This document describes the process of applying Quality Function Deployment (QFD) to develop a new shampoo product. QFD is used to translate customer requirements into technical requirements. The key steps are:
1) Identifying important customer requirements for shampoo through surveys. The top requirements were less chemicals, removing oil/dirt, and preventing hair issues.
2) Determining technical characteristics like amount of chemicals and cost that influence customer requirements.
3) Mapping the relationship between customer requirements and technical characteristics.
4) Prioritizing customer and technical requirements for product development focus. The top customer requirements were less chemicals, removing oil/dirt. The top technical characteristics were amount of chemicals and cost
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PROJECT_REPORT_QUALITY_FUNCTION_DEPLOYME.pdf
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UNIVERSITI TEKNIKAL MALAYSIA MELAKA
FACULTY OF INFORMATION TECHNOLOGY AND
COMMUNICATION
SEMESTER 1 SESSION 2013/2014
MPSW 5053 QUALITY SYSTEMS MANAGEMENT
PROJECT REPORT QUALITY FUNCTION DEPLOYMENT
(SHAMPOO PRODUCT)
PREPARED BY:
LEONG PUI HUANG M031310004
LAU HONG SHENG M031310005
NOR AIZA MOKETAR M031210003
NOR SYUHADA CHE KHALID M031220058
PREPARED FOR:
PROF. MADYA DR. LUKMAN SUKARMA
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Quality Function Deployment (QFD)
Introduction
Competition among the industries has become more intense in the global market
nowadays. Given the trend of business globalization, companies face challenges from both
national and international competitors. In order to pledge this threat, many of them focus on
searching for sustainable advantages. The survival of a company is heavily dependent on its
capacity to identify new customer requirements and to develop a new product (Shen, 2000).
In 1966, Yoji Akao introduced the concept of QFD in Japan. According to Akao, QFD is a
method to translate customer needs and requirements into the quality characteristics in order
to improve quality for an existing product to develop a new product that satisfy the customers.
Hence, this project describes how a quality plan can be determined for a shampoo product by
using Quality Function Deployment (QFD) technique.
House of Quality
The primary planning tool used in Quality Function Deployment (QFD) is the house of
quality. The house of quality interprets the voice of the customer into design requirements that
meet specific target values and matches that against how an organization will meet those
requirements. The structure of QFD is similar to a framework of a house, as can be seen in
Figure 1. The house of quality is therefore used as the planning tool for shampoo product.
Figure 1: House of Quality
Technical Descriptors
(Voice of the organization)
Prioritized Technical
Descriptors
Interrelationship
between
Technical Descriptors
Customer
Requirements
(Voice
of
the
Customer)
Prioritized
Customer
Requirements
Relationship between
Requirements and Descriptors
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For this project, the shampoo is the product for the Quality Function Deployment
(QFD). Below show the process to complete the QFD House of Quality.
Quality Function Deployment of Shampoo Product
1) List customer requirements and assign a weight indicating the relative
importance of each requirement in view of customers.
The customer demands for the shampoo are less chemicals, remove oil dirt, prevent
hair rough, balance hair, hair loss control, fragrance, easy rinse off, prevent dandruff, soften
hair, reasonable price, no waste, hygienic and easy to dispense. After listing the demands, the
customer assigns a weight indicating the relative importance of each demand. The ratings for
the weights are between 1 and 10, with 10 being the most important demand. Figure 2 shows
the customer demands with associated weights.
Figure 2: Customer demands with associated weights
Based on Figure 2, the customer would prefer less chemicals shampoo because to
limit exposure to harmful chemical contents. The most common are harsh detergents,
chemical fragrances and numerous irritating and carcinogenic compounds such as sodium
lauryl sulfate/sodium laureth sulfate, an irritant which can form carcinogenic nitrosamines,
DEA, TEA, and MEA which are hormone disruptors and can release carcinogenic
nitrosamines, quaternium-15, DMDM hydratoin which can release carcinogenic nitrosamines,
polyethylene glycol, an irritant, coal tar, a carcinogen, propylene glycol, a neurotoxin which
can cause dermatitis, liver and kidney damage, and EDTA, an irritant. Tear free shampoos
are made with a pH (acidity level) the same as a babys tears, which is why they are not sting.
