The definition of “easy usage” that Locapoint aim to be (The Story of Locapoint: 4)The definition of “easy usage” that Locapoint aim to be
I have to define the meaning of “easy usage” for Locapoint, in another word, the significance of existence of Locapoint.
First, I re-consider merits and demerits of traditional latitude/longitude format. One of demerit is of course its length. That is why many ‘geo-codes’ are developed. In addition, other demerits are
1.Needs two data (latitude and longitude) to specify a location
On the other hand, merits are
1.Can be used at any precision level
3.Values and physical location is continuously related. Increase or decrease in value in latitude/longitude can be intuitively related to physical location movement to North, South, West, and West.
4.Can locate on map, without electronic devices
Reviewing characteristics of traditional Lat/Lon format, it is not bad. Many ‘Geo-Codes’ is certainly shorter than Lat/Lon, but sacrifices most merit of Lat/Lon format. May Geo-code require electronic devices to encode/decode, and code-place relativity is not intuitive.
When I start developing Locapoint, I was about to startup a kind of ‘distress call dispatching service’ business. So, Geo-code that can’t be easily decoded into Lat/Lon without electronic devices is out of my option, because I mainly consider emergency or distress situation usage.
I also focuses on audio recognize ability. I imagine a emergency situation, digital devices are down or out of battery, and only you can use is ‘primitive devices’ such as telephone, walky-talky, Radio communication, or similar ‘analog audio’ devices.
If Geo-code is confusing, miss-listening the code could cause fatal result.
From this viewpoint of “easy usage for human”, I require Locapoint following restrictions.
1. Easily decodable to latitude and longitude with calculator.
2. Easy to read, say, listen.
3. Global availability.
4. Enough precision (hopefully, less than one meter = 3 feet)
5. Relativity between code value and physical location is intuitive.
These are very difficult conditions to realize. How other Geo-Codes is doing. What is merit and demerit of them?
Next, I’m going to introduce other ‘Geo-Codes’.