The process of incorporation depends on the type of entity you want to incorporate. For a limited company, you can have a 'numbered' or 'named' company.
A numbered company is comprised of three parts - the numbered part, which is assigned by Corporate Registry, the word 'Alberta', and your choice of one of the legal elements (e.g. 1234567 Alberta Ltd). A NUANS reports is not necessary for a numbered company.
A NUANS report for a named company is required to ensure that no one else has the identical name. If the report shows similar names, you will have to decide if the name you want is too close to the other names listed on the NUANS report. The report is valid for 90 days, so if you wish to use that name, you must incorporate within that time period.