Validating data edits

You can validate your data in the rules contained in the S-58 validation standard at any given time during the production process. You can use the Validate Sample S-57 tool to perform validation.

Functions of the Validate Sample S-57 tool

The functionality of the Validate Sample S-57 tool includes the following:

• Exports a sample S-57 file from the geodatabase
• Validates the contents and structure of the S-57 file using S-58 validation rules
• Writes the results to an ArcGIS Data Reviewer session in ArcMap so that you can review and resolve any S-58 errors found in the process

Validating data

The following steps can be used to validate data with the Validate Sample S-57 geoprocessing tool:

Note:

You will need a Data Reviewer workspace to perform these steps. Use the Enable Data Reviewer tool to create the Data Reviewer workspace with a file geodatabase. If you are using a checkout replica for editing, you can create the Data Reviewer workspace on the checkout replica schema.

1. Start ArcMap.
2. If necessary, open the Catalog window by clicking Windows > Catalog on the main menu.
3. Click Toolboxes > System Toolboxes > Nautical Tools > Validation.
4. Double-click Validate Sample S-57.

   The Validate Sample S-57 dialog box appears.

   

5. Click the browse button next to Product Library and browse to the product library containing the S-57 product you want to validate.

   If you are using an enterprise product library, choose the product library owner. A list of available products is enabled when the Product Library parameter is populated.

6. Choose the product you want to validate from the Product drop-down arrow.
7. Click the browse button next to Data Reviewer Workspace and browse to the workspace.
8. Click the browse button next to Production Database and browse to the workspace containing the data to be validated.

   Tip:

   If you are editing in an edit version of the NIS, and not a checkout replica, you must provide the connection to the edit version.

9. Click the browse button next to Output Location and browse to the location where you want to store the outputs of the process.

   Note:

   The outputs will be in the following formats:

   • S-57 file
   • S-58 XML that contains a list of errors found during the process
   • A shapefile of the errors
   • Data Reviewer results stored in a session in the Data Reviewer workspace

10. Click OK.
The process runs and the outputs are created.
11. Close the Validate Sample S-57 dialog box when the process completes.

Working with validation results

After exporting and validating your data, you can begin to examine the results and address any errors or warnings identified during the process. To perform this analysis, you will be working with Data Reviewer tools.

1. Click Customize > Toolbars > Data Reviewer.
2. Click the Reviewer Session Manager button .

   The Reviewer Session Manager dialog box appears.

   

3. If Reviewer Workspace hasn't been defined, click Browse and browse to the location of the Data Reviewer workspace.
4. Choose the appropriate session from the ID drop-down arrow.

   Note:

   A new session is created every time the Validate Sample S-57 tool is run.

5. Click Start Session.
6. Click Close.
7. Click the Reviewer Table button on the Data Reviewer toolbar.

   The Reviewer table containing all the errors found during the validation process appears.

   Tip:

   To more easily visualize the error records in ArcMap, click the Symbolize Reviewer Feature Records button that can be accessed in the left-hand pane in the Reviewer Table window under the General bar.

S-58 specific information in the Reviewer table

The Reviewer table contains many fields that help you understand, locate, and repair the errors found during the validation process. Many of the fields are standard Data Reviewer table fields. Some of the fields carry detailed information directly from the S-58 standard. Some information about these fields is provided below:

Field	Description
Check Title	Reference to the S-58 error number
Check Notes	The S-58 error description
Severity	1 = Critical Error 2 = Error 3 = Warning
Description	From S-58, the proposed solution to the S-58 validation error or warning

Understanding validation geometries

When navigating to errors and warnings in the Reviewer table, it is important to understand the following differences between feature geometries and reviewer geometries:

• Feature geometries represent the feature that either contains an encoding or participates in a topology error.
• Reviewer geometries are created when there is a topological error, and they represent the extent of the topological error. For example, if a DEPARE and LNDARE overlaps, a Reviewer geometry defining the overlap extent is generated.
• When there is an encoding error, the feature geometry and the Reviewer geometry are the same.

If the status of a record is set to Mark As Exception and the error in the data is not changed, subsequent runs of the Validate Sample S-57 File process will be compared to the previous session to carry forward the exceptions so that they do not have to be reevaluated.