Also read through this:
"Canadian work experience
(3) For the purposes of this section, Canadian work experience is work experience that
(a) is acquired by a foreign national in Canada in one or more occupations listed in Skill Type 0 Management Occupations or Skill Level A or B of the National Occupational Classification matrix;
(b) consists of full-time work experience, or the full-time equivalent for part-time work experience, with one or more employers;
(c) is acquired within the 10-year period preceding the day on which points are assigned to the foreign national under subsection (1); and
(d) is remunerated by the payment of wages or a commission.
Requirements
(4) In order to be assigned points under subsection (1) for their Canadian work experience, a foreign national
(a) must specify in their expression of interest the four-digit code in the National Occupational Classification that corresponds to each of the occupations they have engaged in while accumulating their Canadian work experience; and
(b) must have performed the actions described in the lead statement for the occupation as set out in the occupational descriptions of the National Occupational Classification, as well as a substantial number of the main duties, including all essential duties, as set out in the National Occupational Classification."
http://www.cic.gc.ca/english/department/mi/express-entry.asp
And this:
"Skilled work experience
To be considered for the Canadian Experience Class, you need to have Canadian skilled work experience within three years of applying. According to the Canadian National Occupational Classification (NOC), skilled work experience means:
Managerial jobs (NOC skill level 0)
Professional jobs (NOC skill type A)
Technical jobs and skilled trades (NOC skill type B)
Your experience must be at least 12 months of full-time (30 hours of paid work per week or more) or an equal amount in part-time hours.
Full Time
30 hours/week for 12 months = 1 year full time (1,560 hours)
Part time
15 hours/week for 24 months = 1 year full time (1,560 hours)
Or
30 hours/week for 12 months at more than one job = 1 year full time (1,560 hours)"
http://www.cic.gc.ca/english/immigrate/cec/apply-who.asp