Home > New warehouse control systems provides synchronised pick, pack and ship omni-channel fulfilment

New warehouse control systems provides synchronised pick, pack and ship omni-channel fulfilment

Editorial
article image A true Tier-1 WCS must be equipped to handle 2D barcode and RFID data for individual unique SKU track and trace requirements

Multi-channel order fulfilment or omni-channel fulfilment is increasingly becoming the norm for manufacturers, retail suppliers and retailers to fulfil a wide variety of order requirements ranging from single-line orders to full-trailer shipments. Operations therefore, need to be more efficient and flexible to satisfy the increasing variety of order sizes, by featuring integrated pick, pack and ship order fulfilment processes with intelligent automation.

Omni-channel fulfilment is the ability to process orders within the same operation from multiple sales channels: internet/direct to consumer, speciality boutique stores, direct to big box retailers, and to other distributors. To provide this flexibility, an operation needs the right design, processes, and technologies to deliver this critical business requirement. Continual growth in internet fulfilment with instant mobile device order placement, and same-day customer shipment expectations, leads to distribution operations needing to pick, pack and ship in 2-4 hours or less, a fraction of the time compared to the current 8-hour shipment window norms.

Order fulfilment operations are struggling to find the proper balance of picking, packing and shipping technologies with best practices when implementing lean omni-channel fulfilment operations. Successful operations must process a mix of LTL (less than truckload) shipments with full-pallet/mixed-case-pallet orders, be able to fluid-load direct to the trailer, and balance the complexities compounded by the growing demand for combined split-case and mixed-case store and distribution centre orders. Retailers’ specific shipment compliance labelling and order shipment documentation requirements and manifesting rules further complicate the order mix. 

Internet fulfilment featuring seasonal spikes, and continuous order volume growth driven by new item releases, create further challenges for defining and developing the processes and software requirements of a profitable operation. Thousands of orders per hour of single-item and multi-SKU orders, a wide variety of product cubes, and the customer-driven demand for the lowest cost transportation methods needed to ship direct-to-consumer orders, result in bottlenecks for traditional distribution operations.

Omni-channel order fulfilment requires a detailed plan and roadmap that considers all of the dynamics required to balance workloads and efficiently process orders in a parallel simultaneous pick and pack operation for each unique order fulfilment channel. Order release becomes the throttle of the operation and requires the right software algorithms to intelligently manage the order mix to meet customer type and delivery time windows, and ensure a continuous order flow to avoid bottlenecks and obtain optimum throughput across the pick, pack, and ship processes.

Key requirements include a proper order fulfilment design incorporating SKU slotting based on the mix of orders and material storage equipment/storage space; speed, efficiency and accuracy in picking to fill orders and coordinate and move labour to the work zones based on the current order wave volume; scalable design to meet the company’s five-year growth projections and business strategies; design based on lean low-touch processes to lower current and future labour requirements; and incorporate proven processes enhanced by the latest automation technologies to lower implementation risk, improve accuracy and customer satisfaction, and drive higher operational profitability. 

The challenge lies in meeting the above requirements within the typical two- to three-year ROI payback period for the typical corporation within the United States. The design requires a road map to include a thorough comparison of current processes with the new processes, and exception handling solutions focused on pinpointing major bottlenecks in the current DC operation. ROI should be shown on total cost of labour and ownership viewed within two-, three- and five-year windows.

Once the design is solidified, it should be modelled and simulated to ensure the new design is fully vetted prior to implementation. Only then can one objectively move to the selection of the right blend of automation technologies to enhance the processes and implement a lean, automated pick, pack, and ship order fulfilment operation.

What best orchestrates omni-channel order fulfilment?

A good design needs the right software to manage the order-fulfilment process. Do current-generation enterprise resource planning (ERP) and warehouse management systems (WMS) provide the tools to perform the real-time execution and demands of an automated omni-channel fulfilment operation? Core strengths of an ERP and a WMS are managing receiving, inspection, inventory and replenishment within the warehouse or distribution centre. The software needs for omni-channel pick, pack and ship processes require order release, labour balancing and management, and managing and executing material handling automation technologies. The software requires blending real-time control, optimisation and execution logic to process the variety of full-pallet, mixed-case-pallet, and split-case-item order fulfilment requirements.

Tier-1 WCS for Pick, Pack and Ship Order Fulfilment

The monopoly of WMS for managing sophisticated, automated order fulfilment is now undergoing a radical shift. Emerging as the leading solution for omni-channel order fulfilment are Tier-I warehouse control systems that include automation components and a highly scalable software architecture designed to manage real-time order processing and control decisions. A Tier-1 WCS software platform moves well beyond the traditional WCS duties, such as middleware for the interfaces between the WMS/ERP and ASRS, conveyor, sorter controls and floor level PLCs supervisory control. The Tier-1 WCS expands the definition of WCS, providing advanced picking automation and functionality developed specifically to provide higher performance order fulfilment process automation.

