View Entities (.eti files ending in View) are specialized data model objects used to provide high-performance, read-only data for ListViews. They function similarly to a SQL View, joining multiple tables to retrieve only the specific fields needed for a display grid.

When extending a base view entity like ClaimDesktopView, standard data model tags like column or typekey (Option B) are not used. Instead, Guidewire provides a specific set of " View Entity " tags. Because ValidationLevel is a typelist on the Claim entity, the correct tag to use in the .etx file is viewEntityTypekey (Option C). This tag tells the platform that the field is derived from a typelist and ensures that the UI renders it with the correct localized display names and icons.

The path attribute is equally critical; it defines the " traversal " from the view entity to the source data. Since ClaimDesktopView typically has a link to the Claim entity, the path Claim.ValidationLevel correctly instructs the system to pull the value from the related Claim record. While best practices for standard entities usually mandate the _Ext suffix, view entities often mirror the base field name for clarity unless a collision occurs. However, the use of the viewEntityTypekey tag is the fundamental architectural requirement for this task, as computedTypekey and computedColumn (Options A and D) are intended for logic-heavy Gosu expressions rather than simple database-backed path traversals.