Believing that a public Management begin with a font of datas perfect, we need to observe that the collection of samples of the informations should to be correct,where the Metrics of datas not give cause to deviation of the function,separating in choice of the Index (example : The paste that belong o problem/ Education, Security, Social Assistance, Exterior Commerce, among others),Problems,Possibles Causes, Datas, Possibles Solutions, Programs of Government, Action Plans, Budgets Executions, identified by rubrics, commitments,values to phases, time of life, total value,and etc.Some Index and Metrics relations,used in some Countries are:Index of Price, Open Credits Control of Sales Families, Assets Acquired, Growth Economics, Numbers of Post of jobs, Growth Enterprise, Tax on Importation Sector,Pooring,Fail of Food, Fall of Housing, Transposition of the Agropecuary, Court of Tax Mobiliary, Financing of Housing, Generation of Jobs,Open of Mobilary Credit, and etc. There are very methods of search of information, but the important is exactly the datas investigates;(A example basic, the book of Voltaire " O Men of Forty Shells " in The Geometry Part ) already the classification may to be by numbers ( quantitative research), letters (qualitative) or (mérit); index qualitative excellence, very, Good, so so, bad, terrible.See next class.