Mix documents with your work and keep them together.
Why it's important?
In Fibery document is not a separate thing. In fact, you can treat every entity as a document. For example, in many tools Feature has just a small text area. But it is not enough to create a good specification.
Fibery has a full-blown collaborative text editor, so you can write specs inside Features and create lower-level work from here.
Save nothing and never lose changes. Many people can work on a single document together without fear.
Fast Linking and Work Creation
Create Roadmaps (or visualize other things with duration). Group cards horizontally. Change duration and start/end dates via drag and drop. Filters. Color coding. Custom milestones.
Track all changes' history and understand who ruined your perfect document. Recover to the previous version if you want.