Learning alliance: a series of interconnected multi-stakeholder platforms at different institutional levels (national, district, community, etc.), aiming to speed up the process of identification, development and scaling up of innovations. [Source: Smits, S., Moriarty, P. & Sijbesma, C., 2007. Learning alliances : scaling up innovations in water, sanitation and hygiene. (Technical paper series / IRC ; 47). Delft, the Netherlands. P. 3].