Decentralization: Decentralization refers to the transfer of power and authority from a central government to regional or local authorities. It can be influenced by various catalysts.
Secession: Secession is when regions within a country choose to separate themselves politically and become independent entities. It is often an outcome of devolution caused by certain catalysts.
Autonomy: Autonomy refers to having self-governing powers and the ability to make decisions independently. It can be a result of devolution triggered by a catalyst.