Common workflows you perform in ArcMap, ArcCatalog, ArcGlobe, and ArcScene are accomplished differently in ArcGIS Pro.
Navigate maps
Map navigation tools that are found on the Tools toolbar in ArcMap, ArcGlobe, and ArcScene are on the Map ribbon tab in ArcGIS Pro.
In ArcMap, tools such as Pan, Zoom, Identify, and HTML Pop-up are used for navigation and data exploration. In ArcGIS Pro, the functionality of these
tools is combined in the Explore tool 
. With the Explore tool, you can use mouse buttons to navigate 2D maps and 3D scenes.
Identify features
Unlike ArcMap, ArcGIS Pro doesn't have an Identify tool. To identify a feature on a map, ensure the Explore tool is active, and click the feature to open its pop-up. Click the drop-down arrow on the Explore tool to identify features in different layers.
Manage data
In ArcCatalog, or in the Catalog window in ArcMap, you add connections to folders, databases, and servers. In ArcGIS Pro, you can add connections in the Catalog pane, in catalog views, or from the Insert tab on the ribbon.
Connections in ArcGIS Pro are specific to the project to which they are added. You can use project favorites to add frequently used connections to new projects.
Common data management tasks such as copying, moving, and deleting items are performed in the Catalog pane or a catalog view. The Catalog pane is comparable to the Catalog window in ArcMap; a catalog view is similar to ArcCatalog, although it's not a stand-alone application.
Edit data
In ArcMap, you start an edit session to begin editing, and you stop the edit session when you're done. In ArcGIS Pro, editing is enabled by default and there is no need to start an edit session. Editing tools are available on the Edit tab of the ribbon when a map view is active. The default editing behavior also allows you to edit a table's attribute values and to add or delete table rows. When you're finished, you save or discard edits on the Edit tab.
For an experience similar to ArcMap, you can configure ArcGIS Pro to start and stop editing.
View and edit metadata
Metadata in ArcGIS format can be viewed and edited in ArcGIS Pro. You don't need to upgrade or import metadata that is in ArcGIS format. ArcGIS Pro supports the same metadata styles as ArcCatalog and ArcMap. In ArcGIS Pro, the default metadata style is Item Description.
Metadata for datasets and other items such as maps, layouts, and tools is displayed in the details panel of a catalog view. In ArcCatalog, you view metadata on the Description tab. ArcGIS Pro provides a similar experience on the Metadata tab.
Metadata is edited in a metadata view. The experience is similar to editing metadata in ArcCatalog.
Analyze data with geoprocessing tools
With ArcMap, ArcCatalog, ArcGlobe, or ArcScene, you click the ArcToolbox button to open the ArcToolbox window. In ArcGIS Pro, you access geoprocessing tools from the
Analysis tab. Clicking the Tools button 
opens the Geoprocessing pane. Popular tools can be opened from the adjacent Analysis gallery.
In the Geoprocessing pane, you can browse to system tools on the Toolboxes tab and add frequently used tools to the Favorites tab.
Unlike ArcMap, there isn't a stand-alone Search window in ArcGIS Pro. Instead, you search for tools using the search box in the Geoprocessing pane or Command Search.
ArcMap tools, models, and scripts can be used in ArcGIS Pro but may need to be modified. Run the Analyze Tools For Pro geoprocessing tool to check the compatibility of a script or toolbox.
View and modify tables
In ArcMap, both attribute tables and stand-alone tables open in a separate dockable window where each table is a separate tab. This is similar to ArcGIS Pro, where table views are stacked in a docked window by default. To open an attribute table in ArcMap, you right-click a layer in the table of contents and click Open Attribute Table. Similarly, in ArcGIS Pro, you right-click a map layer in the Contents pane and click Attribute Table 
.
When a table opens in ArcGIS Pro, the Table tab appears on the ribbon with several tools.
Common tools are also accessible from the table view.
To change field properties, you edit the fields view of the table. The fields view is a tabular layout of the table's fields. Each row represents a field and each column represents a field property.
Access and share portal content
In ArcMap and ArcGlobe, you can add data from ArcGIS Online on the File menu or using the Add Data tool. (In ArcScene, you access online data from the Search window.)
Similarly, in ArcGIS Pro, you can click the Add Data button 
to access portal items from ArcGIS Online or ArcGIS Enterprise. You can also click the Portal tab in the Catalog pane and choose a repository such as My Organization 
or ArcGIS Online 
.
In ArcMap, ArcGlobe, and ArcScene, you can publish maps, scenes, and layers to portals and make them available online. This is called sharing in ArcGIS Pro. To share web maps, web layers, and other items to your portal, you click the Share tab on the ribbon. ArcGIS Pro provides a more seamless and integrated sharing experience than the Service Editor wizard in ArcMap.