Verb Patterns

[snade17]

Please tell me if the following sentences are gramatically correct:
1. This part of ISO enables those associated with acquisition to specify software product quality.
2. This part of ISO enables software product quality to be specified by those associated with acquisition.
3. This part of ISO enables specifying software product quality.
4. This part of ISO enables specification of software product quality.
5. This part of ISO makes possible for those associated with acquisition to specify software product quality.
6. This part of ISO makes possible for the software product quality to be specified by those associated with acquisition.
7. This part of ISO makes possible the specification of software product quality.

[Tdol]

1/2/7 (5&6- I'd use 'makes it possible') I don't like 3&4

[snade17]

Thank you very much for your quick response. It is of great help for me. Now would you please answer me if sentences 3 and 4 will be allright if I add "the", i.e.
3. This part of ISO enables the specifying of software product quality.
4. This part of ISO enables the specification of software product quality.

[Tdol]

They're better with the article. Without it, I would say that 3 is wrong, but with it, it is OK. However, I still prefer the others.

[snade17]

Thank you very much for your explanation. Your explanation helped me a lot in understanding these patterns.