Transcript Quality Control

Quality Control
Quality Control
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Quality Control is the collection of duties which
are performed to ensure that the product
produced conforms to laid down standards.
Decisions need to be made on the method of
inspection and how quality is to be maintained.
Involves the setting of standards, monitoring the
standards, assessing and testing.
Quality control
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The quality specification will be set at the design
stage.
Decisions must be made on the method of
inspection and how quality is to be maintained,
though the process will involve:
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Setting of standards which all products must
attain.
Monitoring the standard of the products
produced.
Assessing and testing the materials used.
All products produced must normally
satisfy three criteria:
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They are fit for a defined purpose.
That they have the ability to perform as required
for a reasonable period of time.
That they conform to a specified standard.
Quality may be judged by:
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Appearance.
Performance.
Dimensional exactness.
Structural soundness.
Quality Assurance
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Quality Assurance is the process of ensuring
standards are achieved and maintained
throughout production and delivery.
It means ensuring that the product satisfies
certain criteria, these are: that they are fit for
a defined purpose and that they conform to a
specified standard.
Quality Assurance
This is the assurance that a product
satisfies three criteria:
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That it is fit for a defined purpose.
It has the ability to perform as required for a
reasonable period of time.
That it conforms to a specified standard.
Achieving quality objectives
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Setting of Standards
Monitoring
Assessment
Setting of Standards
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These would be laid down in the
specification, though these must conform to
planning, public health and construction
regulations, British Standard (BS) Codes of
Practice and any other regulations and
byelaws
Monitoring
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This would be carried out by the client's
representative and external agents, for
example, the Building Control Officer.
It would involve site inspections and the use
of quality control forms.
It would also ensure that work is carried out
according to the specification and that all
materials delivered to site are of the required
standard and not damaged
Assessment
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Ensuring conformity
Use of check lists
Testing of materials.
Quality must consider:
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Performance – Considers what it must do.
Reliability – It must be able to perform for a reasonable period
of time without failure.
Conformance – This is the degree to which specification is
met.
Durability – This is the length of time a product lasts before it
needs to be replaced.
Serviceability – looks at the service that the product gives, the
amount of repair that may be needed and the time taken to
repair.
Aesthetics – This is how the product looks and feels.
Perceived quality – This can be subjective judgment that
results from image.
Quality Management System
An effective Quality Management System will
improve business performance because:
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customers requirements will be understood
The way to satisfy their requirements will be
known
understand how to organise and control business
to minimise errors and waste
improve profitability and competitiveness.
The benefits a Quality Management
System (QMS)
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Improved customer satisfaction
Elimination of errors and waste
Reduced operating costs
Increased motivation and commitment from
employees
Increased profitability and competitiveness.
The system must:
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Be based on understanding your business,
your customers and their requirements
Be management led
Involve all employees in its implementation
Focus on preventing errors rather than
merely detecting and correcting them
Be able to evolve as the company changes.
Benefits of a QMS
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Identify the requirements of its customers
Ensure it is able to supply products and
services in accordance with those
requirements
Ensure delivered products conform to
those requirements.
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Satisfied and loyal customers due to goods or
services always being produced according to
requirements
Reduced operating costs as waste is eliminated or
reduced and efficiency increased as a result of
eliminating non-conformance.
Improved competitiveness and profitability as
operating costs are reduced
Improved morale as employees develop greater
understanding of the business, are able to work
efficiently, and are involved managing their working
environment.
Benefits of External Assessment
and Registration
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It provides evidence to customers that the QMS
has been independently assessed as effective.
This is increasingly important as a marketing
edge over competitors.
It avoids duplication of customer assessments.
Most customers accept and recognise ISO9000
approval.
It provides evidence of a responsible attitude to
quality, and to product and service liability
requirements.