sentences:  What started with a survey, ended with a housing exhibition.The alliance formed by the South African Federation and Mahila Milan, along with federations having similar goals, from more than 30 countries, are now united under the umbrella organisation of Shack/Slum Dwellers International (SDI).Among their many shared practices and objectives, these central hands-on housing design and development processes continue to explore and promise a sector house in the city.