W3_HWB_Multiattributes Decision Making – Compensatory Models


1. Problem Definition

At this third blog, I will try to demonstrate what I learned from the book Engineering Economic chapter 14. This technique will be done on the same problem with a problem on my second blog, which is how to choose a water purifier from the many options available.

2. Development of Feasible Alternatives

There are many brands of air purifier at an electronics store with a variety of different specifications. Many decisions are based on other attributes than price[1]. I will use Multiattribute Decision Making with Compensatory Models to select the option, that method will help me narrow down the options through a systematic approach of comparing choices by ranking, weighting, and scoring attributes.

3. Development Outcomes for Alternative

First, list all the option also list attributes on which to choose, it becomes the initial data as table below [2].


4. Selection of Criteria

After setting options and attributes, relative weight are assigned to each attribute according to its ordinal ranking. The simplest procedure is to use rankings of 1,2,3…, based on position, with higher numbers signifying greater importance [3].

Price = 3

Power = 2

Capacity = 4

Warranty = 1

5. Analysis of the Alternatives

Standardize attribute values by convert them to nondimensional form. All of the dimensionless attributes should follow the same trend with respect to desirability. This is necessary in order to have a believable overall scale for selecting the best alternative.


Weighting factor and scoring each alternatives:


6. Selection of Preferred Alternative

The calculation result shows that the highest value is 0.99, that’s option fell on Panasonic F-pmf35a air purifier brands.

7. Performance Monitoring & Post Evaluation of Results

This result is different than the results with the choice of using the Full Analytical Criteria Method in the previous blog. I think this is due to a different ranking ranges in both methods. However, the method Compensatory Models are easier to use because it is faster to do than previous methods. Monitoring and evaluation can be done by adding the attribute and increase number of choice.

References:

[1] Multi attribute Decision Making. Retrieved from http://www.agsm.edu.au/bobm/teaching/EIA/lect15-3.pdf

[2]Info air purifier product. Retrieved from http://www.bhinneka.com/category/air_purifier/brands/sharp.aspx

[3]Sullivan, William G., Wicks, Elin M., & C.Patrick, Koelling. (2012), Engineering Economy 15th Edition. New Jersey, United States: Prentice Hall.

Advertisements

4 Comments

Filed under Hari W, Week 03

4 responses to “W3_HWB_Multiattributes Decision Making – Compensatory Models

  1. AWESOME posting, Pak Hari!! You followed our 7 Step process very well, you provided 3 good citations using APA format AND at ~340 words, you were well within the technical specifications!!

    WOW!! Nice work!!

    And the reason the you came up with a different answer was because you went from a QUALITATIVE analysis to a QUANTITATIVE analysis. When you quantify your options is when you start to see more differentiation between the options.

    BR,
    Dr. PDG, Singapore

  2. Pingback: W7_SSD_Multiattributes Decision Compensatory Model – Selecting Solution for Network Issues | Simatupang AACE 2014

  3. Pingback: Multiattributes Decision Compensatory Model – Selecting Solution for Network Issues | Risky Bits

  4. Pingback: W4_WW_ Choosing a Car Using Compensatory Model | GARUDA AACE 2015

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s