Scenario
I have an InfoPath form. the user fills it in the details, and then a manager checks it over for accuracy. The manager then signs off the form to say that they are happy with the details and then the form gets submitted.
This process does not happen every time and its purpose is to validate that the user is performing the job to an adequate standard.
It is this sign off process that I need help on.
I need an easy way to authenticate the Manager. and associate the authentication with the form.
Environment
IIS6, Sharepoint 2007, SQL Server 2005, Infopath 2007, Windows XP.
I have considered using digital certificates but it seems to be overly complex for what I am trying to achieve, however happy to be proven wrong.