Create or customize patterns This article explains how to use step operations in discovery patterns used in ITOM Visibility. Refer to the official product documentation to learn about patterns in general and about available discovery patterns that come out of the box. You can customize patterns in the following cases: If your organization uses proprietary devices and applications, create patterns for these items to enable Discovery and Service Mapping to discover them.If you modify key attributes of CI types that had corresponding patterns, modify the relevant patterns to reflect the change. When you customize a pattern, you actually create a copy of the original preconfigured pattern. While Service Mapping or Discovery use the customized version, the original version is not deleted. When you download an update of the pattern from the ServiceNow Store, the original pattern is updated, not the customized copy of it. See the attached PDF for operational information on customizing patterns.