Juan is one of the founding partners of Sistemas Integrales and has devoted his professional career to the design and implementation of household, impact evaluation and agricultural surveys. He was a member of the team that developed and marketed ARIEL, one of the first statistical softwares anywhere and exported worldwide since 1972; and he is one of the creators

Jaime is one of the founding partners of Sistemas Integrales and is the company's legal representative. He is a qualified lawyer, with many years' experience in commercial law, and also holds a degree in Systems Analysis. He has acted as legal adviser to several IT companies and served for a time as President of Chile's Committee of Software Exporters.

Mario is a partner in Sistemas Integrales and, over nearly three decades, he has contributed his expertise to the design and analysis of dozens of large-scale surveys in Africa, Latin America and the Caribbean, Europe and the Middle East. His participation in these projects has included sampling, data quality assurance, questionnaire design and fieldwork organization,

Victor is an engineer and mathematician with more than three decades' experience in surveys and censuses.

He has a long history of successful participation in Demographic and Health Surveys and Living Standards Measurement Surveys in many countries worldwide. He has worked with international organizations on projects covering a full range

Alvaro's experience in survey management covers household surveys, impact evaluations and census activities; data management, training, and data quality assurance. His contributions have ranged from designing questionnaires, through developing and testing data-entry programs, to planning and supervising field operations.

Beatriz has contributed to the successful implementation, over the last two decades, of dozens of large-scale household surveys in practically every part of the world. She has participated at every stage of the survey process: planning the budget and calendar of activities, working with stakeholders to design the questionnaires, planning and organising field-work,

Rodrigo has participated in household surveys and impact evaluations in Africa, the Asia-Pacific region, the Middle East, Latin America and the Caribbean. He has designed questionnaires and data-entry programs, and trained field staff in their use, for living standards and income and expenditure surveys in Bolivia, Bangladesh, Timor Leste, Mozambique and Yemen;

Nancy has spent much of her professional life as a university lecturer in mathematics and statistics at the University of Chile. Her doctoral research, at the Paris Universities, was in the statistical analysis of nutritional surveys and she went on to work as a statistical expert at the Food and Agricultural Organisation of the United Nations (FAO).

Fernando is a medical doctor and epidemiologist with a distinguished career in public service and the academic world. He was Chile's deputy minister of health for four years and, more recently, represented his country on the Executive Council of the World Health Organisation (WHO). He has designed and implemented major reforms to the Chilean health

Juan Claudio is a software designer and programmer, with many years' experience of developing solutions for both the private and public sectors. One of his first programming assignments was the updating of the user interface of Sistemas Integrales' statistical software ARIEL+. Since then, among many other achievements, he has developed a tool for

Gillian worked full-time for Sistemas Integrales in the 1990s, when she edited its clients' magazine ARIEL-Club. Since then, she has contributed to occasional projects with the company; for example, she helped to draft a reference guide for survey managers.

While living in Santiago,

Alejandro has over thirty years' experience in surveys and, especially, censuses. He worked for many years in the National Statistical Institute of Chile (INE), ultimately as head of the IT department, where he was responsible for the technical and methodological aspects of three population and housing censuses and numerous census-related activities.

Wijnand is an expert in mapping and spatial analysis using GIS, satellite remote sensing, and GPS integration. He has applied this expertise to many projects around the world, in disciplines ranging from GIS modelling of land use scenarios, GPS surveying, disaster management and environmental and resource modelling.

Teresa is a statistician and public administration specialist, with over twenty years' experience in the design and processing of large-scale surveys. She has particular expertise in the field of social policy monitoring, notably in the areas of education and poverty reduction. She was  involved for many years in a public administration programme to support the decentralisation

Valerie is a mathematician and statistician who has contributed to the success of dozens of surveys in Africa, the Asia-Pacific region, the Caribbean, Europe and the Middle East. She focuses on the areas of employment, health and agriculture. She has participated in household budget or standard of living surveys in countries from Albania to Yemen, with most of the