In ServiceNow, domain separation allows for hierarchical data visibility. Users in a parent domain can see data in their child domains, which is referred to as downstream visibility. This ensures that higher-level domains have access to the data of their subdomains, facilitating centralized management and oversight. However, users in child domains cannot see data in their parent domains (upstream) or sibling domains unless explicitly granted access.

* ServiceNow Domain Separation Documentation1

* ServiceNow Knowledge Base on Domain Separation2

In ServiceNow, domain visibility determines whether users from one domain can access records from another domain. To grant domain visibility to a user, you can:

AAssociate a visibility domain to one of the user's roles: This allows any user with that role to see records in the associated visibility domain1.

EAssociate a visibility domain to one of the user's groups: Groups grant their members the visibility domains of the group, which means when a user is part of a group, they inherit the visibility domains associated with that group1.

It's important to note that when a user leaves a group, they lose the group's visibility domains, and the use of visibility domains should be done thoughtfully as excessive use can slow performance2. Moreover, the domain hierarchy should be optimal to prevent performance issues2.

The options B, C, and D are not standard practices for granting domain visibility according to the ServiceNow documentation and best practices. Specifically, associating a visibility domain directly to a user record or setting the visibility domain's parent to the user's domain are not mentioned as recommended methods3421.

When configuring a shared process in ServiceNow, it's important to ensure that the global process is not inadvertently updated. To avoid this, a developer should change to a process domain such as TOP. This is because the TOP domain is the highest level in the domain hierarchy and allows for the creation of shared processes that can be used by all subdomains without affecting the global domain. This approach aligns with best practices for maintaining clear separation between global processes and those that are domain-specific, ensuring that any modifications are contained within the intended scope.

The ServiceNow documentation on domain separation and best practices for developers emphasizes the importance of understanding the domain hierarchy and selecting the appropriate domain when making changes to shared processes. By working within a process domain like TOP, developers can leverage the benefits of domain separation to manage data, processes, and administrative tasks in a multi-tenant environment effectively.

For further details and guidelines on domain separation and process configuration, ServiceNow provides extensive documentation and resources for developers, which can be found on their official support and learning portals

The glide.knowman.allow_edit_global_articles system property in ServiceNow, when enabled, allows users in the global domain to check out and edit global knowledge articles. This property is particularly useful in scenarios where an organization wants to centralize the editing of knowledge articles to users who are part of the global domain, typically administrators or designated knowledge managers.

This setting ensures that while users from other domains can view and utilize the global knowledge articles, the editing rights are reserved for global domain users to maintain consistency and control over the content. It's important to note that this property does not extend editing privileges to users from non-global domains or to all users with a knowledge admin role; it specifically targets users within the global domain.

The configuration of this property is a part of the knowledge management best practices in ServiceNow, as it helps in maintaining the quality and integrity of knowledge articles by restricting edit access to a controlled group of users. This approach aligns with the overall strategy of domain separation, where the goal is to separate and protect the data and operations of different business units or domains within the same ServiceNow instance1.

In ServiceNow, when a new record is created on a standalone table, the domain of the new record is set to the user's current session domain by default. This means that the domain context in which the user is operating at the time of record creation determines the domain assignment for that record. This behavior ensures that the data is correctly categorized within the domain structure, adhering to the visibility and access controls that have been established.

The concept of domain separation in ServiceNow is integral to its multi-tenancy model, allowing for data, processes, and administrative tasks to be segregated across different domains within a single instance. This is particularly useful for managed service providers (MSPs) who need to maintain distinct operational environments for multiple customers or departments within the same ServiceNow instance.

For a new standalone table, unless explicitly defined otherwise, the system defaults to using the user's current session domain for new records. This is supported by ServiceNow's documentation on domain separation best practices and the management of data within domains12. It's important to note that while the default behavior is as described, administrators have the ability to configure domain rules and behaviors to suit specific organizational needs.