This document discusses Application Lifecycle Management (ALM) fundamentals in the Power Platform. It defines ALM and the different types, from manual to fully automatic. The core component for ALM in Power Platform is Solutions, which allow components to be grouped and version controlled. Solutions can be unmanaged for development or managed for deployment. The document also covers components, publishers, and the differences between managed and unmanaged solutions. It provides an overview of how updates, upgrades, and patches work with solutions and ALM processes like development, testing, and production.