[GRAAP-WG] Modification to the wiki Page on Renegotiating anestablished Agreement

[Toshiyuki Nakata]

Many thanks to everyone who responded last week.
I still have not grasped all the implications but have updated the Wiki
(including adding the
references Michael kindly provided.) to propose  addressing  the following
issue.
1)new EPR or rewrite the old agreement => as Michael points out, accountants
should not use erasers.
Agreements as logs should not be erased/modified...
This means concept of superceded should be added. 
In order to avoid racing conditions,
Agreement state should be extended to allow transition from *observed* state
to *is-being-superceded* followed by either 
*superceded* (if the agreement modification is agreed to)  or *observed*
state (if the agreement modification is not agreed to..)

Best Regards
Toshi
-----
Toshiyuki Nakata 中田　登志之
Executive Chief Engineer, Central Research Lab. NEC
1753, Shimonumabe, Nakahara-Ku,
Kawasaki,Kanagawa 211-8666,Japan
Tel +81-44-431-7653 (NEC Internal 22-60035)
Fax +81-44-431-7609 (NEC Internal 22-60509)
  
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