Update further_details FAQ entry with information on weekend numbers

[Ein-Tim]

Suggested enhancement

Add information on why the statistic numbers in the CWA may be inaccurate on weekends (& Mondays) to the FAQ entry

• https://www.coronawarn.app/en/faq/results/#further_details
• https://www.coronawarn.app/de/faq/results/#further_details

Problem and motivation

Currently CWA just shows numbers like "1" or "2" on the "Reported New Infections" statistic tiles which leads many users to wonder if the app is broken or something else went wrong.

See also corona-warn-app/cwa-wishlist#845.

Is this something you're interested in working on

Yes, I would suggest to add the text (or a slightly adjusted one) which is shown on the RKI COVID-19 Germany dashboard on weekends which is:
"Da am Wochenende nur noch wenige Gesundheitsämter und Landesbehörden Daten an das RKI übermitteln, werden keine Daten am RKI eingelesen, sodass es bei den absoluten Fallzahlen keine Veränderung zum Vortag gibt. Die Änderung der 7-Tage-Inzidenz im Vergleich zum Vortag beruht lediglich auf einer Änderung des Bezugszeitraums (jeweils 7 Tage vor dem Tag der Berichterstattung)."

[MikeMcC399]

Just to provide a concrete example from the tile "Confirmed New Infections" for today, Monday, August 29, 2022 looks as though the data feed must be broken and there is no explanation for this in the app or in the FAQs.

Normally you could expect the number of new infections to be close to the 7-Day-Average. The number 1 for the daily report and 33,303 for the 7-Day-Average are however completely different.

If numbers are not reported to RKI at all at weekends then it calls into question the value of publishing daily figures in the app.

Monday, August 29, 2022

The full help text from https://experience.arcgis.com/experience/478220a4c454480e823b17327b2bf1d4 is below (click on arrow on left of screen) :

[MikeMcC399]

Tuesday, August 30, 2022

[Ein-Tim]

@MikeMcC399

The numbers from Monday, which are displayed today in the CWA, seem more realistic and closer to the actual "Infektionsgeschehen".

[MikeMcC399]

@Ein-Tim

The Tuesday number partially compensates for the Monday number. The Tuesday number is 68% more than the 7-Day-Average.

[MikeMcC399]

@Ein-Tim

• According to your comment in Add information to confirmed new infections statistics card on weekend numbers cwa-wishlist#845 (comment) related to in-app changes to the help text, perhaps it is not necessary to change the FAQs?

"Für Gestern / Bis gestern wird die Zahl für den Vortag / bis zum Vortag angezeigt. Wenn für den Vortag noch keine Zahl vorliegt oder die für den Vortag vorliegende Zahl keine Aussage zulässt, z.B. weil am Wochenende oder an Feiertagen nur noch wenige Gesundheitsämter und Landesbehörden Daten an das RKI übermitteln, wird das Datum des letzten Tages angezeigt, für den eine Zahl vorliegt."

[Ein-Tim]

@MikeMcC399

Yes, seems like the in-app explanation text will be extended. The question is: Should the FAQ be extended with the same text?

I leave this to the team to decide (@christianneu).

[MikeMcC399]

It looks like the 1% rule was already implemented. Yesterday (Monday) the app was showing data from last Friday. Today (Tuesday) it is showing the data from yesterday (Monday).

[Ein-Tim]

@MikeMcC399

• I guess Threshold check added (closes https://jira-ibs.wbs.net.sap/browse/EXPOSUREBACK-2421) cwa-server#1893 is already in production.

I don't think the FAQ needs updating at this point, so I'm closing this issue.