Grammar Info
N4 Lesson 9: 15/15

化(か)する
-ification, -ization, to make something, to change, to become, transform into

Structure
Noun + (する)
Noun + + する(1) + Noun

(1) した
Details
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使用域 一般
Information
化(か) by itself is a suffix in Japanese which means ‘to change’, or ‘to transform’. When paired with する, it means ‘to transform into (A)’, where (A) is the noun that 化(か) is connected to. This structure is regularly translated as ‘~ification’, or ‘~ization’, and similar suffixes in English.
  • あと数年(すうねん)運転(うんてん)自動(じどう)化(か)する
    In a few years driving will become automated.
  • 私(わたし)仕事(しごと)書類(しょるい)データ化(か)する
    At work, I digitize documents.
When the する is connected to another noun, it may occasionally appear as した, or with attached to the end of it. This will indicate that there is a relationship between (B) and (A).
  • 劣(れっ)化(か)した家(いえ)立(た)て直(なお)仕事(しごと)たい
    I want a job rebuilding deteriorated homes.
  • 日本(にほん)紙社会(かみしゃかい)なので仕事(しごと)オンライン化(か)するのは厳(きび)し
    Since Japan is a paper society, digitalization of work is difficult.
However, in formal/scientific writing, the する (and ) may sometimes be dropped.
  • 日本(にほん)高齢(こうれい)化(か)進(すす)んでいる
    In Japan, the population is aging progressively.
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それ単純(たんじゅん)化(か)した英語(えいご)のように見(み)え
It appears to be simplified English.
20世紀(せいき)経済(けいざい)成長(せいちょう)の原因(げんいん)一つ(ひとつ)自動(じどう)化(か)と考(かんが)えられている
It is considered that automation is one of the sources of economic growth in the 20th century.
Notice that Noun+化 doesn't have to be followed by する, and can be simply treated as a noun.
お父(とう)さん、アプリこうやって最小(さいしょう)化(か)するの。
Dad, you minimize apps like this.
Online
Japanese StackExchange
Books
Tobira
Page 120
[AIAIJ] An Integrated Approach to Intermediate Japanese
Page 96