Hi Shinji, >> What is 'virtual time flow'? > > In this scenario, it takes more than three month or year in real time. > It is not efficient. In this connectathon, I have assumed participants > exchange records that have ranged time, more than three month, within > some minutes > For example, > ? ?Real time ? ? ? ? record ? ? ? recorded time > i) ?09:00 ? ? ? ? ? ? Event1 ? ? ? 2008-11-22T10:15:43Z > ii) 09:01 ? ? ? ? ? ? Event2 ? ? ? 2008-12-11T09:22:10Z > ... >
Aha. I assumed that a health application would determine the 'recorded time' directly based on the 'Real time' (workstation's system clock). Here you seem to 'fabricate' a recorded time. >> > As your example, >> > 0) Adjust all workstation using NTP server >> >> There seems to be no reason for this, if we don't have to keep our >> workstations in synch. >> >> > 1) Tim send me the file recorded 'event1', '2009-10-30T12:18:11BST' >> > 2) I received file and record it after change BST to UTC 'event1, >> > '2009-10-30T09:18Z' and record with timestamp. >> > 3) I send Tim with the file recorded 'event2', '2010-01-22T01:22:22JST' >> >> So you change the datetime on your workstation independently of the >> other workstations, right? > > I cannot understand what you meant in 'independently'. > For some authentication procedure, we need to sync date tome on our > workstation. So wee need 0). > I think the time in record, when the event happened, does not depend on > the clock of the workstation. But the time the event was recorded does, see my assumption above. > Because data exchange is not always simultaneous and data record does > not progress just on time. > >> > 4) Tim receive the file and record 'event2', the time may be changed to >> > UTC/BST with timestamp. >> > >> > Each system generate sample records before connectathon. >> Before? That's to test the whole setup before the connect-a-thon, right? > > Connectathon is intersystem integration test. Data generation should be > tested before connectathon as unit test. Ah, OK. I was almost led to believe that, during the connect-a-thon, you wanted to exchange records that were fabricated before the connect-a-thon :-\ Cheers, Roger
