An automated storage/retrieval system (AS/RS) can be defined as a storage system under which a defined degree of automation is to be implemented to ensure precision accuracy and speed in performing storage and retrieval operations. These automated storage and mechanized systems eliminate human intervention in performing basic sets of operations that includes:

• Removal of an item from a storage location automatically
• Transferring the above item to a specific processing or interface point
• After receiving an item from a processing or interface point, it is automatically stored at a predetermined location.

Objectives of AS/RS:

• Increasing the storage capacity
• Increasing the stock rotation
• Utilization of maximum floor space
• Recovering the space for manufacturing facilities
• Customer service to be improved
• Control over inventories to be improved
• Ensuring safety in storage function
• Increasing the labour productivity in storage function
• Reducing labour cost in storage operation
• Reducing pilferage and improving security

Types of AS/RS:

• Unit Load AS/RS
• Mini Load AS/RS
• Deep-lane AS/RS
• Man-on-board AS/RS
• Automated Item Retrieval System