## Understanding reported errors

The application checks the data you supply as soon as you attempt to save it. The purpose of this check is to help you get your data right. If data quality checks and data entry validation identify errors, the application displays a message before saving.

There are three types of field validation in HWN:

• Type 1: mandatory fields are left blank or have been assigned invalid values: an error message is displayed, the relevant field labels are shown in red and you cannot save the data.

• Type 2: required fields are left blank: a warning message is displayed, the relevant field labels are shown in blue, but saving is possible. This will typically occur when required data are not available until the end of the surveillance period, e.g. the number of discharges in the surveillance period.

• Type 3: optional fields that can be empty: no warning or error message is displayed.

Figure 1 illustrates possible errors and warnings that could arise when you save a record in the CDI hospital data form. Note that in this case, there is one error and the data cannot be saved before the mandatory data is entered.

Figure 1: Example of errors and warnings

Note: Not all validation rules are implemented at data entry; some more complex rules are implemented only in the data quality check.

More:

General features of the user interface

HelicsWin.Net v2.2 Online User Guide v20160330
© European Centre for Disease Prevention and Control, 2016
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