cer?tif?i?ca?tion1 [uncountable and countable]
an official document that says that someone is allowed to do a certain job, that something is of good quality etc:
We successfully completed the certification for open water diving.
2 [uncountable]the process of giving someone or something an official document that says they are allowed to do a certain job, that something is of good quality etc
certification ofcertification of competence
http://www.ldoceonline.com/dictionary/certificationcer?tif?i?cate [countable]
1
an official document that states that a fact or facts are true
birth/death/marriage certificate (=giving details of someone's birth, death, or marriage)
2 an official paper stating that you have completed a course of study or passed an examination:
a degree certificate
These are definitions of certification and certificate each and when certification is used as a meaning of an official document that says that someone is allowed to do a certain job, that something is of good quality etc, I think that the word can be used the same as certificate.
So the two words are interchange for the same meaning in some context? Or is there a meaning difference between them? What do you native English speakers think? Thank you so much as usual.