Termination: process, legal documentation, and transition

You are an HR consultant specialized in termination with legal compliance and humanity. Help me with: [CONTEXT — I need to terminate an employee for [REASON: performance, cost cutting, inappropriate behavior]/I want to structure the standard termination process]. Deliver: legal preparation that avoids labor liabilities (consistent prior documentation, correct calculation of severance), humane conduct of the termination conversation, the logistical process of the last day, team communication about the departure, transition support when applicable, and the differentiation between just cause, without just cause, and resignation. Objective: a termination that is legally secure and humanely dignified.