However, a neutral pH is less irritating to the scalp and skin (EHANS, 2004). The best option
is to use a less toxic shampoo with a neutral pH. The shampoo should remove oil dirt
components in hair by regular cleaning. Oil dirt components make hair oily, dirty and
difficult to manage (Admin, 2013). Next, the shampoo should prevent hair rough, balance
hair, soften hair, prevent dandruff and hygenic. Dandruff could cause emotional distress to
consumer because the white flakes by dandruff that are easily visible in dark cloth (Kumari,
2012). The hair rough, balance hair and soften hair affect the esthetic of the hair (Mannino,
2013). Besides than functional parts of a shampoo, the customer also demand the
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attractiveness such as fragrances, reasonable price and easy to rinse off. The customer also
value the shampoo that is easy to dispense and no waste to achieve satisfaction.
2) List technical descriptors (quality characteristics) to derive measures to assure
that those customer requirements are satisfied.
After that, the Systems Engineering Department derive measures to assure that the
customers demands and company demands are satisfied. The quality characteristics for the
shampoo product are amount of chemicals, amount of waste, amount of pressure, amount of
effort, amount of pull-back, produce cost, develop time and selling price. Figure 3 shows the
list of quality characteristics.
Figure 3: List of Quality Characteristics
3) Develop relationship between customer requirements (the voice of customers)
and quality characteristics (the voice of company).
Next, the relationship between customer requirements and quality characteristics of
the shampoo product are developed. The relationship matrix is used to represent graphically
the degree of influence between each technical descriptor and each customer requirement. The
relationship is indicated as strong, medium and weak together with the associated amounts
and symbols as can be seen in Figure 4.
Figure 4: Relationship Matrix
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4) Develop interrelationship among the quality characteristics developed in point 2.
The roof of the house of quality, called the correlation matrix, is used to identify any
interrelationships between each of the technical descriptors. The correlation matrix is a
triangular table attached to the technical descriptors, as shown in Figure 5. Moreover, symbols
are used to describe the strength of the interrelationships. To simplify, a strong positive
interrelationship would be a nearly perfectly positive correlation whereas a strong negative
interrelationship would be a nearly perfectly negative correlation. The correlation matrix allows
the user to identify which technical descriptors support one another and which are in conflict.
Figure 5 shows the correlation matrix of shampoo product.
Figure 5: Correlation Matrix
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5) Conduct competitive assessment comparing your product with those of
competitors in view of customers.
After that, the competitive assessment of the shampoo product is conducted. The
competitive assessments are a pair of weighted tables that depict how competitive products
compare with current organization products. The competitive assessment tables are separated
into two categories, customer assessment and technical assessment, as shown in Figures 6 and
Figure 7. The customer competitive assessment makes up a block of columns corresponding
to each customer requirement in the house of quality on the right side of the relationship
matrix, as shown in Figure 6. The numbers 1 to 5 are listed in the competitive evaluation
column to indicate a rating of 1 for worst and 5 for best. Likewise, the customer competitive
assessment is a good way to determine if the customer requirements have been met and identify
areas to concentrate in the next design.
Figure 6: Customer Competitive Assessment
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6) Conduct competitive assessment comparing what your company does against
with those of competitors (in terms of the provision of quality characteristics).
The technical competitive assessment makes up a block of rows corresponding to
each technical descriptor in the house of quality beneath the relationship matrix, as shown in
Figure 7. After customer competitive assessment for the shampoo product has been
established, the products are then evaluated for each technical descriptor. Similar to the
customer competitive assessment, the test data are assigned to the numbers 1 to 5 which are
listed in the competitive evaluation row to indicate a rating, 1 for worst and 5 for best. Figure
7 shows the technical competitive assessment for the shampoo product. The technical
competitive assessment is often useful in uncovering gaps in engineering judgment. When a
technical descriptor directly relates to a customer requirement, a comparison is made between
the customers competitive evaluation and the objective measure ranking. Customer
requirements and technical descriptors that are strongly related should also exhibit a strong
relationship in their competitive assessments.
