand E
|
Shares
absolutely no attributes with any Brand
|
More
Practical
|
More
Conservative
|
More
Classy
|
Exclusive
|
Less
Classy
|
Less
Practical
|
Less
Practical
|
Unique
|
There are two methods of perceptual mapping:-
·
Overall
Similarity – Here one has to ask people how different or similar 2 pair of
objects is. Here we don’t mention any attribute i.e. on which we are measuring.
Here one might reveal some dimensions not known to the respondents.
·
Attribute
based- Here one has to take attributes of the things he is comparing. Its
simple as one just has to list down the attributes and ask people about
similarities.
S Submitted by:-
Sumedha Singla
14114
Group - G (HR-Batch)
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