In this work a new practical tool for the observation, codification, analys
is and evaluation of a specific behavior context, football association or s
occer, is presented The codifying tool, made within the framework of the ob
servational methodology, will allow full description of the playing action
in soccer. Assuming that soccer is a colaboration-oposition game, certain t
ypes of strategic behaviors of interaction between teams will be retained,
as well as interaction contexts where they occure and place and space. Indu
ctive viewpoint was the main scope of this research. Data quality was contr
olled and guaranteed by the use of several procedures along the whole proce
ss, whereas agreement and generallizability analysis were the most importan
t ones.