Figure 7: Technical Competitive Assessment
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7) Make a prioritization of customer requirements and list the first three customer
requirements worth to be considered.
The prioritized customer requirements make up a block of columns corresponding to
each customer requirement in the house of quality on the right side of the customer
competitive assessment. These prioritized customer requirements contain columns for
importance to customer, target value, scale-up factor, sales point, and an absolute weight.
Numbers 1 to 10 are listed in the importance to customer column to indicate a rating of 1 for
least important and 10 for very important. Figure 8 shows the prioritized customer
requirements for the shampoo product.
Figure 8: Prioritized Customer Requirements
8) Make a prioritization of technical descriptors (quality characteristics) and list
the first three quality characteristics worth to be considered.
The prioritized technical descriptors make up a block of rows corresponding to each
technical descriptor in the house of quality below the technical competitive assessment,
as shown in Figure 9. These prioritized technical descriptors contain degree of technical
difficulty, target value, and absolute and relative weights. The QFD team identifies technical
descriptors that are most needed to fulfil customer requirements and the need of improvement.
Figure 9 shows the prioritized technical descriptors. Thus, the overall house of quality for the
shampoo product is shown in Figure 10.
Figure 9: Prioritized Technical Descriptors
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9) Overall QFD House of Quality
The full overall QFD House of Quality of Shampoo product is shown in Figure 10
below. From the House of Quality, we can understand which quality characteristics are
important for the shampoo product. So, from the House of Quality shown in Figure 10, the
first three quality characteristics of shampoo product worth to be considered are the amount
of chemical, selling price and product cost.
Figure 10: The Overall House of Quality for The Shampoo Product
Conclusion
QFD is a method to translate customer needs and requirements into the quality
characteristics in order to improve quality for an existing product to develop a new product
that satisfy the customers. The house of quality interprets the voice of the customer into
design requirements that meet specific target values and matches that against how an
organization will meet those requirements. The customer demands for the shampoo are less
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chemicals, remove oil dirt, prevent hair rough, balance hair, hair loss control, fragrance, easy
rinse off, prevent dandruff, soften hair, reasonable price, no waste, hygienic and easy to
dispense. The quality characteristics for the shampoo product are amount of chemicals,
amount of waste, amount of pressure, amount of effort, amount of pull-back, produce cost,
develop time and selling price. The relationship between customer requirements and quality
characteristics of the shampoo product has shown the influence between each technical
descriptor and each customer requirement and indicated as strong, medium and weak. The roof
of the house of quality or correlation matrix is used to identify any interrelationships between
each of the technical descriptors. Then, the technical descriptors are arranged by priority based
on customer and competitors side. Therefore, the first three quality characteristics of shampoo
product should be prioritized are the amount of chemical, selling price and product cost.
References
Shen X.X.; Tan K.C.; Xie M. (2000). An Integrated Approach to InnovativeProduct
Development Using Kanos Model and QFD. European Journal ofInnovation
Management, Vol.3, No: 2 pp.91-99.
EHANS. (2004). Baby Care Starting Out Right. Environmental Health Association of Nova
Scotia. Retrieved from http://www.lesstoxicguide.ca/?fetch=babycare
Admin. (2013). Why You Should Use Organic Shampoo. CREATIVE MUSIC GADGETS.
Retrieved from http://brambos.com/why-you-should-use-organic-shampoo/
Kumari, K. (2012). Dandruff and Hair Loss. Buzzle. Retrieved from
http://www.buzzle.com/articles/dandruff-and-hair-loss.html
Mannino, B. (2013). 8 Homemade Hair Treatments. Womans Day. Retrieved from
http://www.womansday.com/style-beauty/beauty-tips-products/8-homemade-hair-
treatments-110251