1-Qucs-code-analysis/1-Introduction.md

 # Status of this document: :no_entry: Work in progress
 
+> :warning: TODO: ontology
+
 # An anlysis of Qucs-GUI code base
 
 ## A bit of context
@@ -20,6 +22,8 @@ Qucs-gui relies on a few executables to carry it's job, I have identified these
 - qucsveri (Verilog, digital simulation, wrapper around qucsconv)
 
 
+> :warning: TODO: Go over the executables and gives some explanation (see the [demistify page](8-dumping-ground/demistify))
+
 ### Simulation domains
 
 Alltogether, Qucs and Qucs-S (aka. Spice4Qucs) support the following simulation domains, using different backends (
@@ -48,3 +52,7 @@ Notes:
 - Different simulation backend support different simulation domains.
 - At the time of this writing, i do not know to which extent the backends are (un)compatible when it comes to "component models and properties".
 
+## Other classification:
+- language (eg, spice, qucs, vhdl, ...)
+- analysis (eg, noice, ac, ...)
+- algorithm (eg, analog, digital, mixed-mode, mixed-level)