Transcript GCSe textiles ppt3 specifications

SPECIFICATIONS
There are three types of specification
DESIGN SPECIFICATION
Create from the
design brief after
research has been
carried out.
 Sets out the essential
and desirable
criteria for the
design.
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PRODUCT SPECIFICATION
Drawn up once a
decision has been
made about which
proposals to develop
further.
 Identifies the
materials and
equipment needed to
make the product in
the prototype stage.
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MANUFACTURING SPECIFICATION
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Produced after the
product has undergone
final modifications
Provides
comprehensive
materials and
equipment lists
Identifies all the tasks
that need to be
completed in sequence
to manufacture the
product.
SPECIFICATION CONSIDERATIONS
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The following elements need to be considered when
producing a specification:
Form-what shape should the product be?
Function-what does the product need to do?
User requirements- what does the target market
need/want?
Performance requirements- what properties does the
product need to do its job?
Materials and components- what will the product be
made from?
Scales of production- how many do you need to produce?
Budget- how much money is available for materials and
production?
Sustainability- how can the products impact on the
environment be reduced?
DESIGN SPECIFICATION
Your design specification will normally ..............
 Be a list of bullet points
 Provide guidelines to help you focus your
design ideas
 Include all the key points from the brief
 Take into account the findings of your
research
 List all the essential criteria you must include
in your designs
 Include desirable criteria you would like to
include in your designs if possible
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COPYRIGHT OF DESIGNS
In textiles and the fashion industries designs are
sometimes copied. Copyright, patents and
registered designs are just some ways in which a
designer is protected.
 Relevant Acts of Parliament include.............
 Copyright Designs and patents Act 1988.
 Trade Marks Act 1994
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THE PRODUCT SPECIFICATION
The product specification contains all the
instructions and information needed to produce a
prototype of the product.
 It needs to be very clear. Ask yourself-could
someone else follow instructions ad make the
prototype if they wanted to?
 The product specification is also used to calculate
the final cost of the product, so the information
must be accurate.
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A PRODUCT SPECIFICATION INCLUDES
A working drawing of the product in black and
white showing front and back vie measurement
details, exploded drawings, highlighting key
details, details of seams,
 A written description including components
and fabrics, quantities and amounts.
 Samples of fabrics, components and colours
 Sizing details of all different elements
 Appropriate user instructions and aftercare
information.
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INDUSTRY SPECIFICATION
In industry the product and manufacturing
specifications incorporate a.....
 Fabric specification –type, weight, colour,
fastness, abrasion, resistance, feel/texture
 Garment specification- style, size, dimensions,
colours, types of fabrics.
 Component specification- fastenings,
interlining, zips, fastenings.
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MANUFACTURING SPECIFICATION
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The manufacturing
specification is produced after
the prototype has been made
and incorporates any final
adjustments or modifications.
It provides a detailed set of
guidelines including written
instructions, diagrams and flow
charts, that should enable the
manufacturer to make the
product exactly as the designer
envisaged.
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A typical manufacturing
specification might include
A list of materials and
components
A list of tools and equipment
Detailed plan of work as a flow
chart
Set time lines and guides for
each stage of manufacture
Appropriate quality control
checks
Details of the critical points in
the making process
A list of possible problems and
solutions
Correct pattern annotation.
FLOW CHART