Kein Komma. Keinesfalls.

Ein Komma aber vor deinem 'ob' in deiner Frage.

Lieber immer mehrere Antworten abwarten... Öfter als es einem lieb ist, sind #1 posts zu korrigieren.

Aber in diesem Fall ist es klar. Siehe auch die "Regeln" zur Kommasetzung, u.a. in x Fäden hier auf LEO. Man braucht Kommas im Englischen kaum.

Yes, in each case do use the comma.

Re the last half of the second English sentence: something is "off" there.

The comma here is optional. It's a matter of stylistic preference.

"Man braucht Kommas im Englischen kaum" is an absurd assertion.

Signed: A native English speaker.

1) *sigh* Ich wusste, dass mein Satz missverstanden werden könnte. Ich wollte dirtymike, Neuzugang auf LEO, etwas ganz ganz Allgemeines sagen. Schon stürzen sich hier die üblichen drauf.

2) Um das erste Komma (in der Aufzählung) geht es hier nicht, @Happy Warrior. Weder fragt der OP danach noch habe ich das Komma moniert; wie käme ich denn auch dazu.

3) Dass das Komma vor 'in order to' (wie im Deutschen mit dem erweiterten Infinitiv mit 'zu' nötig) optional ist? Das hätte ich gern noch von anderen gehört.

4) No need to send me private messages, John_2, that merely repeat what you wrote in #6. Thank you.

That's especially true when non-native speakers address style and and usage questions.

Das stimmt. Sag ich doch immer wieder selbst, seit Jahren. Nehme mich da doch nicht prinzipiell aus. ... Aber hier war es für mich eindeutig.

Findest du das Komma vor 'in order to' denn richtig, Jurist?

Und was sagen die anderen?

Re #10.

I'm not sure what you mean. My answer in #5 directly addressed the OP's question about the comma before "in order to."

#10: "Ich wollte dirtymike, Neuzugang auf LEO, etwas ganz ganz Allgemeines sagen" - and I am afraid you made a very incorrect assertion, both in general terms and in this particular case.

"Schon stürzen sich hier die üblichen drauf" - If I am one of those people being accused of belonging to the group of native speakers who complain of non-natives making categorical statements about my language, then guilty as charged - and proud of it.

"Aber hier war es für mich eindeutig" - what Jurist said.

#12. I would probably omit the comma in a shorter, simpler, sentence.

I went to the store [in order] to buy a loaf of bread. (Don't neglect #4.)

#17:

It won't work with the OP, though - and I disagree with #4.

In other words, are the systems on the market in order to determine which system is a reasonable alternative?

I don't think so--and that's why the comma is necessary.

I would tend to use a comma in (1) and omit it in (2), but the explanation would be rather lengthy.

 

If finding one or more alternatives is the final goal, consider using "and" rather than "in order to".   .

I agree that there is a problem with (2). I think the problem is the use of "determine", which (in this context) I would probably take to mean "find out", "ascertain". Depending on what you mean exactly, perhaps something like "define", "establish", "indicate", "show".

I also suspect "criteria used when comparing the systems" would be better (or possibly just "system comparison criteria").

 

I am also wondering how a single system is selected as a reasonable alternative (since more than one system might meet the criteria)  – and what you mean by "reasonable".

#23:

"Any sentence that is so long that the reference becomes ambiguous should be reformulated" - yes, where possible and appropriate.

"Adding a comma makes what comes next seem like either an afterthought or a contrasting element" - absolutely not. Commas are an integral part of the language, fulfilling a variety of functions incl. making the sentence clearer.