1) Formalisation 2) Rationalisation 3) Rationalization 4) Systematisation 5) Systematization 6) The act of making formal 1) Formalisation 
[n] - the act of making formal (as by stating formal rules governing classes of expressions)
formalisation noun the act of making formal (as by stating formal rules governing classes of expressions)
(Ger. Formalisierung) In Husserl: 1. (objective) Ideational 'abstraction' from the determination of an object as belonging in some material region. The residuum is a pure eidetic form. 2. (noematic) Substitution, in a noematic-objective sense, e.g., the sense signified by a sentence, of the moment 'what you please' for every materially determinate....