System and method for processing markup language templates from partial input data

Template processing techniques to generate documents, such as HTML documents, in situations where the template depends on input data that are available in different locations are provided. A template can include a plurality of template-processing instructions which can specify how to bind input data from a data structure to the template. The input data can be declared as template parameters in the template. According to aspects of the present disclosure, the template can include an annotation associated with one or more of the template parameters. The annotation can be indicative of the availability of input data at the server or at a client device.