| CPC H04L 67/10 (2013.01) [G06F 9/451 (2018.02); G06F 16/958 (2019.01); H04L 67/02 (2013.01); G06F 9/44505 (2013.01)] | 17 Claims |

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1. A method for webpage composition, comprising:
during development of a web application, receiving a request for a webpage for a business object type, the request comprising a business object type identifier of the business object type;
receiving an expression for selecting an instance of the business object type from a plurality of instances of the business object type, the expression specifying a data source and an activity fragment; and
generating the webpage, the webpage comprising a user interface (UI) widget for the business object type and an instruction for prepopulating the UI widget with data from the instance of the business object type, the instruction including the expression, the expression executable to select the activity fragment and to perform an action on data from the data source to generate a result identifying the instance of the business object type to use to prepopulate the UI widget.
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