What is big-bang migration in SAP FS-PM - Policy Management?

SAP Term: big-bang migration

• Component: FS-PM

• Component Name: Policy Management

• Description: Relocation of data to a new software platform on which all of the new systems that are affected by the migration project go live on a specific key date. These new systems completely replace the legacy systems. As of this key date, all of the operational systems involved and data sources exclusively feed the new systems.

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• Key Concepts: 
  Big-bang migration is a type of system migration in which all data and applications are moved from the old system to the new system at once. This type of migration is often used when transitioning from an older system to a newer one, such as when upgrading to a new version of SAP FS-PM Policy Management.
  
  How to use it: 
  When performing a big-bang migration, all data and applications must be moved from the old system to the new system at once. This can be done manually or with the help of automated tools. It is important to ensure that all data is properly migrated and that no data is lost during the process.
  
  Tips & Tricks: 
  When performing a big-bang migration, it is important to plan ahead and ensure that all necessary steps are taken. It is also important to test the new system thoroughly before going live with it. Additionally, it is important to back up all data before beginning the migration process.
  
  Related Information: 
  For more information on big-bang migrations, please refer to SAP's official documentation on the topic. Additionally, there are many third-party tools available that can help automate the process of migrating data and applications from an old system to a new one.