The RACI 
model is a straightforward tool that can be used for identifying roles and 
responsibilities to make the processes happen.  RACI is an abbreviation of:
  
  
    | 
       R  | 
    
       =  | 
    
       Responsible - owns the problem / 
      project  | 
  
    | 
       A  | 
    
       =  | 
    
       To whom "R" is 
      Accountable - who must sign off (Approve) on work before it is effective 
      and who are ultimately accountable for the correct and thorough completion 
      of the deliverable  | 
  
    | 
       C  | 
    
       =  | 
    
       To be Consulted 
      - has information and/or capability necessary to complete the 
      work  | 
  
    | 
       I  | 
    
       =  | 
    
       To be Informed 
      - must be notified of results, but need not be 
  consulted  | 
 
It can 
be useful to add the concept of Sponsor or Supportive:
  
  | 
       S  | 
    
       =  | 
    
       Can be Sponsor or Supportive - can provide resources or play a 
      supporting role in implementation  | 
 
Gentlemen,
 
   
Please, I´m not sure I have the correct understanding for these two 
concepts.
 
1)      
What 
owner means and what responsible means.  
2)      
Are 
they synonyms? 
3)      
Is 
responsible the role that executes the work? 
4)      
What 
is the relation with the idea of accountable (RACI 
concept)?
 
   
I´d be glad if you can point me some references in order to better understand 
it.
 
Thank 
you,
Maciel