Final answer:
The practice not affiliated with JIT/lean systems among the given options is 'Fewer orders from suppliers need to be processed'. JIT/lean systems may increase the frequency of supplier orders due to reduced inventory levels and the need for quick replenishment.
Step-by-step explanation:
The question pertains to the practices not affiliated with the implementation of JIT/lean systems which aim to streamline production processes. Among the listed options, fewer orders from suppliers need to be processed is not something directly pursued as a goal in JIT/lean systems. These systems actually often lead to an increase in the frequency of supplier orders since they reduce inventory levels and require rapid replenishment to avoid production delays.
JIT/lean systems focus on reducing inventories and space requirements, improving quality, and fostering closer relationships with suppliers to ensure timely and defect-free deliveries. However, rather than processing fewer orders from suppliers, companies may end up dealing with more orders that are smaller in size to maintain the lean inventory approach.