What-If and Scope

What-If Lead Time

A shorter lead time reduces the deterministic protected demand and card count.

highlighted = computed this step

Shorter Lead Time

The what-if lead time is 1 day.

what-if lead time=1\text{what-if lead time}=1
Shorter lead timeThe table recomputes protected demand and cards after lead time changes.one-day lead-time what-ifvaluelead time1lead demand240protected demand300cards10

Recompute Protected Demand

Protected demand falls to 300 units.

240×1+60=300240\times1 + 60 = 300
Kanban what-ifThe chart compares base protected demand and cards with the shorter-lead-time case.what-if kanban cardslead demand 240 x 2 = 480protected 480 + 60 = 540; container 30base protectedbase protected 540what-if protectedwhat-if protected 300base cardsbase cards 18what-if cardswhat-if cards 10caseleadlead demandsafetyprotectedcardsbase24806054018what-if12406030010deterministic kanban sizing arithmetic only

What-If Cards

The shorter-lead-time card count is 10.

⌈30030⌉=10\left\lceil\frac{300}{30}\right\rceil = 10
Kanban what-ifThe chart compares base protected demand and cards with the shorter-lead-time case.what-if kanban cardslead demand 240 x 2 = 480protected 480 + 60 = 540; container 30base protectedbase protected 540what-if protectedwhat-if protected 300base cardsbase cards 18what-if cardswhat-if cards 10caseleadlead demandsafetyprotectedcardsbase24806054018what-if12406030010deterministic kanban sizing arithmetic only