Primary classification of the error. The following values are defined: 2 - Communications Error. Errors of this type are ...

Primary classification of the error. The following values are defined: 
2 - Communications Error. Errors of this type are principally associated with the procedures and/or processes required to convey information from one point to another. 
3 - Quality of Service Error. Errors of this type are principally associated with failures that result in reduced functionality or performance. 
4 - Software Error. Error of this type are principally associated with a software or processing fault. 
5 - Hardware Error. Errors of this type are principally associated with an equipment or hardware failure. 
6 - Environmental Error. Errors of this type are principally associated with a failure condition relating the to facility, or other environmental considerations. 
7 - Security Error. Errors of this type are associated with security violations, detection of viruses, and similar issues. 
8 - Oversubscription Error. Errors of this type are principally associated with the failure to allocate sufficient resources to complete the operation. 
9 - Unavailable Resource Error. Errors of this type are principally associated with the failure to access a required resource. 
10 -Unsupported Operation Error. Errors of this type are principally associated with requests that are not supported.