Traceability Method Typology

The STREAMS Traceability Matrix helps users understand how supply chain traceability systems can be used to support labor rights due diligence. Traceability approaches have been grouped into three core elements based on the functions they can play in traceability and due diligence for labor rights.

1. Identifying and engaging with supply chain partners to understand and document the WHO and WHERE of the actors/entities throughout a supply chain.
2. Tracking movement and transactions of products throughout the supply chain.
3. Providing scientific validation of supply chain information gathered via other traceability approaches.

These three elements are building blocks of a robust traceability system. Each element is strengthened when implemented in coordination with one or more additional elements.

For each of the three elements, the STREAMS Traceability Matrix describes a set of methods, or models, that are commonly used in implementing that element. These traceability methods are grouped by their function and the type of supply chain information they can provide to support labor rights due diligence efforts.

Matrix entries for each traceability system element and associated method include:

• A brief overview summarizing the basics: how it works, what role it plays in a traceability system, what types of supply chain information it can surface for downstream users
• How it can be used to combat forced and child labor

To understand the potential of different methods, we can look at examples of how each method has been utilized in practice, as well as the specific types of technology that enable different methods. This practical information is featured in the Examples and Technology sections of this Matrix.