Indirect stock refers to items that are necessary for the operation of the manufacturing process but are not incorporated into the finished product. Examples include maintenance supplies, office consumables, and tools.
In whole-life asset management, indirect stock management ensures that essential operational items are available without tying up excessive capital in inventory that doesn't contribute directly to production output.

ABC classifications are applied to stock and its management is based loosely on the Pareto princi-ple, better known as the 80/20 rule.
The likely outcome of analysis of inventory (value importance):
- Category A - about 20% of the stock items account for about 80% of the total inventory value. Items in category A have the highest value.
- Category B - about 30% of items account for about 15% of total inventory value
- Category C - the remaining 50% of items account for 5% of the total inventory value Reference: CIPS study guide page 91-95 LO 2, AC 2.1

Variable periodic reviews enable ATT to manage seasonal goods effectively by adjusting ordering based on:
* Lead times and sales volume: Classifying products by these factors helps in planning, aligning with varying supplier delivery times and unpredictable sales demand.
Implementing a JIT or MRP system would require more sophisticated management tools, making option C the most feasible. This method aligns with whole-life asset management by supporting efficient inventory planning while minimizing stockouts or overstock situations.

Fixed-Time Period System (or Periodic Review system) is the inventory management system in which inventory is checked in fixed time periods, T, and the quantity ordered varies. The system also contains a target inventory level, R, which is restored when order received. The order quantity is calculated as:
Q = R - IP
where: Q = order quantity
R = target inventory level
IP = inventory position
Inventory position (IP) is equal to inventory on-hand plus quantity on order minus backorder (if any) The order quantity varies because the inventory position at each review point differs from each other.
Diagram Description automatically generated with medium confidence

LO 2, AC 2.3