Knobit of Data modelling · K-524 · Skill

Recognises a fan trap

What it means

Two one-to-many relationships fan out from the same entity, and a question about how their many sides relate cannot be answered.

How it is assessed

Flags the deficient case and passes the acceptable one. Deficient: Branch 1:N Account Manager and Branch 1:N Account: which account manager services which account? Acceptable: Branch 1:N Account Manager 1:N Account, so the path carries the fact

Builds on

Explains the connection, fan and chasm trapsK-569 · Knowledge

Needed by

None