Sourcing · The concentration position · Element
The single sources
Inputs where one supplier provides all or nearly all.
The part
What it is
Threshold should be set in advance — for example above seventy per cent — so the list is generated rather than debated.
Inputs that are cheap and critical are the ones most often single-sourced without thought, because the spend does not attract attention.
The smallest level
The attributes it carries
Each attribute is one of the framework’s shared types. What a date is, and how it is written, is defined once for the whole model — the note here says what it means in this particular place.
The other elements in the concentration position
The rationale
Why this input is single-sourced, and whether it was decided.
LearnThe switching cost
What it would take to move to another source.
Learn