CIM Study Guide 2026

Time series analysis is a quantitative forecasting technique that uses historical data points, collected over time, to identify patterns, trends, and seasonal variations. By analyzing these past patterns, it estimates future demand for products. This method is effective for stable products with consistent sales histories.

An order acknowledgment is the supplier's formal response confirming they have received, reviewed, and accepted the terms of the buyer's purchase order.

GMROI (Gross Margin Return on Investment) measures how much gross margin is earned for every dollar invested in inventory, calculated as Gross Margin divided by Average Inventory Cost.

FIFO stands for First In, First Out, an inventory valuation and management method where the first goods purchased or produced are the first ones sold, used, or removed from inventory. This method is crucial for managing perishable goods or items with limited shelf lives, ensuring older stock is moved before it expires or becomes obsolete. It helps minimize waste and maintain product freshness.

A contract manufacturer produces goods according to the buyer's design, specifications, and quality standards, allowing buyers to outsource production without owning manufacturing assets.

Continuous improvement is fundamental to professional practice in vendor-managed inventory, involving regular evaluation, feedback integration, and process enhancement to maintain high standards.