Explanation:

Box 1: canvas
Both model-driven and canvas apps allow you to easily build business apps. They both share access to the Common Data Service providing standard and custom entities. Canvas apps start with your user experience, crafting a highly tailored interface with the power of a blank canvas and connecting it to 200 data sources.
Canvas apps can be built for web, mobile, and tablet applications. Model-driven apps start with your data model - building up from the shape of your core business data and processes in the Common Data Service to model forms, views, and other components. Model-driven apps automatically generate great UI that is responsive across devices.
Box 2: model-driven
Reference:
https://powerapps.microsoft.com/sv-se/blog/introducing-model-driven-apps/