The user interface of KNIME Analytics Platform
1. The user interface of KNIME Analytics Platform
Let's have a look at the user interface of KNIME Analytics Platform. In the main view, you can see 3 areas: the workflow editor, the node monitor, and the left side menu. In the last one, you can switch between the description tab, the node repository, the space explorer, the AI assistant, and the Workflow monitor. Click the button to move to the home page. Here you can find some example workflows, quickly open the latest ones and navigate your local workflows. Open workflows appear in the Workflow Editor. You can interact with the single nodes in many ways, the most straightforward is by clicking the buttons in the Node Action Bar that appears when hovering over a node. Click the play button to execute a node and select it to inspect its output in the Node Monitor at the bottom. This Excel Reader node reads an .xlsx file containing HR data. Recall that a workflow usually has many nodes, each performing an operation on the data. Let's now add a new node to filter some data from this table. Drag and drop the connection from the Excel Reader node to reveal the Quick Node Adding Panel. Look for "Row Filter" and click to add it to the workflow. The red traffic light tells that the node needs some configuration before being able to be executed. Open the configuration window of the node by clicking the cog button above it and specify a criteria for filtering. Let's say, filter only the Female employees. After executing the node, you can see its output in the node monitor below. More nodes can also be added from the Nodes panel on the left. Look for a Bar Chart and drag and drop it to the workflow. In this case, you need to provide the connection manually: drag the output port of the Row Filter and connect it to the Input port of the Bar Chart. The Bar Chart is a visualization node, so instead of a data table, you can see a visualization in the node monitor. Make sure to save the final edits of your workflow by clicking the icon at the top. Move to the space explorer to browse your local workspace and open another workflow. Note that if you have some data saved in your workspace, you can drag and drop it directly to a workflow to automatically add a preconfigured Reader node to read that data. Finally, to import workflows and data to your local workspace, use the menu in the space explorer. You can also organize your workflows and data in a folder. Isn’t that easy? Try it out for yourself in an exercise!2. Let's practice!
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