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ISQA 479 MRP Quality Control
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Materials Requirements Planning Bill of Material List of all parts necessary to make ONE BofM X Order = GROSS Req’mts Subtract Inventory Subtract On Order NET Req’mts Net Req’mts = Exception Report What to BUY, What to MAKE Offset NR by Lead Time: WHEN to Order
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MRP Concepts Multiple Parents Multiple Uses of One Part in BofM System Nervousness Exception Reports
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MRP Concepts Lot-Sizing Techniques Lot-for Lot EOQ/EPQ Periodic Order Quantity Fixed Interval, Variable Quantity EOQ/Avg Use Fixed Order Quantity Variable Interval, Fixed Quantity Standard Package Quantities Price Break Levels EOQ
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Quality How would you define ‘Quality’?
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Quality Definitions Manufacturing-Based - Philip Crosby “Quality means conformance to requirements” Value-Based - Feigenbaum “Quality means best for certain customer conditions. These conditions are (a) the actual use, and (b) the selling price of the product”
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Philip Crosby Quality is Free, pp. 15-16 Quality has much in common with sex. Everyone is for it (under certain conditions, of course). Everyone feels they understand it (even though they wouldn’t want to explain it). Everyone thinks execution is only a matter of following natural inclinations. (After all, we do get along somehow). And, of course most people feel that all problems in these areas are caused by other people. (If only they would take time to do things right).
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Quality Definitions Customer-Based - Juran “Quality is fitness for use” Customer-Based - AT&T Quality is meeting customer expectations.”
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Quality Is Quality Free? Can We Achieve 100% Quality?
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Shingo Difference Between Errors and Defects Errors Cause Defects Defects Occur Because of Errors Three Types of Inspection Self-Inspection Successive Checks - Next Person Source Inspection (Check for Errors that WILL cause Defects Identify Errors, Fail Safe the Process
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Control Charts Processes Have Natural Variation Fundamental Question: Natural Variation or Process Change? That is what Statistical Process Control is All About Key Assumptions: Sample is RANDOMLY selected Defects are randomly distributed throughout the lot
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Sampling For Defects (What is Quality of Lot?) For Conformance to Specification (No More Than X% Defective)
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Control Chart Types Attribute Charts (things counted) P-chart: Proportion Defective C-chart: Number of Defects Focus is on PRODUCT output Variable Charts X-chart: Sample Means R-chart: Range Means Focus in on PROCESS, itself
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Control Chart Problem Indicators One Data Point Outside Control Limit Two Data Points in Zone Three Five Consecutive Data Points on One Side of the Mean Trend - Five Successive Points in a Trend Erratic Behavior Sudden Change in Behavior
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ISQA 479 Strategic Alliances Procurement and Outsourcing
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Strategic Planning Mission Statement Vision Statement Strategies Long-Term Action Plan Commits Organizational Resources Creates Competitive Advantage Performance Measures
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Characteristics of Supplier Alliances Operational Strategic 3rd Party Alliances
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Criticality Grid: Managerial Objectives High Patent Look Ahead Strategic Alliances M Prop Tech A R K E Market Driven Market Driven T Min Admin Cost Supply Continuity Ind Std Automate Operational Alliance Commodity Low Low High INTERNAL Volume, Importance Volume, Pervasive
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Supplier Relationships Risk and Numbers of Suppliers Industry Standard Custom Supplier Performance Managing Supplier Relationships Interdependencies Motivation Reward Power Punishment Power
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Supplier Relationship Goals Long-term Collaborative Early Supplier Involvement Growth Capabilities Create Competitive Advantage
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Make/Buy Products Never Make Products Always Make In Between Products
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Make/Buy Industry Standards, Proprietary Products and Make/Buy Procurement from Suppliers Procurement by Manufacture Fluid Decision Revisit at Regular Intervals As Economic Conditions Change As Internal Conditions Change Always Maintain Internal Capability
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Reasons to Make Quantities Too Small Quality Too Critical Timing Too Critical Trade Secrets (for a time) Cheaper Keep Crew Busy Avoid Sole Source (perhaps) Union Shop
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Reasons to Buy Quantities Too Large Supplier Quality Acceptable Have Sufficient Lead Time Lack of Necessary Competencies Lack of Capacity Cheaper Reciprocity
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Outsourcing Strategic Decision Activity is Not Core Competency Will, In Future Completely Depend on Suppliers Will No Longer Maintain Internal Capability
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Outsourcing Strategies When to Consider Outsourcing? Why? Outsourcing Risks Risk Mitigation Strategies
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Smith Group Case
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Chapter 8, Question 1 Logistics Strategy Internal Logistics Expertise Acquire Logistics Company Internal Strategy, External Suppliers 3PL Strategy
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Chapter 8, Question 3 Quick Response Continuous Replenishment VMI
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Chapter 8, Question 6 Why did VMI at Spartan Fail? How Should it Work?
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