ServiceNow Discovery - CMDB
Discovery finds computers, servers, printers, a variety of IP-enabled devices, and the applications that run on them. it can update the CI's in your CMDB with the data it collects. Discovery is a module inside ServiceNow that helps in exploring a given network and identifies the interdependencies between the infrastructure components. Individual infrastructure component is referred to as configuration item or CI.
Horizontal discovery and Top-down Discovery:
There are two types of discovery:
Horizontal Discovery: Horizontal discovery is a technique that Discovery uses to filter your organization, discover computers and devices, and then populate the CMDB with the CIs it finds. Horizontal discovery creates direct relationships between CIs, such as runs on the relationship between an application CI and the actual computer CI that it runs on. Horizontal discovery is not aware of business services and does not make connections between CIs dependent on the business administration they are in.
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