I've created an interactive visualization tool for ITIL 4 Service Value Chain, showing the inputs and outputs of all six core activities.

Open ITIL 4 Interactive Tool

This site is my collection of Technical practical notes, covering:

• Exchange Server: Installation & operations, hybrid deployment, certificate management, troubleshooting
• Microsoft 365: Exchange Online, security & compliance, Intune/Entra
• Azure: Subscription governance, network security, application platform, AI/OpenAI
• Others: Atlassian, etc...