After using the Create TOPS interface, the user can move on to utilize other interfaces in the Sample Adequacy tab. Check Adequacy () is one available sample interface. This interface is used to view the number of unsampled TOPS, required samples, and current samples for each stratum (Functional System, Volume Group, and Urban Code grouping). This allows users to quickly identify stratums that do not meet the sample adequacy requirements.

Table Elements

The Check Adequacy interface consists of filters (Year & Data), a generating button (View Adequacy), a table, and reporting options (PDF & Excel). This interface is read-only, but it does display some important information in its table:

Table Element	Description
Second Column	Displays the precision level (confidence level – precision rate) used to calculate the number of required samples. These values can be edited in the Precision Level interface in the Sample Adequacy tab.
Third Column	Displays a caution symbol () or green check mark (). A caution symbol indicates that a stratum has an insufficient number of samples. The number adjacent to the caution symbol denotes how many stratums are deficient.
Rows	Displays the breakdown of the stratum data. This can be viewed by clicking the caret icon () for the desired row.

Potential Samples

In the expanded rows, the user can view the number of unsampled TOPS Sections, the number of required samples, and the number of provided samples. These numbers and their location on the row are described in detail on the User Guide equivalent to this article (click here). The first number in any grouping will be a hyperlink which leads to the Potential Samples interface on the Sample Adequacy tab. This allows the users to easily add samples to a stratum with an insufficient number of samples. This process is described here.