Today in the humanitarian field there are calls for a shift from being anecdote driven to evidence driven. Currently, the humanitarian system shows significant weaknesses in data collection, analysis and response in all stages of a crisis or emergency. The present humanitarian system is much less evidence driven than it should be and than it would like to be.
To ensure that vulnerabilities, needs and access to life-saving services are best understood and responded to, it is necessary to collect information based on sex and age. Having information gaps on sex and age limits the effectiveness of humanitarian response in all phases of a crisis. Proper collection, analysis and use of sex and age disaggregated data, or SADD, allows operational agencies to deliver assistance more effectively and efficiently than without SADD. Doing this increases the effectiveness and efficiency of "saving lives and livelihoods" in a crises. The net outcome is both more lives saved and a reinforcement of basic human rights in a situation where rights are often brushed aside.