Documented how methods are named

design/units.md

@@ -64,6 +64,14 @@ And a type `Bird` in a lone source file with the name `bird.fspl` would be:
 
 `eT/CnSopFDlFwpDCnSEAThjDsBw=::Bird`
 
+Methods are named as follows:
+
+`<uuid>::<name>.<method>`
+
+Where `<uuid>` and `<name>` correspond to the base64 UUID of the unit and the
+name of the method's owner type respectively, and `<method>` corresponds to the
+method name.
+
 ## Module Structure
 
 Each module is represented by a directory, which contains source files along