after implemented, but need thorough functional specs
functional specs for after ok
first simple functional specs for filter_result; nxt: nested and mixed spec for filter_result
specs finished for the 4 basic aspects (around missing), next: allow cross concerns
starting spec for before cc
before cc spec ok (cc unit spec ok); next cc specs for other aspects and cc demos as well as cc into 900-acceptance demo
cross concern functional specs complete; nxt: around concerns