Glossary

Much of Plom is under heavy development, some of these terms will undoubtedly change.

Bundle

A .pdf file uploaded to Plom. It can contain work from one or more assessment submission[s].

Collision

The situation where an image in a staged Bundle has been interpreted (or intentionally assigned) as being an image of a page from a particular QR-coded Paper which already has an associated image.

For example, if page 3 from Paper 0054 has been pushed to a Plom server, and you stage a bundle my_bundle.pdf that contains another image (or the same image) of page 3 from Paper 0054, there exists a collision and it could be said that the staged image of page 3 from Paper 0054 is a colliding image.

Note that an Extra page cannot cause a collision.

Extra page

An image pushed to a Plom server in a Bundle that is not part of a QR-coded Paper, but has been associated with one or more questions on a particular Paper.

Plom has generic micro-qr-codes that allow Plom to automatically categorise an image of paper as an “Extra page”, though a Scanner must still manually associate each extra sheet a particular paper, and optionally one or more questions.

Identify

Associate an examinee ID (a sequence of numbers) and name with a paper.

Lead Marker

A Marker that has decision making authority over one or more question.

Manager

A user permitted to manage the server.

Marker

A user permitted to digitally mark (i.e., grade) scanned papers.

Paper

A collection of work that can be attributed to a single assessment submission. This can refers to both physical papers and the scans uploaded to Plom.

QR-coded Paper

A Paper with QR codes on each page that are recognisable by Plom. When scanned and uploaded, these pages will be categorised automatically.

Scanner

A user permitted to upload papers.

Specification

A description of the structure of the assessment and blueprint for building QR-coded papers. It describes how scanned work should be grouped together and retrieved for markers. Sometimes shortened to “Spec”.