1. Landscape Set up: There are many activities but the core one is take control on the landscape setup. As this will be done during the Preparation stage like setting up the Dev / Sandbox system,SAP cloud connector, SAP web IDE , setting up the Internet and Intranet users etc.Setting up the required sizing for all environment etc.
2. Activate Standard: This activity focus on the activation and testing of the SAP fiori applications. Activation of the business role. This activity also to be done in the Preparation stage.
3. Verify and Adjust: This activity will have a overlap during the Preparation phase and also during the explore phase. During the explore phase it will need to support the technical and functional testing. Fine tunning the fiori app performance will also be a key activity.
4. Extend and Build: This activity will be done during the realization phase.Modification/creation of Fiori apps based on confirmed UX.
You can also read about previous post about
Intelligent Enterprise
Different Roles in UX
Happy learning !!