_usersModule.js

require([...], function(Marionette, UserPreferencesModule, UserData) {

   var UsersModule = Marionette.Module.extend({
      
      initialize: function() {
        this.setupData();
        this.setupEvents();
      },
      
      setupData: function() {
        this.moduleData = new UsersModel();
        this.usersData = new UsersData();
      },
      
      setupEvents: function() {
        // handle vent events, commands, requests
        // listen to module data, users data
      },

      buildLayout: function() {
        return new UsersLayout({
          model: this.moduleData,
          //...
        });
      },
      
      showModule: function() {
        this.app.commands.execute('show-page', this.buildLayout());
      },
   });
    
   return UsersModule;
});

usersLayout.js

require([...], function(Marionette, UsersTable, UsersFilters) {

   var UsersLayout = Marionette.Layout.extend({
     regions: {
       FiltersRegion: '#filters-region',
       TableRegion: '#table-region'
     },
     
     onShow: function() {
       this.FiltersRegion.show(new UsersFilters({
         collection: this.collection
       }));
       
       this.TableRegion.show(new UsersTable({
         collection: this.collection
       }));
     }
   });
   
   return UsersLayout;
});