A horizontal discovery pattern is a set of steps that execute operations to identify, classify, and populate attributes for configuration items (CIs) of a specific category or class, such as infrastructure or application. A horizontal pattern can be applied to any operating system or platform that supports the required protocols and commands12.
References:
* Horizontal discovery patterns
* Discovery pattern types

The Discovery Dashboard provides a summary of the Discovery status, including the number of active discovery errors, the number of devices discovered, and the number of credentials used. Each error has a help link that provides more information about the cause and possible solutions.
References:
* Discovery Dashboard
* Discovery troubleshooting | Error messages

The Automation Error Messages list displays the errors that occurred during the execution of Discovery automation scripts. From this list, you can view the details of each error, such as the script name, the error message, the device, and the time. You can also perform actions on the errors, such as retrying the script, ignoring the error, or creating an incident. To do so, you can use the options on the right navigation pane, which are categorized as follows1:
* SELECT ALL: This option allows you to select all the errors in the list.
* SELECT ONE: This option allows you to select one error in the list by clicking on the checkbox next to it.
* ACTION ON SELECTED: This option allows you to perform an action on the selected errors, such as Retry, Ignore, or Create Incident. You can also choose to perform the action on all the errors in the list by selecting the All option from the drop-down menu.
* ACTION ON ALL: This option allows you to perform an action on all the errors in the list, regardless of the selection. You can choose from the same actions as the ACTION ON SELECTED option.
References:
* Discovery error messages: This article explains the different types of error messages and warnings in Discovery, and how to access and manage them.

Based on the web search results from the search_web tool, the following choices best represent key capabilities of a ServiceNow ITOM Enterprise solution:
* Manage Hybrid Clouds: ServiceNow ITOM enables organizations to gain visibility into their IT environment, on-premises to cloud, and see the impact of their applications on business services12. It also helps to plan, track, and secure cloud implementation through best-practice governance1. Four apps comprise Cloud Accelerate to help prepare for cloud migration, streamline provisioning requests, and manage cloud resources1.
* Proactively Eliminate Service Outages: ServiceNow ITOM helps to predict issues, reduce user impact, and automate resolutions with predictive AIOps and automation13. It analyzes telemetry and log data using AI to reduce noise, expedite mapping and predict issues1. It also delivers proactive digital operations with real-time log data to solve problems quickly1.
The other choices are not specific to ServiceNow ITOM Enterprise solution, but rather general features of the ServiceNow platform. The ServiceNow platform allows users to create an engaging user experience with intuitive interfaces and workflows. It also enables users to build new apps fast with low-code development tools and pre-built components.
References: 1: ITOM - Enterprise IT Operations Management - ServiceNow 2: ServiceNow IT Operations Management (ITOM) Services | Jade 3: Modernize IT Operations Management with ServiceNow ITOM :
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