Service - Unit Standard

Overview

Handler service for the standard unit that tracks a single item.

Repository

https://bitbucket.org/izara-supply-units/izara-supply-units-unit-standard

DynamoDB tables

Standard Config Table Per Service

Configuration tags

{
	configTag: "SupplyGraphServiceName"
	configKey: "SupplyGraphServiceName"
	configValue: xxx // eg: "SupplyGraph"
}

{
	configTag: "UnitManagerServiceName"
	configKey: "UnitManagerServiceName"
	configValue: xxx // eg: "UnitManager"
}

LogicalResults

Standard LogicalResults Per Service

Units that contain quantities

• Izara Supply is not used for stock management, but used to follow units we want to track, which in some cases might themselves have a quantity inside them (example bag of 1000 buttons or 200 yard roll of fabric)
• instead of tracking each button or each yard (or inch) we track the bag or roll only
• user can use a unitTrackedProperty to record the quantity inside the tracked Unit
• the unitTrackedProperty can then be used in Service - Transform Units to break down into individual units or multiple used to create other tracked Units
• eg if use 1 tracked back of 1000 buttons to make 10 shirts (100 buttons each shirt), the bag is one tracked Unit, and gets transformed into 10 tracked Unit shirts

Units that track costing

• The cost of Units passing through the supply chain can also be managed using unitTrackedProperty
• each material has a unitTrackedProperty that is it's cost
• example 1 tracked Unit of a bag of 1000 buttons would have a cost unitTrackedProperty for it's full cost
• calculatedProperties in transformUnits can spread that cost (and all other materials used) across the new tracked Units created, saving the total into a new property in the outputUnits

Graph database

Service - Supply Graph

Versioned data

unitSettings

{
	properties: {
		// some are controlled by unitType, others can be added as needed case by case, not controlled
	},
}

Relationships

{
	relationshipType: "{unitStandardLib.UNIT_IS_CURRENCY_GRAPH_REL_TYPE}", // "unitIs_currency"
	schema: {
		elementCanBeRemoved: true,
		allPropertiesImmutable: true,
		restrictProperties: true,
		properties: {
			originTimestamp: //timestamp the request to create/change this relationship was sent
		},
	}
}

• If UnitType has set isCurrency=true, all Units of that UnitType will have a link to a currency node

Working documents

Unit Standard