Googled and found following explainations by a forum member on immigration.ca.
E-Case status for post 2008 applications (It is also applicable to pre-2008 applications, if ease is updated timely):
1. IN-PROCESS
(A decision has not been made yet.) Application Received by Citizenship and Immigration Canada (CIC)
We have received your application and will review it in order of receipt. We will send you an acknowledgement letter.
Documentation Verified by CIC
We are reviewing your application to make sure it is complete and that no documents are missing. We will return incomplete applications for resubmission.
An Interview May be Required
We will review the application and decide if an interview is necessary. If so, we will inform you in writing of the date, time and location of the interview.
2. WITHDRAWN
(An application can only be withdrawn when it is IN PROCESS.) Application Withdrawn
You may only withdraw your application before the Visa has been issued. There are no refunds after processing has started.
3. DECISION MADE
(A decision has been made at this point.)
Medical Results Received by CIC .We have received your medical results. We will contact you only if additional tests are needed.
Approval Status Determined
Your application will be either approved or rejected. We will inform you of the decision in writing.
Permanent Residence Status Determined
If your application is approved, we will send you your permanent resident documentation and a letter saying what we need to finalize your permanent residence.
4. COMPLETE
(This is the last step in the processing of your application.) Applicant Arrives in Canada and is Granted
Permanent Residence
You will need to meet with an Immigration Officer who will verify your documents and grant you permanent residence if all is in order.
Soruce: (use copy & Paste to go on following link)
immigration.ca/forum/forum_posts.asp?TID=75&PN=159&title=2007-london-chc-applicants-sap
Hope this will be helpful