A Tier-I WCS must contain software automation modules developed to balance order release and work flow across picking, packing and shipping processes. It is more cost effective to fine-tune a WCS to the specific processes such as speciality picking/packing rules for fragile items, providing gift wrapping for an internet order, and optimising the automation investment to specific business needs. Balancing the fulfilment business requirements, managing material handling systems, robots, and other complex automation technologies is the driving force behind the emergence and growth of Tier-1 WCS for omni-channel fulfilment.

Tier-1 WCS contains all the traditional functionality of the WCS equipment control and supervision with several enhanced software automation modules that can be selected based on the design requirements to manage and optimise pick, pack and ship order fulfilment. Available modules include order release, order balancing, wave creation, cartonisation, voice picking, pick to light, print and apply labelling and pack/ship automation. Tier-1 WCS provides a more cost effective and flexible order fulfilment platform for managing packing and shipping because the software is designed to control the entire order fulfilment operation in a singular, continuous operation. This provides superior functionality, and enables high-volume operations to achieve higher throughput, efficiency, and superior performance.

To meet the definition of a Tier-1 WCS, the software must be able to effectively manage the entire order fulfilment process. 

Key functional requirements:

Provide an order fulfilment automation platform that controls and operates as a continuous-process that integrates and optimises picking through shipping in real-time;

Contain all the automation components fully integrated into one software platform including modules for controlling and managing picking, packing and shipping;

Have a database architecture built to manage SKU Plus records for supporting serialised track-and-trace of both linear and 2D barcodes; 

Scalability to operate one or more pick-pack-ship lines within a distribution centre (DC), as well as multiple additional pick-pack-ship lines in multiple locations external to the DC simultaneously.

To better visualise what a Tier-1 warehouse control system for omni-channel fulfilment would encompass, we will reference the functionality of Real-Time Distribution System (RDS) developed by The Numina Group. This system closely approximates the functionality defined.

Continuous-process, with real-time functionality

Pick, pack and ship processes utilise an arsenal of automatic identification and data capture (AIDC) technology, such as barcode scanners, optical character recognition (OCR) and radio-frequency identification (RFID) to efficiently monitor the flow of goods through picking, sortation, conveying, scales, dimensioning systems, print and apply label applicators, packaging, robotics and other automatic machinery. These units need to capture and relay data to and from the WCS and other material handling equipment (MHE) in the system. In high-volume, high-speed distribution centres this transmitted data can represent millions of process transactions per hour. Only a Tier-1 WCS, which encompasses all of the pick-pack-ship processes within its functionality, and controlled as if it is one unified machine with real-time functionality – like RDS – can effectively execute these throughput processes with the most efficient cycle times.

To ensure rapid processing speeds, RDS contains a control language called Trak, which is a versatile multi-function, event-based control engine that performs real-time controls at speeds in the range of 100 microseconds, significantly outperforming PLCs. The real-time control tasks are managed in its Linux operating system, deployed on an industrial hardened PC-based controller using a wide variety of industry standard I/O devices, controlled and managed over an Ethernet control network. 

Fully-integrated processes and automation 

Most WMS solutions execute control functions by communicating with separate warehouse control equipment and PLCs to control the material handling functions of each respective piece of equipment. In effect, this produces a control structure made up of islands of automation – multiple control entities, external from the primary control system. For speed of process time, requirements definition and system simplicity, this is a terrible model for the highly-complex integrated process controls needed for pick, pack and ship omni-channel order processing.

A fully-integrated software and control platform is a much more efficient automation architecture for complex order fulfilment requirements. Tier-1 WCS automation architecture is distinctively characterised by its unique continuity, by providing maximum transparency at all levels, and designed with the tools to reduce time and costs for implementing interfacing requirements to the ERP/WMS. Its influence should cover everything from the field level and production control level, to diagnostics and reporting. It also provides maximum interoperability, including everything from the controller, HMI and drives, to the process control system. Tier-1 WCS fully integrates control and process management to reduce the complexity of the automation solution, and incorporates a redundant architecture, which significantly lowers the risks of single point of failure.

Real-Time Distribution System WCS incorporates fully-integrated software and control architecture for automating the requirements of omni-channel pick-pack-ship order fulfilment. It provides a family of pre-developed control functions (modules) for many functions including: voice and pick to light, automated cross docking, wave order release and optimisation, dynamic slotting, carton zone routing, conveyor control, high-speed sortation controls, weigh-cube/dimension in-line automation; cartonisation, print and apply labelling, literature insertion, vision capture and audit/inspection, order validation, and data tracking.

