In computer science there is the term real-time. Is there any word to say something is not real time? Non-real time doesn’t sound good to me.
Answer
Lets take an example here:
You login to your Facebook account and post a comment. How Facebook updates this comment to your Facebook wall and your friends wall & also the time delay will determine the update mode.
(although there are other parameters also).
1. Real Time- Comment is updated online and delay is less than 2 seconds.
2. Near Real Time- A delay of 2~10 seconds is expected, however, exact definition depends on SLA between the involved parties. Facebook works on near real time mode.
3. Offline Mode or Batch Processing- The data is updated via files to the database, exact definition depends on SLA between the involved parties. In general time delay is in hours (in every ~6 to 12 hrs). Offline or batch processing is answer to your question.
Attribution
Source : Link , Question Author : kmetin , Answer Author : Ankit
