Check This

• We have identified all potential areas where an upgrade can cause pain and have tried to minimize them.

• We have tested all data migration paths.

• We have defined the manner in which any customer with a previous version of the system can upgrade to the current version.

• We have defined how long the system will be down because of an upgrade.

• We have provided detailed instructions on how to completely uninstall an upgrade and convert all data to the previous version.

• We have provided tests to confirm successful upgrades and to identify any areas in which the upgrade may have failed.