The new technological advances allow the gathering, in real competition time, of all the events that have the greatest influence on a team's sporting performance. Because of the absence or deficits of the current tools of game analysis in handball, and as an aid to analyze tactical parameters by recording performance indicators, a tool for monitoring and modeling competitive activity in handball was designed and validated through a specific software implemented in a portable tactile device of recording in real time. The observation tool offers the possibility of recording simultaneously individual, spatial, situational and temporal actions. From the register of these actions, you can analyze the offensive and defensive efficiency, and establish models of game that serve to improve the performance of the teams in each of the phases of game.The record of the actions of game by the instrument of observation will help coach to take decisions due to much information and analysis of individual and collective behavior of his team and the opposing team.