CTD 461 Lecture 11: CTD 461 Chapter 11 Notes

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Clothing, Textiles and Interior Design
CTD 461

CTD 461 Chapter 11 Notes Inspecting Products Determine When a Product Meets Standards and Specifications • A in-depth understanding of nature requirements and expectations of product and target market • Key to determining if product meets expectations is inspection and evaluation Product Inspection/Audit • Implies a search for nonadherence to characteristics, dimensions, and other required parameters that can be detected with the eye and the use of some simple measuring device, such as a tape measure, ruler, or template • Occurs at different times in production Inspection Specs • Describe procedures and stages of production when inspection should occur • Written specs and standards are measures against which products are judged in inspection Inspector Training • Inspectors: examine a product, material, component, process to determine if it conforms to standards/specs • Good vision, color perception, attention to detail, thoroughness, self- direction, people skills, math, interest in maintaining quality, communication skills • Conformance: product meets requirements in terms of specs and standards, within acceptable quality limits • Nonconforming: does not meet specs and standards ➢ Misinterpretation of standards ➢ Poorly maintained machines ➢ Incorrect settings • Reworked or unsalvageable (investment lost) Principle of Inspection • So that problems, inadequacies in portion or materials, or inferior materials or components can be identified, corrected, or replaces ➢ Individual product quality ➢ Key ingredient to quality assurance, continuous improvement, zero defect goals Materials Inspection • Identifies the presence of defects with the materials that are to be combined in a product • Save time/labor/resources when defective materials are identified before production • Materials: adherence to length, width, quality, and uniformity specs • LxW, Uniformity of material • Inspect at arrival Source Inspection • Inspection of materials, components, products, or documents at the supplier’s facility by an individual not employed by the supplier • Also refers to results to specific testing before production, technical report • Source inspectors – work with suppliers, train inspectors, interpret data for quality improvement, check documents, keep buyers informed if problems Receiving Inspection • Why? • If done upon receipt impact can be better controlled for manufacturing, quality, and deadlines In-Process/Du-Pro Inspection • Any visual evaluation or check of parts, components, or materials during production • During conversion of materials to product • Parts inspected before assembled to determine if they meet specs • Many times in production at quality checkpoints – prevent further investment performed if component is inadequate • Based on Deming and Juran’s work “Quality cannot be inspected into finished products” Production Quality and Rate Separate • Conflict in rewards being based on production rates? • To avoid conflict of interest: 1. Each operation has written specs for requirements to be met; clearly defined quality level 2. Operators know what is expected and how work is evaluated; correct language, correct measurement system 3. Reward structure emphasize meting expectations rather than penalizing for failure 4. Inspection process feed information back to correct area so defects identified and corrected (process improvement) Types of Du-Pro Inspections • Spreading – another visual check hat also manipulates fabric so other characteristics are evident • 100% inspection – all components ➢ High cost, low risk of inferior product • Random sampling – randomly selected items inspected through process ➢ Cost lower, greater risk of inferior product • After finishing steps High Cost Inspection Shortcuts • Rework • Seconds • Damaged components • Missed deadlines • Poor-quality merchandise Vendor Inspection • Ensures merchandise in production will meet standards of buyer; available on time • Sufficient documentation by producer exists • Meet quantity needed – facility, equipment condition, cleanliness, pattern making/design areas, annual production rates and correct customers • Evaluate contractor’s current practices at their facility • Evaluate standard allowed minutes and hours • Planned/scheduled or unscheduled /surprise • Occurs before signing contract to determine if legal agreement is possible • Standard allowed minute (SAM): a unit of measure for determining the time required for an operation and is the basis for production standards • Standard allowed hour (SAH): is used when costing in dozens instead of individual units and is converted form SAM • Vendor inspections gather information for product development and timelines • Exclusivity: new product will be produced for retailer only for specified length of time or specified number of seasons • Prevents vendor from charging retailer for new product development costs and then selling product to competitors before original retailer has earned reasonable profit Product Inspection • Final inspection: after product is finished, ensures product meets standards ➢ 100% (sometimes not enough Du-Pro) or random sample (good enough Du-Pro built
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