
die Revision
review / overhaul
A thorough review, inspection, or revision, for example of technical systems, texts, or balance sheets.
Die jährliche Revision der Heizungsanlage steht an.
The annual overhaul of the heating system is coming up.
revision / review
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review / overhaul
A thorough review, inspection, or revision, for example of technical systems, texts, or balance sheets.
Die jährliche Revision der Heizungsanlage steht an.
The annual overhaul of the heating system is coming up.

appeal on points of law
In law, a legal remedy in which a judgment is reviewed by a higher court for errors of law, without new facts being heard.
Der Anwalt hat gegen das Urteil Revision eingelegt.
The lawyer filed an appeal on points of law against the judgment.

revision
The change or correction of an opinion, a scientific theory, or a plan based on new findings.
Die neuen Funde machten eine Revision der bisherigen Geschichtsschreibung notwendig.
The new discoveries made a revision of the previous historiography necessary.
The noun 'Revision' (revision/review) belongs to the verb 'revidieren' (to revise). Both come from the Latin 'revidere', meaning 'to look at again'. This origin explains the basic idea of review and reassessment in all meanings.
Der Autor muss sein Manuskript vor der Veröffentlichung noch einmal revidieren.
The author still has to revise his manuscript once more before publication.
You can easily recognize the meaning of 'Revision' (revision/review) from the context. In the legal field, it is a legal remedy; in a technical context, it refers to maintenance; and in science, it means the adjustment of a theory.
Der Techniker führt die Revision des Aufzugs durch.
The technician carries out the inspection of the elevator.
In the legal context, 'Revision' (appeal on points of law) is almost always used in the fixed phrase 'Revision einlegen' (to file an appeal on points of law). This means having a judgment reviewed by a higher court.
Die Staatsanwaltschaft hat gegen das milde Urteil Revision eingelegt.
The public prosecutor's office filed an appeal on points of law against the lenient judgment.
When it is about a review or inspection, 'Revision' (review/inspection) is often combined with verbs such as 'durchführen' (to carry out) or 'vornehmen' (to perform). Adjectives such as 'jährlich' (annual) or 'regelmäßig' (regular) are also typical.
Eine externe Firma führt die Revision der Buchhaltung durch.
An external company carries out the audit of the accounting.
exam / inspection
Both Prüfung and Revision can refer to a thorough examination of something. Prüfung is the more general term, while Revision tends to suggest a comprehensive, professionally organized inspection or overhaul. Prüfung is suitable for a routine check; Revision is more appropriate for such a comprehensive review.

Die Revision der technischen Anlage umfasste eine gründliche Kontrolle und Überarbeitung.
The overhaul of the technical system included a thorough inspection and revision.
Die Prüfung der technischen Anlage ergab keine Fehler.
The inspection of the technical system revealed no faults.