The application modules use the same inter-process data messaging tool to interact between the system’s real-time control and an Oracle SQL database. The fusion of these functions into one system has a number of advantages, such as lower engineering costs, higher system performance, elimination of time-critical interfaces between individual components, and simple, uniform and transparent programming and diagnostics for the entire process. 

The focus of fully-integrated automation – such as can be found in a true Tier-1 WCS, like RDS – is placed on a simple and flexible solution for numerous motion control tasks involved with complex picking, packing and shipping requirements. As a composite system, fully-integrated automation brings high-speed distribution centres a new and unparalleled level of efficiency in picking, packing, and shipping throughput, coupled with lowered operating costs, and improved system availability.

Track and trace SKU serialisation capture

The need to track unique IDs throughout the supply chain is a rapidly emerging requirement for manufacturers, retailers and distributors. Consider the demands of electronics and computer distribution channels, where a warranty begins at shipment to the consumer or business client. The shipment requires both SKU and serial number capture for each individual product such as TVs, home theatre systems, network switches and printers, to be tied to the customer warranty and the tracking and reporting of product order shipments. High-volume operations require high-speed camera-based scanning, integrated with automated labelling to efficiently track and trace the shipments. 

New regulations from the Food and Drug Administration (FDA) for both food and pharmaceutical sectors are designed to ensure product safety and stringent supply chain track and trace requirements. This places greater requirements for real-time data capture of SKU lot codes, and soon, full serialisation traceability of product movement across the entire supply chain.

FDA’s pending Track-and-Trace mandates for the distribution of pharmaceutical pallet, mixed-case and split-case product serialisation require changes to current product labelling and barcode requirements. A Standardised Numerical Identifier (SNI) will be required to be printed on item-level packages. The FDA’s SNI guidance prescribes an identifier that contains the National Drug Code, and a second 20-digit alphanumeric identifier that would be unique to a drug package. The SNI would be printed in a two-dimensional (2D) data matrix barcode, or alternately a radiofrequency identification (RFID) tag, on the immediate package as it goes down the packaging line.

Track and trace is essentially a collection of tools employed to make sure regulators and companies can determine the authenticity, identity and whereabouts of a particular product. Under an ideal system, regulators would be able to track where a product is going in the supply chain and trace where it has been.

Not all WMS and WCS systems have the ability to handle the large database of SKUs, plus unique ID demands of track and trace requirements. Very few have the ability to handle the large volume of additional data capture requirements in the food and pharmaceutical industries. This is where a true Tier-1 WCS provides the needed functionality to meet today’s requirements, and future-proof for pending changes in product track and trace requirements. 

A true Tier-1 WCS must be equipped to handle 2D barcode and RFID data for individual unique SKU track and trace requirements. The Numina Group’s Tier-1 example, Real-Time Distribution System has virtually unlimited tracking and data storage functionality. Through its data field-linked database design, it supports both a local and distributed database with large data elements, images and blobs for order/SKU data tracking requirements. Fields have the capability to link 128 alphanumeric characters or more for ID and track and trace requirements. 

An Oracle database allows RDS to provide speed and flexibility, along with industry standard interface tools, to seamlessly integrate to all existing and new ERP/WMS Systems.

The ability to process unique IDs and track and trace data is becoming more critical in omni-channel distribution. Tracking and traceability will be needed across wider product categories: consumer goods, electronics, nutritional supplements, health and beauty items and speciality foods, all of which are experiencing increasing track and trace requirements.

System scalability

Tier-1 WCS architecture based on open platform standards provides Google-like scalability, with true real-time execution and control decisions. Couple this platform with industry expertise and a full family of pre-developed automation modules, and Tier-1 WCS becomes the choice for gaining superior functionality in omni-channel order fulfilment operations. Tier-1 WCS can integrate single, or multiple operations within a single distribution facility, as well as operate at remote or multiple locations. Increasingly, retailers and retail suppliers need regional distribution facilities to facilitate localised shipments to obtain faster next day direct-to-consumer delivery at the lowest cost of transportation and labour costs. Some multi-national firms require order fulfilment operations to support pick-pack-ship operation throughout North America, Europe and across sites in the Far East and Australia.

The ability to perform those functions is a requirement for a Tier-1 WCS. RDS incorporates this functionality, and can manage distribution automation with distributed real-time control unified to a central server or cloud server for consolidating pick-pack-ship order data from multiple distribution locations. Its Linux architecture easily scales and supports both virtual servers and cloud platforms.

Faster, leaner processes

The latest generation of highly versatile and scalable Tier-1 WCS, as exemplified in Numina’s Real-Time Distribution System, presents a new paradigm in operational efficiency for picking, packing and shipping operations in omni-channel fulfilment. Supply chain and distribution executives looking to deploy superior, leaner, low-touch automated fulfilment would be well served to investigate Tier-1 WCS to accelerate their operational profitability goals. 

Written by Jamie Alexander

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