Microsoft Viva is an employee experience platform that aims to empower employees and foster well-being and learning through four components: Viva Connections for communication and culture, Viva Insights for productivity and well-being, Viva Topics for knowledge and expertise, and Viva Learning for accelerated skills development. It utilizes artificial intelligence and integrates with Microsoft 365 applications like Teams and Outlook to provide personalized insights and recommendations to individuals, managers, and leaders.