Do you need bulk access? Do you need bulk access?

Get a service plan

Wrongly blocked?

● 177,165 tall buildings 53,770 companies

Add building Upload

personal observation

Direct experience of data by the person entering it.

Data taken from personal observation is anything with an unmediated relationship between the fact itself and the person who records it.

This is only a good source for certain kinds of data. For example, the year a building is built can be taken from personal observation if someone witnesses its completion (i.e. can pin the completion down to a certain year or month). Data which can be counted, such as the number of floors or elevators, can also be gathered this way, but data which requires measurement cannot.

When personal observation is valid for a data field, it is generally a very good source of the data.

Related

measurement

My SKYDB join sign out sign in

Add building Upload Activity Join SKYDB

You need to be signed in to do this.

Sources increase data credibility. Show default source

Select a structure to edit.

Internal Comments

Enter source for whole object

Used as source for every field you change or enter.

Type of source

Date witnessed

You need to be signed in to do this.

You need to be signed in to do this.

Sources increase data credibility. Show default source

Select a structure to edit.

Enter source for whole object

Used as source for every field you change or enter.

Type of source

Date witnessed

You need to be signed in to do this.

Sources increase data credibility. Show default source

Select a structure to edit.

Enter source for whole object

Used as source for every field you change or enter.

Type of source

Date witnessed

You need to be signed in to do this.

Sources increase data credibility. Show default source

Select a structure to edit.

Enter source for whole object

Used as source for every field you change or enter.

Type of source

Date witnessed