durchgeführter

Durchgeführter is the attributive form of the past participle of the German verb durchführen, meaning to carry out or conduct. It is used to describe actions, studies, tests or processes that have already been completed or executed.

In grammar, durchgeführt is the base past participle, and its attributive form is declined like a normal adjective. Examples in the nominative case include: der durchgeführte Test (masculine), die durchgeführte Prüfung (feminine), das durchgeführte Experiment (neuter). Plural forms are die durchgeführten Tests. In genitive and dative cases these forms change accordingly: eines/ eines durchgeführten Tests, einem durchgeführten Versuch, etc. In predicative position, as with other participles, the form without the attributive ending is common: Der Test ist durchgeführt; Der Test wurde durchgeführt.

Usage and context: durchgeführter is especially common in technical, scientific and official writing to indicate that an action has been completed. It often appears in phrases like durchgeführte Analyse, durchgeführte Untersuchung, durchgeführte Maßnahmen. The term emphasizes the completion of the activity, as opposed to ongoing or planned actions. It can also function as part of compound noun phrases such as "durchgeführte Studie" or "durchgeführte Prüfung" to label results or interventions.

Relation to related terms: the noun form is Durchführung (the execution or conduct), while the verb is durchführen. Durchgeführter serves as a descriptive adjective derived from the participle; other participles of durchführen follow similar attributive declension patterns.