When Active Directory Application Mode (ADAM) is used with Novell SecureLogin

When intalling SecureLogin, what is Active Directory Application Mode (ADAM) and when should I use it?

Installing NSL in ADAM mode

Whilst most organizations that use AD install SecureLogin in AD Mode and leverage their existing infrastructure without the overhead associated with installing and maintaining ADAM, some organizations are concerned about extending their Production AD Schema and Microsoft recommends using ADAM if this is the case.