Do non-ACM events/conferences publish & index their final proceedings in the ACM digital library? I am looking into options to submit my research paper to this conference:
- http://www.icbdr.org/ or - http://www.iccbdc.org/index.html

Both of the links indicate that after acceptance, the paper will be published in ACM library and indexed in Scopus and EI. But after I discussed with my colleagues they said that there is a chance of being a scam.

I checked the ACM main events but did not find any of the above-mentioned conferences but instead, I found them in Non-ACM Events http://www.acm.org/conferences/non-acm-events.

Does it mean that the work will be published and archived in ACM library?

UPDATE: I contacted the Elsevier Ehelpdesk and got the following reply: 


  Dear xxxxxx, Thank you for reaching Elsevier Ehelpdesk regarding
  Scopus Indexing.   The 2017 International Conference on Cloud and Big
  Data Computing (ICCBDC 2017) is set to be published under the
  International Conference Proceedings Series by  ACM as seen on their
  site http://www.iccbdc.org/index.html.   I can confirm that the
  International Conference Proceedings Series by  ACM is already indexed
  in Scopus which has several conference titles already indexed.   Once
  a conference is is published, the publisher will be processing the
  title to be included in Scopus to be indexed.   I hope I have provided
  you with everything you need. Should you have further query, please
  don't hesitate to email me back. Kind regards,
Yes, but there are rules.

There are three ways for conferences to have their proceedings published in the ACM Digital Library.

What most people mean by an "ACM conference" is a conference that is sponsored by ACM or one of its special interest groups.  Proceedings of all ACM-sponsored conferences are published in the ACM Digital Library.  ACM sponsorship must be advertised in all conference publicity, including the conference web site and call for papers.

Conferences can also be held in cooperation with ACM.  In-cooperation conferences can apply for their proceedings to be published in the Digital Library, but not all such applications are approved.  Cooperation with ACM must be advertised in all conference publicity, including the conference web site and call for papers.  In particular, in-cooperation conferences cannot claim to be sponsored by ACM.

Conferences can also apply to publish their proceedings in ACM’s International Conference Proceedings Series without sponsorship or cooperation.  These conferences are allowed to use a special ACM-ICPS logo on publicity materials to advertise the publication agreement, but they cannot claim to be sponsored by or held in cooperation with ACM.  This is the agreement advertised by ICCBDC.

Nothing on the ICBDR web site suggests that their proceedings will be published in the ACM Digital Library, so they almost certainly won't be.

(Indexing is a separate question.  A very small number of proceedings series like VLDB are indexed in the Digital Library even though they are not published by ACM.)