“Sourcing” tab on the part record

The Sourcing tab of a part record (part catalog) answers, on a single screen, three procurement questions: which stock rule applies, from whom may I buy (and am I allowed to), and do I already have it internally elsewhere. It is the entry point of the Supply module (supply) on the part record.

Effective stock policy

At the top, the effective policy for this item, with a scope-origin badge (instance, site or storage — see Stock policies). It shows the reorder point, safety stock, min/max, lead time, ABC class and the minimum remaining shelf life required on arrival. With no policy, the instance default lead time applies and no threshold is set.

Reorder point suggestion

A naive, assumed suggestion: reorder point = D̄ × L + SS (average daily demand × lead time + safety stock). A “slow-moving item” warning shows when consumption is intermittent — most aero parts are slow movers, where a daily average carries no statistical meaning. It is a starting point to correct by hand, not a prescription; the honest computation comes in a later phase.

Supplier catalog (entry)

This is where the purchasing data for an item is entered: for each supplier, the unit price (and its currency), the lead time (in days), the vendor reference, the minimum order quantity and pack size, a preference rank and a validity period. “Add an offer” creates an entry; each offer can be edited or removed.

This data feeds the valuation of requests and orders (estimated price), the choice of the preferred supplier (smallest preference rank) when turning needs into requests, and the lead time used to suggest the reorder point. Writes are admin-secret protected and audited.

Each offer also carries, in the Approval column, its state crossed with the ASL — approved, suspended, expired, revoked or not approved.

A non-approved source is never hidden: it stays displayed, with its state. An order from it will be blocked at send time (except with an active traced derogation). Prices are not compared automatically across different currencies — the human decides.

Internal availability

The usable stock per storage: solving a shortage does not necessarily mean buying. Another storage or site may hold the part — that is the internal replenishment channel (transfer note), presented side by side with external suppliers.

Interchangeable group

The interchangeable items, merging two referentials:

Logistical — the interchangeability rules from the part record (context-free).
Technical — the items allowed on the same employment point of an applicable configuration. This equivalence is contextual: each equivalent shows the top product (aircraft or equipment) and the employment point where it holds. A ≈ B on a RAFALE M may be false on a RAFALE B, or at another employment point.