Assertion: planning poker | /r/AtLocation | paper
Facets:
value: in 2002
type: TEMPORAL
value: by james grenning
type: OTHER
Source sentences:
text: Planning poker, which was first described in a paper by James Grenning in 2002, is a more informal version the Wideband Delphi Method, an approach to achieving consensus developed by the RAND Corporation in the 1940s.