Chapter 11 — Sharing and requests

Chapter 11 — Sharing and requests

Lesson map

Lesson 11 published. Map, example, EX041.

flowchart TD
  N0["Learning outcomes"]
  N1["11.1 Approved routes"]
  N2["11.2 Requests from individuals"]
  N3["11.3 Preparing data for partners"]
  N4["11.4 Sharing aggregates"]
  N0 --> N1 --> N2 --> N3 --> N4
  N4 --> EX["Worked example"]
  EX --> Q["Exercise EX041"]

Logical drawing

flowchart LR
  N0["Learning outcomes"]
  N1["11.1 Approved routes"]
  N2["11.2 Requests from individuals"]
  N3["11.3 Preparing data for partners"]
  N4["11.4 Sharing aggregates"]
  N0 --> N1 --> N2 --> N3 --> N4 --> Q["EX041"]

[Learning outcomes]
    |
    v
[11.1 Approved routes]
    |
    v
[11.2 Requests from individuals]
    |
    v
[11.3 Preparing data for partners]
    |
    v
[11.4 Sharing aggregates]
    |
    v
[Worked example] --> [Exercise EX041]

Learning outcomes

You will (1) share data through approved routes; (2) support requests from individuals; (3) prepare data for partners.

11.1 Approved routes

Linkway shares data with the transport authority, a ticketing supplier and a payroll company. Marta learns the approved route for each: a secure upload portal for the authority, an encrypted transfer for the supplier and the payroll system's own connection. Email attachments are not approved for personal data. She notes that approved routes have been checked for security, while improvised routes such as personal email are not. Marta writes the approved route for each partner on a one-page guide, which Mr. Hughes shares with office staff.

11.2 Requests from individuals

A driver asks for a copy of his roster and hours data. Mr. Hughes explains that people have a right to access their personal data, and that Linkway must respond within a month. Marta helps by finding the driver's records in the roster system and payroll exports, using his staff number. Mr. Hughes checks the results, removes other drivers' details and sends the response. Marta records the request in the log. The driver receives his data within three weeks and thanks the office.

11.3 Preparing data for partners

The authority asks for monthly passenger counts by route. Marta prepares the file from the count system, removing internal notes and checking totals against the monthly report. She follows the authority's template exactly, with route codes from the official list. She explains that preparing partner files carefully avoids rejected submissions and questions that delay funding. Before sending, Marta compares this month's totals with last month's and looks into any route where the change is unusually large, because a sudden jump might mean a data problem rather than real growth in passengers. One route's rise is explained by a school holiday ending.

11.4 Sharing aggregates

The local newspaper asks how many people use each stop. Mr. Hughes agrees to share yearly totals by stop. Marta checks whether any total is so small it might identify a regular passenger, such as a rural stop used by one person each day. She removes stops with very low use from the published list. Mr. Osei explains that even counts can reveal individuals when numbers are tiny. Mr. Hughes approves the final list, and the newspaper publishes it with a note that very low-use stops were left out.

Worked example

Marta learns approved sharing routes, helps answer a driver's access request within a month, prepares the authority's monthly file using official codes and removes very low-use stops from newspaper totals.

Synthetic case. Requests are synthetic.

Errors and limits

Small published counts can still identify individuals.

Exercises

• EX041 — Email attachments. Are email attachments approved for personal data? Rubric: 3 = no;; 2 = partly correct;; 1 = yes;; 0 = none.
• EX042 — Response deadline. How long does Linkway have to answer an access request? Rubric: 3 = a month;; 2 = partly correct;; 1 = wrong;; 0 = none.
• EX043 — Authority template. What codes does the authority file use? Rubric: 3 = route codes from the official list;; 2 = partly correct;; 1 = vague;; 0 = none.
• EX044 — Low-use stops. What happened to very low-use stops in the newspaper list? Rubric: 3 = removed;; 2 = partly correct;; 1 = vague;; 0 = none.

Continue studying — lesson 11 (chapter 11 of 18)

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