The fast-growing population and urbanization continue to drive the global demand for water resources. According to the estimation of the Organization for Economic Cooperation and Development (OECD), the global demand for water resources is projected to increase by 55% by 2050. However, extreme weather events are likely to become more frequent and intense due to global warming, and thus pose challenges to accessing available water. Rapid industrialization and urbanization have caused various impacts on water resources. Industrial waste has contaminated residential areas, and wastewater discharged into rivers or seepage into the ground leads to water pollution and environmental damage. To lessen these effects, water purification and water quality monitoring mechanisms for end users grow in demand. Context-aware applications are also gaining public attention. According to MarketsandMarkets, a market research agency, the global smart water resources management market will reach US$22.4 billion by 2026, with an average compound annual growth rate (CAGR) exceeding 10% in the next three years.