I am confused in translating some kind of phrases such as below : Which one of the pairs is true? If both, What is the difference? and what is the meaning of the phrase? (I mean if I want to explain the phrase what I must say?)

  • Security function requirement interfering actions
  • Security function requirement interfered actions

  • Security function requirement enforcing actions

  • Security function requirement enforced actions

Update : I want to translate the below paragraph in persian. But I don't understant the ...ing words in the bold phrases return to which one of the words in back!

Note : SFR = Sequrity Function Requirement

The purpose of this work unit is to supplement the details about the SFR-enforcing actions (provided in work unit ADV_FSP.3-6) with a summary of the remaining actions (i.e., those that are not SFR-enforcing). This covers all SFR-supporting and SFR-non-interfering actions, whether invokable through SFR-enforcing TSFI or through SFR-supporting or SFR-non-interfering TSFI. Such a summary about all SFR-supporting and SFR-non-interfering actions helps to provide a more complete picture of the functions provided by the TSF, and is to be used by the evaluator in determining whether an action or TSFI may have been mis-categorised.


The -ing forms of enforce, interfere, and support are used here to create adjectives. For example,

SFR-enforcing actions

refers to actions which enforce the SFR. Two simple and more familiar examples for this construction are the adjectives "ground-breaking" (derived from "to break ground"), and "breath-taking".

All four variants given in your question are in principle correct. However, an

SFR-enforced action

is an action that has been enforced by the SFR, as compared to an action that enforces the SFR (which would be an SFR-enforcing action).

Note that the hyphen is quite useful because it indicates that "SFR" and "enforcing" are joined together to form the adjective "SFR-enforcing". Finally, using the abbreviation SFR also makes the expression much easier to understand.

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