Friday, August 16, 2019

QFD


QFD provides a systematic approach towards prioritizing requirements of our customers, when to implement and why. QFD basically aims at planning and problem preventing technique.

History-
QFD stands for Quality Function Deployment which was developed by Prof. Yoji Akao in 1966. Mostly it was used in engineering field. It is defined as a “method to transform user demands into design quality to deploy the functions forming quality and to deploy methods for achieving the design quality and ultimately to specific elements of the manufacturing process”.
  
Objective-
The objectives of QFD are-
To understand
-          use of QFD design of product
-          methodology of QFD and House of quality.

QFD phases-
QFD level 1- system
Process definition-
1.       Collection of VOC
2.       Translating VOC into product specifications
3.       Competitive analysis
4.       Initial design concept- product performance and specification

QFD level2 – system
Product Development-
1.       The critical parts and assemblies are identified
2.       Critical part and assembly specs.
3.       Specification are then defined

QFD level3- component
Process development-
1.       Designed manufacturing and assembly processes
2.       Developed process flow
3.       Identified critical process characteristics

QFD level 4-
production process control
Process quality control-
1.       Process parameters are determined
2.       Process controls are developed and implemented
3.       Full production begins upon completion of process capability studies.

Steps to build the House of Quality in brief are-
1.       Identify your customer requirements and Prioritize customers
A structured list of requirements derived from the customer statements/ feedback.
2.       Identify relevant and measurable product characteristics to satisfy your customer requirements
3.       Planning matrix.
Illustrates customer perceptions observed in market surveys. It includes relative importance of customer requirements, company and competitor performance in meeting these requirements.
4.       Interrelationships or correlation matrix
It illustrates the QFD team’s perceptions of interrelationships between technical and customer requirements. An illustration using symbols or figures are recommended for appropriate scale analyses.
5.       Technical correlation (Roof) matrix
It is used to identify where technical requirements support or impede each other in the product design. It highlights innovation opportunities.
6.       Technical priorities, benchmarks and targets.
These are used to record the priorities assigned to technical requirements by the matrix. It evaluated degree of difficulty involved in developing each requirement.

Final output- a set of target values for each technical requirement to be met by the new design linked to requirements of customer.



Example-


Benefits of QFD-
-         The process is entirely focused on customer requirements
-         Encourages team efforts and acts as a team builder
-         Improves product and service quality
-         Minimizes costs on wastes






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About Me

Ms. Sushma Uttam Kanukale, working as Quality Manager and Medical Laboratory Technologist in Dubai.10+ years of professional experience. BSc. (Microbiology & Biochemistry), PG-Advanced MLT, PGDTQM, Internal Auditor for ISO 15189:2012, Coordinator, Implementer, Trainer, Author, Blogger, Passionate Healthcare Quality Proferssional. Strengths-Family, Smart work, self-motivation, dedication and learner. I am thankful to my family, friends and well-wishers in my life who has been supporting me for the maintenance and moderation of this website. Welcome to myqualitytools.blogspot.com. Enjoy reading!!