Products documentation can be very long process, although using the right platform helps a lot but either way before you even start writing one documents you need to arranged the topics and articles to want to write.
If you have more than one product that and you have tried to create a online documentation using the regular posts / pages content you may already know that there is huge problem.
If you have a article that is relevant to more than one product you either need to write it twice (which is a huge time waste especially when you need to update it) or you can link to the same content twice. Because of they way WordPress is structured if you link to the same article the customer will loose the content will be redirected to another product which is not relevant to him.
To solve that we have created DocFairy as an abstracted online documentation that can mange unlimited number of products documentation and each article can be associated with any number of products.
Also because each product has his own articles and articles order you can arranged the same article in different order under different products, this is simple feature can save you a lot of time and help you create better documentation.