Page Comparison

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The real purpose of OpenLMIS is the workflow and process of the demand and supply cycle; inventory management is supportive of this, but is not the end goal of OpenLMIS.

Interfaces Between Bounded Contexts

Requisition Service

• Query to Inventory Management system for stock on hand, and beginning balance (as an input to "Requisition Advice")
  
  • InventoryManagement.getStockDetails(Product, Facility)
  • InventoryManagement.getStockDetailsAtHistoricDate(Product, Facility, Date)
• Query to Inventory Management system for "what was my facility's past consumption" (e.g. period-normalized consumption based on last period). if no Inventory Management system, this will be manually entered as part of the requisition
  
  • InventoryManagement.getConsumption(Product, Facility, Period)
  • need similar methods for Adjustments, etc.
• Query to itself for numbers from last month's requisition
  • RequisitionService.getRequisition(Facility, Period, Program)
• Query Program Data service to verify if all required data has been captured
  • (no new shared reference data)
• Query (something) for my facility's budget for this program and period
  • (Facility, Program, Period)
• Query Product Service(?) for catalog of Requestables and their type for my facility + program + period (with full-supply vs non-full-supply details)
  
  • Program, Period, Facility => Requestable
• Query (something) for unit prices of the Requestables
  
  • Program, Period, Requestable => (Currency)
• Use Fulfillment Service to create a new Order based on a Requisition
  • Order
    • Requestable, from Facility, to Facility, Program, Period
• (future) Use Notification Service to notify X that Y event happened

Fulfillment

• Submit an order to external ERP
• (maybe) Query Requisition Service for full details of the requisition that led to this order
  • Requisition.getRequisition(id) => Requisition
• Query to Inventory Management system for available stock
  
  • InventoryManagement.getStockAvailable(Product, Facility) (maybe stock is separated out by Program)
  • (maybe) getProductsThatCouldSatisfy(Requestable) => Product(?) aka Orderable/Stockable
• Use Inventory Management to reserve some stock (to be picked)
  • InventoryManagement.reserveStock(Product, Facility, Quantity) // maybe a StockEvent
• Decrement Inventory (after picking)
  • InventoryManagement.processStockEvent(StockEvent, pointer to reservation)
    • StockEvent (Event Type, Facility, Product, Batch/Lot, Quantity)
• Create Shipments
  • Shipment.newShipment(from Facility, to Facility, Product/Stockable line item details)

Shipping

• Get product list
  • ProductService.getProductList(...)
• Update stock
  • InventoryManagement.processStockEvent(StockEvent)
• Do we need to update the Requisition Service with a status that a requisition was fulfilled?
• Or update the Fulfillment Service with an "order received" status?

Inventory Management Service

• Use Notification service to send alerts
• (internal) Stock Movement service, same as processStockEvent(StockEvent)

Program Data Service

• Call out to 3rd party data collection system to get data (e.g. Ona, ODK Aggregate, DHIS2, etc)

Product Service

Notification Service