The relationship spectrum describes the range of possible supplier relationship types, from arm’s-length transactional relationships to strategic partnerships.

CIPS explains that buyers should segment their supplier base and apply the most appropriate relationship type to:

Maximise value

Manage risk

Allocate resources effectively

The other options describe activities or tools, not the concept of classifying supplier relationships.

L4M6 Reference:

Learning Outcome 3: Understand approaches to managing supplier relationships

Topic: Relationship spectrum and supplier segmentation

CIPS L4M6 Study Guide – Supplier relationship models