Phone numbers are not a fifth field

Lesson map

Lesson 12. Map, example, EX058.

flowchart TD
  C["event-calendar tuple"] --> A["Age note only"]
  P["Phone-number discovery"] --> S["Prose: moved, then deleted"]
  S --> Q{"Does that edit the tuple?"}
  A --> Q
  Q -->|No| K["1606 and in-use stay"]

The discovery changes priority in the write-up. It does not change the row.

Logical drawing

event-calendar tuple stays:
  1.4.1, fixed None, last release 2022-05-09, in use True
printed note stays:
  UNMAINTAINED (1606 days since release)
phone numbers printed: none

Learning outcomes

After this chapter, you should be able to:

1. Keep the calendar tuple identical after the discovery.
2. Place the phone-number move in prose.
3. Refuse a digit, a count, or a new flag on that line.

12.1 The fifth field stays true. The phones never become a column.

event-calendar's tuple is ("event-calendar", "1.4.1", None, date(2022, 5, 9), True). The discovery that it stored volunteers' phone numbers for shift sign-ups is told later. Those numbers were moved to the charity's existing volunteer system and deleted from the website. The volunteer system is not named. No telephone number is written in the book. No count of volunteers is written.

True still means the calendar is in use at the time of this export. The move does not flip that Boolean, does not fill in a fixed version, and does not change 1606. A reader who adds PHONES to the note list is editing a file the lab did not edit. Higher harm moved the replacement earlier in the month's plan. A plan is not a second execution of the loop.

The three administrator accounts from the opening week are also absent here. This tuple does not store an owner. The volunteer who installed plugins years ago is unnamed and is not a field. Landis and Koch (1977) define kappa for more than one coder. One person reading this row does not produce a kappa. The agreement statistic stays undefined.

Lesson table; scroll horizontally to read all columns →

12.2 Worked example

Lesson table; scroll horizontally to read all columns →

Synthetic case. The calendar row is still one component line.

Errors and limits

Do not write a telephone number into a lesson that never recorded one.

Apply

• EX058 — Unchanged tuple. After the phone-number discovery, a classmate changes the calendar line to say the phones were deleted and flips in_use to false. What does the tuple still contain?
  Show marking criteria

  Rubric: 3 = version 1.4.1, fixed None, last release 2022-05-09, in_use true, and the 1606-day note; the move and the deletion stay prose; no phone number is printed;; 2 = the printed line stays the age note and the Boolean stays true;; 1 = one field;; 0 = none.