What is the best practice to prevent duplicate CI Creation?

Creating a CI Identifier specific to the CI Application is a best practice for preventing the creation of duplicate Configuration Items (CIs). This approach ensures that each CI has a unique identifier that distinguishes it from all other CIs within the Configuration Management Database (CMDB). By assigning a unique identifier to each CI, the system can easily recognize and differentiate between them, reducing the risk of duplicates entering the database.

Having a specific identifier for each application allows for accurate tracking and management of the configuration items associated with that application, facilitating better reporting, auditing, and management of IT assets. It enhances the integrity of the CMDB, enabling IT teams to have a single source of truth regarding their infrastructure and services.

The other options, while relevant in different contexts, do not address the root cause of duplicate CI creation as effectively as creating a specific CI identifier does. Modifying existing data may lead to inconsistency or confusion, creating complexity rather than solving the problem of duplication. Creating multiple CI Classes can complicate the classification system and lead to potential overlaps rather than prevent duplicates. Having only one Process Handler per CI Class may simplify certain processes but does not inherently address the identification and prevention of duplicates in the CI records.