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2. The Workflow Designer uses a technology called Java Web Start and requires Java to be installed on the PC. If a JNLP file is downloaded, open it with the Java Web Start Launcher. The Workflow Designer will be downloaded to the PC the first time it is launched, or when there are any updates. 
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In the Community Edition, if you encounter a security problem launching the Workflow Designer with the message "Java applications are blocked by your security settings", this is due to security changes introduced in Java 7 Update 51 onwards for self-signed certificates. There several solutions for this in Java Security Settings for the Workflow Designer. |
3. There are 3 main areas in the Workflow Designer. On the top left, the Navigator panel contains a list of processes. The bottom left Guide panel provides hints and warnings. The main panel in the middle is the Graph area that contains a palette and the process diagram.
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