Differences in IT Universe and Explorer Reported Numbers
The UI is composed of a number of complex descriptions of an estate. The interpretation of the numbers can therefore be complex. Its is therefore possible to misinterpret the values that are displayed and assume equivalence of numbers that should not be compared. The following is given as an example and explanation of the use of these numbers.
Explorer
The values on the left hand side of the attached screenshot in the “Explorer” section are the counts of discovered and stored CIs of their respective types. This can be described as the confirmation disposition of the scanned estate (Configuration Items - CIs).
IT Universe
The values presented within the “IT Universe” section are counts within the context of the discovered services.
Comparison of Service Numbers
The Explorer number of Services is 41 and the IT Universe number of Service is 41. These numbers should match unless a filter has been applied to IT explorer to review a specific service or set of services.
Comparison of Application Numbers
The Explorer number of Applications is 692 and the IT Universe number of Applications is 308. The “Applications” count in IT explorer is the sum of all the Applications upon which the 41 Services are dependant. So the 41 services make use of 308 applications to provide those services. This can be further interpreted as a number of Applications are not associated with any identified Service. In addition, this application count does not differentiate shared Applications that are used across multiple Services (if one Application is shared between two services then it gets counted twice). Therefore it is possible for the IT Universe counts to exceed the of the discovered Application CIs, as this is the sum of non-distinct CIs.
Comparison of Device Numbers
The Explorer number of Servers is 241 and the IT Universe number of Server is 262. The “Server” count in IT explorer is the sum of all the Servers upon which the 41 Services are dependant. So the 41 services make use of 262 servers to provide those services. In addition, this application count does not differentiate shared Servers that are used across multiple Services (if one server supports aspects of two services then it gets counted twice). Therefore it is possible for the IT Universe counts to exceed the of the discovered Application CIs, as this is the sum of non-distinct CIs.