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Introduction

Consider the adjacent recipe for chocolate chip cookies. There is an obvious missing element to this: units of measure. One tablespoon of pure vanilla extract? Teaspoon? Drop? Like cooking, supply chain and field operations quantities are meaningless without knowing units of measure. AgGateway, other agriculture-industry associations, agricultural companies, and standards bodies have addressed units of measure in their standards, guidelines, and products. This page provides a starting point for implementers to understand how units of measure are used in agriculture.

Chocolate Chip Cookies

1/2 __ unsalted butter
3/4 __ packed dark brown sugar
3/4 __ sugar
2 large eggs
1 __ pure vanilla extract
1 __ semisweet chocolate chips, or chunks
2 1/4 __ all-purpose flour
3/4 __ baking soda
1 __ fine salt

Source: Food Network

Units of Measure in AgGateway Open Standards

AgGateway Open Standards specifies use of UN/CEFACT Rec 20.

Consider the following XML document:

Measurement XML

<?xml version="1.0" encoding="UTF-8"?>
<Measurement
	xmlns="urn:cidx:names:specification:ces:schema:all:5:3">
	<MeasurementValue>50</MeasurementValue>
	<UnitOfMeasureCode Domain="UN-Rec-20">BG</UnitOfMeasureCode>
</Measurement>

Introduction

Chocolate Chip Cookies

Units of Measure in AgGateway Open Standards

Units of Measure in AGIIS

Units of Measure for Field Operations

Units of Measure Used by John Deere

Units of Measure Used by MapShots