Worked example · Geography · Year 7

Cloud storage organisation

DCF: Interacting and collaborating → Storing and sharing

What this is

One secure answer — not the only one. Every file on the printout is accounted for here: 12 kept and renamed, 4 archived as older versions, 4 parked for the owner to identify, and 6 deleted. That adds up to the 26 items on the printout, which is the quickest way to check a pupil's work.

The five kinds of problem

  1. Names that say nothing: Book1.xlsx, Doc1.docx, Untitled document.docx, dsfsdf.docx, map2.png, notes.txt.
  2. "Final" used as a version number: velocity readings FINAL.xlsx, final REPORT final v2 (1).docx, presentation FINAL USE THIS ONE.pptx. Once two files both say final, neither name means anything.
  3. Real duplicates: Copy of Copy of river photo.JPG is 4.2 MB, exactly the size of IMG_4821.jpg; Data2.xlsx and Data2 - Copy.xlsx are both 38 KB, the same as afon teifi data.xlsx. That is 4.2 MB and 76 KB of the shared area wasted.
  4. Names that only differ by capital letters: river study.docx and River Study.docx. Windows and macOS treat those as one name, so one can overwrite the other when files are moved.
  5. No structure at all: 26 items in the top level, mixing photos, data, reports, a risk assessment and two empty folders, with nothing to say which are the current versions.

Each problem is named with the actual files that show it, which is what makes the rest of the sheet possible.

The folder tree

7B-geography/   rivers-fieldwork-afon-teifi-2024/     01-planning/       2024-09-11_teifi_risk-assessment_signed.pdf     02-data/       2024-09-12_cenarth_field-notes_v01_pd.txt       2024-09-13_cenarth_channel-measurements_v01_pc.xlsx       2024-09-18_cenarth_velocity-readings_v02_pd.xlsx     03-photos/       2024-09-12_cenarth_channel-photo_01.jpg       2024-09-12_cenarth_channel-photo_02.jpg       2024-09-12_cenarth_flow-timer-screen.png     04-maps/       2024-09-15_teifi_catchment-map.png       2024-09-15_cenarth_site-sketch-map.png     05-report/       2024-09-21_cenarth_site-write-up_v02_pf.docx       2024-09-22_teifi_report_v02_pb.docx     06-presentation/       2024-09-25_teifi_findings_v02_pe.pptx     _archive/       2024-09-13_cenarth_velocity-readings_v01_pd.xlsx       2024-09-19_cenarth_site-write-up_v01_pf.docx       2024-09-20_teifi_report_v01_pb.docx       2024-09-23_teifi_findings_v01_pe.pptx     _check-with-owner/       Doc1.docx       Untitled document.docx       dsfsdf.docx       homework.docx

Meets criterion 1. Folders are named after content, numbered so they sit in the order the project happened rather than alphabetically, and nothing is deeper than three levels. The two folders beginning with an underscore sort to the bottom, so the working folders stay at the top.

The naming rule

The patternYYYY-MM-DD_place_content-type_vNN_initials.ext
Which date format?Year first. 2024-09-13 sorts into the right order automatically; 13-09-2024 puts every 13th of the month together regardless of year.
Spaces, hyphens or underscores?No spaces. Underscores separate the parts of the name, hyphens sit inside a part (channel-measurements). Spaces break web links and make command-line work awkward.
VersionsTwo digits, v01, v02, never the word "final". Two digits so v10 still sorts after v09.
An example2024-09-18_cenarth_velocity-readings_v02_pd.xlsx

Meets criteria 2 and 3: one predictable pattern, justified, and it is the pattern used everywhere in the tree above and the table below.

The decision table

File from the printout Decision New name and folder, or the reason
afon teifi data.xlsxRename 02-data/2024-09-13_cenarth_channel-measurements_v01_pc.xlsx — the original 38 KB file, saved by Pupil C on the 13th.
Data2 - Copy.xlsxDelete 38 KB, identical to the file above and to Data2.xlsx. Three copies of the same measurements; keep the one with the meaningful name and delete both others.
Copy of Copy of river photo.JPGDelete 4.2 MB, the same size as IMG_4821.jpg from two days earlier, so it is a copy of a copy of that photograph. Deleting it frees 4.2 MB.
velocity readings FINAL.xlsxRename 02-data/2024-09-18_cenarth_velocity-readings_v02_pd.xlsx — it is 24 KB and dated the 18th, so it is newer and longer than the 21 KB file from the 13th, which becomes v01 in _archive.
final REPORT final v2 (1).docxRename 05-report/2024-09-22_teifi_report_v02_pb.docx — the newest report at 1.1 MB on the 22nd. The 1.0 MB version from the 20th becomes v01 in _archive.
Book1.xlsxDelete 9 KB and opens as a blank sheet: it is the default name Excel gives a spreadsheet nobody saved properly. Nothing is lost.
scan0001.pdfRename 01-planning/2024-09-11_teifi_risk-assessment_signed.pdf — the teacher's signed risk assessment. No version number: a signed document is never edited, only replaced.
homework.docxAsk the owner Moved to _check-with-owner. It is dated the 24th and belongs to Pupil H, but nothing in the name links it to the fieldwork. I do not delete somebody else's work on a guess.

Meets criterion 4: the duplicates are identified from the file sizes and dates rather than from the names, and the two ambiguous files are parked instead of deleted.

The three sharing rules

  1. Everyone in 7B can view the whole fieldwork folder, but only the person who collected a set of data and the class teacher can edit the files in 02-data. Measurements are evidence: if anyone can retype them, nobody can trust them.
  2. Links are shared inside the school account only. No "anyone with the link" sharing, because the photographs were taken on a school trip and the sharing setting is the only thing stopping them leaving school.
  3. Nobody deletes another person's file. If it looks finished with, move it to _archive and tell the owner. Only the class teacher empties _archive, at the end of term.

Meets criterion 5: view and edit rights are separated with a reason, and other people's work is protected by a rule rather than by good manners.

The partner test

My partner was asked where the velocity readings from the trip were. They said "02-data, and it will be the one that starts with the latest date", and went straight to 2024-09-18_cenarth_velocity-readings_v02_pd.xlsx. They were right, and they did not need to open a single file to work it out — which is the whole point of naming files properly.

The test that matters: somebody who did not build the structure can still navigate it.

Why this response is secure