Choosing Migration VS. Upgrade

1.     When

Ø When upgrade is not possible due to bad prior choices

·        Database Modifications

·        Unsupported site definitions

Ø When downtime is not tolerable

2.     Why

Ø    Cost of downtime is higher than negative impact from migration

Ø    Massive redesign is required to site/data structures

3.     How

Ø Migrate using 3rd party tools only, no Microsoft supplied solution.