IDS licensing question

Anyone know how the number of users should be figured for licensing purposes these days? I'm particularly interested in how the number of licenses is supposed to be determined when connection pools are used to reduce the number of physical connections. I presume there's a document somewhere that describes what the definition of a user is, for licensing purposes. Anyone have a current version? Notice of Confidentiality: **This E-mail and any of its attachments may contain Lincoln National Corporation proprietary information, which is privileged, confidential, or subject to copyright belonging to the Lincoln National Corporation family of companies. This E-mail is intended solely for the use of the individual or entity to which it is addressed. If you are not the intended recipient of this E-mail, you are hereby notified that any dissemination, distribution, copying, or action taken in relation to the contents of and attachments to this E-mail is strictly prohibited and may be unlawful. If you have received this E-mail in error, please notify the sender immediately and permanently delete the original and any copy of this E-mail and any printout. Thank You.**