Why dont you make a list of ur duties and your designation with ur educational qualification to noc-cnp @ workingincanada.gc.ca
They will be the best judge. Ofcourse its ultimately Visa officers final decision but at least u will get a reply from CIC...
I had sent a similar request to them...there is a content in their email which should be good for you...
[size=10pt][size=10pt][size=10pt]The National Occupational Classification (NOC) codes are determined by the Skill Type and Skill Level. The Skill Type represents the type of work performed as well as the general industry of employment, in order to easily indicate the segment of the world of work. The Skill Level represents the education required to perform the work. However, the NOC does recognize the fact that most jobs require multitasking or performing more than one duty. As a result there is a 51% rule that can be used as a guideline. Simply put, 51% of the job functions must be contained in the main duties of the selected NOC description.
The final decision for selecting the most appropriate National Occupational Classification (NOC) code is each individual's responsibility as you know your education, skills and abilities better than anyone else. However, the ultimate decision remains the responsibility of Citizenship and Immigration Canada (CIC) as they are the only ones who have the authority to determine if the information provided meets their criteria.[/size][/size][/size]
Hope this helps. So its a combination of ur duties and qualification that make u qualified for the particular NOC