2 ways of updating information
On 2017-03-31 22:37:07
Statistical data like water level in wells can be updated in two ways, and unfortunately in both the cases you would say "updated every 21 days".
Say you have 83 wells, and want to keep your database updated... Hence you start collecting data. This collection could have been done in two ways:
- Visit 83/21 wells every day
- Visit all the wells every 21st day
2nd one most probably requires more technological advancement.
I would be glad if someone tells me what are the names given to both the ways of updating information.