Provided this diagram accurately reflects the reality of your organization, no problem.
I could not see maintenance of facilities and equipment, training for awareness and competence or the inputs to which your organization’s work adds value. Normally: materials, sub-assemblies, data/information, people etc...
And you say activities when you may mean processes. As a guide activities tend to happen in one department whereas processes involve more than one department. All activities tend to belong to a bigger process.