移行

1. Origins, structure, and basic meaning

• Structure: 移行 is read as いこう and functions as a noun or with する for a system, method, or stage transitioning from an old state to a new one.
• Basic usage: Use 紙の申請から電子申請へ移行する for both endpoints and 新制度への移行 when naming only the destination.

2. Common pitfalls and similar expressions

• Paired から and へ
  • AからBへ clearly marks departure from method A and movement toward replacement B.
• Different from physical movement
  • It focuses on a change of systems, procedures, or operational stages, unlike 移動 for moving people or objects between places.