Reuse and lifespan · The refresh and retire list · Element

The review rhythm

When anybody actually looks.

The part

What it is

Nothing prompts a review. Without a scheduled one, the library grows and ages in the same direction, and nobody notices until a customer quotes something from four years ago.

Twice a year is usually enough for a library of ordinary size, and it takes an afternoon.

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.