Per capita ecological footprint (EF), or ecological footprint analysis (EFA), is a means of comparing consumption and lifestyles, and checking this against nature's ability to provide for this consumption.
This article includes a list of references, related reading or external links, but its sources remain unclear because it lacks inline citations. (April 2016) (Learn how and when to remove this template message) A Product Requirements Document (PRD) is a document containing all the requirements to a certain product. It is written to allow people to understand what a product should do.
A document is a structured JSON document. There is no set schema for the JSON documents, and a document may contain any number of custom properties as well as an optional list of attachments. Document is an application resource and can be authorized using the master key or resource keys.