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Quantity and Inventory (Determining order quantities and inventory levels,…
Quantity and Inventory
Quantity and timing issues
Quantity and Delivery
Time-Based Strategies
Factors
Forecasts
Costs
Availability
Price-Volume Relationships
Shortages
Forecasting
Techniques
Quantititave Forecasting
Qualitative Forecasting
Collaborative Planning, Forecasting and Replenishment (CPFR)
Determining order quantities and inventory levels
Fixed-Quantity Models
Fixed-Period Models
Probabilistic Models ans Service Coverage
Bufferr of Safety Stocks and Service Levels
Planning Requirements and ressources
Material Requirements Planning (MRP)
Inputs
Master production schedule
BOM
Inventory record
MRP Lot Sizing
Lot-for-lot
Economic order quantity (EOQ)
Least-total-cost (LTC)
Least-unit-cost
Manufacturing Resource Planning (MRP II)
Enterprise Resource Planning (ERP) Systems
Functions and forms of Inventories
Functions
To provide and maintain good customer service
To smooth the flow of goods through the productive process
To provide protection against the uncertainties of supply and demand
To obtain a reasonable utilization of people and equipment
Forms
Raw materials, purchased parts and packaging
Work-in-process
finished goods
MRO items
Resale items
Inventory management
Vendor or Supllier-Managed Inventory (VMI/SMI)
Lean Supply, JIT, and Kanban Systems
Determining Quantity of Services
Agregating Demand
Managing Consumption
Dimensions of Services and Quantity Decisions
Reference :
Purchasing and Supply Management
, Johnson, Leenders, Flynn
