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72 Cards in this Set
- Front
- Back
inbound activities
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revolve around materials mgmt:
anticipating mat reqs sourcing and obtaining mat intro mat into the org monitoring status of mat as a current asset |
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materials mgmt objectives:
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low costs
quality assurance support of other enterprise functions low lvl of tied-up capital high lvl of service |
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In most cases, materials make up over ___% of total costs
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50
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procurement
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activities assoc w/the acquisition of materials:
purchasing quality mgmt vendor relationships coordination w/other depts |
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receiving
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physical receipt of the purchased materials when they show up at your facility
data obtained is vital |
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quality assurance
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checks all inbound deliveries and samples materials to det vendor compliance to specifications
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JIT inventory control - history
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found by: W. edwards deming and Taiichi Ohno
Ohno developed Toyota Production System (TPS) w/JIT as core concept |
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JIT basics
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-materials are used until a pre-arranged order pt is reached (kanban)
-the req is com back to procurement which places a short lead time order (andon) -freq, small shipments arrive just in time to fill depleted materials no safety stock - every part counts |
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Benefits of JIT
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productivity improvements
decreased inventories reduced manuf cycle times lower costs |
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Challenges of JIT
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production scheduling
supplier capabilities logistics networks demand forecasting |
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Reduce JIT risk
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create partnership w/suppliers and implement complex Materials Requirements Planning (MRP) systmes
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MRP
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materials requirements planning
analyze inbound logistics challenges: productions scheduling inventory control and tracking demand analysis and forecasting financial risks general ledger reporting work in process tracking almost always connected/integrated into larger systems |
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outbound logistics
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linked to customer service and mkting
form of non-price competition |
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4 key dimensions of customer service
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time
dependability communications convenience |
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customer satisfaction
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focuses on customer themselves; on indiv customer expectations and perceptions
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customer success
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suppliers/vendors use their perf capabilities to enhance the success of their customers
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channel of distribution
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used to create service efficiencies
network of intermed that include: wholesalers, distributors, retailers |
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wholesaler
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selling and storing goods
extending credit assembling sorting make/break bulk |
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distributor
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mkts/sells merchandise to retailers, gen in lg quantities
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retailers
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purchase products to re-sell to ultimate consumers
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Voluntary Inter-Industry Communications Standards Committee
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QR and ECR for textile industry
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QR
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Quick Response
partnership where the manuf/supplier commits to meet specific perf criteria in return the retailer commits to providing solid demand data and pref treatment min stockouts for retailers and boosts sale of products for vendors |
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Successful QR depends on:
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shorter time horizons
real-time data transfers integrated logistics networks partnership creation and maintenance higher inventory velocity focus on quality |
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ECR
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Efficient Consumer Response
extensively consumer driven and heavily dependant on info systems to transmit demand data, esp from POS |
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DRP systems
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Distribution Requirments Planning
det product demand and use that info in supply chain outbound version of MRP effective at maintaining cust service lvl consistency |
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Strategic use of adv warehousing
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virtually all outbound systems and strategies are trying for uninterrupted flow of product
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corporate leadership and philosophies
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outbound strategies are risky and complex
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use fo inventory segmentation
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knowing and categorizing your stock keeping units (SKUs) is essential to successful operations
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outbound logistics capabilities are eval by:
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selling capabilities
sales perf avg lead time inventory maintained freq/order transmission stockouts response time from sales reps fill rate methods used to submit orders |
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inventory costs
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admin
insurances taxes shrinkage obsolescence capital storage and handling |
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Cycle stock
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stock depleted during a normal order cycle
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In process stock
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incomplete/in transit inventory
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safety stock
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held in adv of a seasonal demand
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speculative stock
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held as a hedge against price fluctuations
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dead stock
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inventory w/no apparent value
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promotional stock
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covers demand/stock assoc w/mkting
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benefits of carrying inventory:
purchase economies |
receiving lots in larger sizes reduces overall materials costs
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transportation savings
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lg loads are cheaper
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speculative purchasing
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buying to hedge against upward price fluctuations
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seasonal supply/demand
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especially factored into products w/ag supply chains
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maintenance of supply sources
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maintain a lvl flow of materials when ramp up is are long/supplier is small/specialized
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customer service/goods for resale
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I can provide order and demand change flexibility
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production savings
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easy to have long, inexpensive, production runs when I is allowed to build up
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stable employment
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I can be used to provide short term labor stability
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safety/contingency coverage
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order flexibility, covers defects, emergencies, etc.
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I carrying costs:
Capital (investment) costs |
assoc w/having capital invested in I often the lgest cost
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storage cost
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I/O costs, heating, electric, staffing
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service costs
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I and tax costs are accounted for here
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risk cost
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risk of economic changes, obsolescence, spoilage
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order costs
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assoc w/acquiring or ordering I: reviewing stock lvls, preparing/processing paperwork, processing receiving reports, checking stock pre-order
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setup costs
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inherent in retooling the storage/production line to fit diff items/stock
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expected stockout costs
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assoc w/running out of an item
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in-transit carrying costs
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cost of literally carrying I throughout the supply chain
delivery time costs, insurance |
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I mgmt benchmarks:
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customer satisfaction
need for backordering/expediting I turnover/velocity ratio of I held to sales (should decline as sales increase) |
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Approaches to I mgmt
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systemwide v single facility
dependent v indep demand push v pull -QR, ECR = pull -paperback books = push |
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ABC Analysis
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Wilfredo Pareto; 80% of value is achieved from %20 effort
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Inventory control is driven by:
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carrying costs - increase w/increase in I
order costs - decrease w/increase in I total cost curve - optimum low pt |
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EOQ
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Economic Order Quantity
det what order quantity min annual I costs and when to place each order |
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assumptions for EOQ
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demand constant
carry costs known order costs constant and fixed unit value known |
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Formula
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Square root (2PD)/CV
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P
D C V |
Ordering cost ($)
annual demand (units) annual I carry cost (%)-convert to DECIMAL value of I item ($)/unit ALWAYS ROUND UP TOTAL |
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Other EOQ Assumptions
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constant transport costs
no I in transit only a single product infinite planning horizon more effective when used on a single facility basis |
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EOQ can be adjusted for:
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in excess rates
demand and lead time length cost of I in transit uncertainty of demand private carriage modal selection vol transport rates I at multiple locations |
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Basic I control model: Reorder pt
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det reorder pt when:
demand known know exact order lead time |
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Reorder Point =
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Lead time x daily demand
= #units |
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Improve I mgmt:
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improved forecasting
adv order processing/I systems (DRP, MRP) implementation/improved use of I approaches (JIT, QR, ECR) |
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P
D C V |
Ordering cost ($)
annual demand (units) annual I carry cost (%)-convert to DECIMAL value of I item ($)/unit ALWAYS ROUND UP TOTAL |
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Other EOQ Assumptions
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constant transport costs
no I in transit only a single product infinite planning horizon more effective when used on a single facility basis |
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EOQ can be adjusted for:
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in excess rates
demand and lead time length cost of I in transit uncertainty of demand private carriage modal selection vol transport rates I at multiple locations |
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Basic I control model: Reorder pt
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det reorder pt when:
demand known know exact order lead time |
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Reorder Point =
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Lead time x daily demand
= #units |
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Improve I mgmt:
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improved forecasting
adv order processing/I systems (DRP, MRP) implementation/improved use of I approaches (JIT, QR, ECR) |