add some more features to the TODO list

README.org

@@ -67,6 +67,24 @@ CLOSED: [2017-12-27 Wed 16:45]
 
 *** NEXT Add a Counter to the RAM Modules
 
+*** NEXT Create an abstract company class
+
+*** NEXT Create Customer and a Manufacturer sub class
+
+Those two would be based on the company class. I'm currently not sure
+how I should handle the case where a company is both a customer and a
+manufacturer.
+
+*** NEXT Create a NET category where a device can live in.
+
+This NET Category should display it's IP range, Subnet mask and show
+it's DHCP range if one is configured.
+
+*** NEXT Create class DeviceInNet
+
+This class shows the relationship between the device and a NET. An
+attribute of a DeviceInNet should be an IP address.
+
 ** Developemenet
 
 For a detailed documentation of the source have a look at the