OpenCyber AcademyLesson map
Lesson 14. Map, example, EX060.
flowchart TD
A["Twelve staff"] --> S["Keep the two figures apart"]
B["Sixty volunteers"] --> S
S --> R{"Does someone write 72 as the lab population?"}
R -->|Yes| N["Refuse. 72 is arithmetic, not a role"]
R -->|No| K["The access print stays four role lines"]
Adding the two groups does not create a fifth line in the access program.
Logical drawing
Riverbend, as written
twelve staff
sixty volunteers
access program
four roles
each scored out of 5 systems
|
+-- 12 plus 60 is not a role
+-- the four lines are not a headcount of the charity
+-- the script is not edited to print 72
Learning outcomes
After this chapter, you should be able to:
- Keep twelve staff and sixty volunteers as the published size.
- Refuse 72 as a replacement census.
- Keep the access print as four roles, not as a headcount.
14.1 The size of the charity and the width of a role are different counts
Riverbend has twelve staff and sixty volunteers. The access program does not count those people. It counts systems reachable by four roles, each out of five. A classmate adds twelve and sixty, writes 72, and replaces the role lines with "72 of 5." Addition of the two groups is not a run of the program, and 72 people cannot each be a fraction of five systems. The staff figure and the volunteer figure stay separate. Ruth does not edit lab_access.py.
14.2 Worked example
Lesson table; scroll horizontally to read all columns →
| Figure | What it counts | Decision |
|---|---|---|
| Twelve staff | Staff | Keep |
| Sixty volunteers | Volunteers | Keep |
| 72 | Someone's sum | Refuse as the census |
| Four role lines, each of 5 | Systems a role can reach | Keep those lines |
Synthetic case. The sum 72 is the classmate's arithmetic. It is not a new execution.
Errors and limits
Refusing the sum does not make either group unimportant. It stops one number from erasing the distinction the file actually drew.
Apply
- EX060 — What is 72? Riverbend has twelve staff and sixty volunteers. The access print has four role lines. A teammate writes 72 of 5. What figures stay, and what do you not print?
Show marking criteria
Rubric: 3 = twelve and sixty stay separate; 72 is not the census; the four role lines stay; do not edit the script;; 2 = 72 is refused and the role lines stay;; 1 = one of those;; 0 = none.