Codex
The record of one pupil's assessed work, written for that pupil and their family. It says what they demonstrated against the criteria their own school set, and names the evaluator who judged it — someone who does not work for the school. It is never a score and never a grade: where a school uses the four-level rubric, a Codex reads "Proficient", not "3".
See also:
Portfolio ,
Attestation ,
Evaluator
Portfolio
A pupil's submitted evidence for one milestone — the work itself, whatever form it takes. Never called an "artifact": it is the thing the pupil made and the thing an evaluator actually reads.
See also:
Codex ,
Evaluator
Attestation
A school's tabulated record of every result it has had independently judged, for funders and regulators. It aggregates Codices without flattening them into a school-level grade, and it makes no claim of comparability with any other school.
See also:
Codex
Evaluator
An independent subject-matter expert who judges a pupil's work against the standard that pupil's own school set. They do not work for the school and deliberately do not know the pupil. JitGuru lists them and never ranks them — whether one meets your bar is your judgement, because your standard is the one that counts.
See also:
Codex