Qlik Exam QSDA2019 Topic 6 Question 19 Discussion

A data architect needs to efficiently prepare a data model for a meeting in an hour.

The data source to be used contains five date fields. The app needs to display sales trends and compare the current year to date (CYTD) to last year to date (LYTD). The app is NOT going to be published. It will only be used for this meeting and a single user's ad-hoc analysis.

What should the data architect do to meet these requirements?