Question 8
A company with headquarters (HQ) in the Middle East operates on a Sunday-Thursday weekday schedule with Friday & Saturday as weekend days. It computes end of week revenue numbers using an ETL pipeline by first computing sales for each day at 1AM local time of the next day, and then summing up the weekly sales every Sunday early morning at 3AM local time. This number gets reported to leadership every Sunday morning 9AM local time. Therefore, the ETL pipeline is scheduled to run every Sunday morning at 8AM local time. As a result of management change, the company has decided to shutdown its business in the Middle East and relocate all of its operations and business HQ to India. Which of the following changes will need to be done to its ETL pipeline to ensure the correct output continues to be produced?
The business time for the final weekly sum operation needs to be changed tothat of Monday 3AM India time instead of Sunday 3AM Middle East time.
There is zero change needed since neither event time nor business time ischanging whereas only the operational time is changing.
Since time zone has changed as well as week definition too, the definition ofbusiness time has changed. So, the ETL has to be rewritten entirely.
Nothing needs to change since daily sales is available at 1AM Middle East timewhich is anyway behind India time and so the numbers will be available before leadership comes in at 9AM.
Event time has changed since the event of week ending has changed indefinition, and so the ETL needs to be changed to consider the new event in the data.