and of the international community to accelerate their efforts towards achieving the goal of providing adequate water supply and sanitation facilities for all. The report also provides a qualitative and quantitative comparative analysis of progress achieved during the Decade in terms of service coverage for drinking water supply and sanitation, and suggests proposals for action in the 1990s. 3. The quantitative comparative analysis of service coverage is based on information provided by Governments to the World Health Organiaation (WHO) in response to the recommendations of the Mar de1 Plata Action Plan A/ to strengthen sector information in order to facilitate the evaluation of the Decade. Additionally, information on sector investments, particularly those of the external support agencies, has been provided through the Country External Support Information (CESI) system developed by WHO witlr support from Deutsche Gesellschaft fur Technische Zusammenarbeit (GTZ), the Swiss Development Corporation (SDC) and the United Nations Development Programme (UNDP). Qualitative information has also been provided by Governments and from projects, supplemented by information from the off ices of the resident representatives of UNDP and from the donor community, 4. The lack of adequate information on water supply and sanitation at the national level is still a serious constraint to sector planning and management. Nevertheless, the level and quality of national reporting has steadily improved throughout the course of the Decade. Accordingly, the exJ.sting data are considered to be reliable and the proportion of the global population represented sufficiently high to enable Decade trends and developments to be identified. However, it may be noted that coverage figures often refer to minimum levels of adequacy in terms of both the quality of the services provided and the density and proximity of services. The definition of what constitutes adequate urban and rural water supply and sanitation services has been left to Governm~>nts, since this concept is related
**Analysis**
The text appears to be discussing the progress made towards achieving the goal of providing adequate water supply and sanitation facilities for all, as well as the efforts of the international community to accelerate this progress. The report also provides an analysis of the data collected from governments and external support agencies. This suggests that the category should be related to health, development, and international cooperation.

**Category**
Health, Natural resources and environment