Denzel analyzed World Bank existing prequalification and bidding documents for other types of contracts, as well as existing management contracts used in Ghana, Lesotho, Gaza, Albania, Tanzania, and Armenia. He interviewed World Bank task managers, procurement staff, and private sectors operators who had been involved in these transactions to develop a view of best practice. He prepared generic cross-sectoral prequalification documents, generic cross-sectoral sample bidding documents, and a a set of technical notes for each sector.