what is difference between HDI(Human development Index) and HPI (Human Poverty Index)?

HDI
http://en.wikipedia.org/wiki/Human_Development_Index
http://hdrstats.undp.org/en/countries/profiles/PAK.html

this indicator includes
-GDP per capita income
-Life expectancy
-Education attainment

HPI

http://en.wikipedia.org/wiki/Human_Poverty_Index
http://en.wikipedia.org/wiki/Poverty_in_Pakistan
http://www.unibas.it/desertnet/dis4m...erty_index.htm

this index includes
-life expectancy
-basic education
-overall economic provisions