The isolates

Goals with no links in or out.

The part

What it is

An isolated goal is not automatically wrong, but it is not benefiting from or contributing to anything else, which weakens the case for it being strategic.

Most isolates turn out on inspection to be operational necessities that were promoted.

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.