A software development environment may have a object interaction construction interface for defining sentences that include two or more sentence atoms in an ordered arrangement. The sentence atoms may be one of: a source object, an event, a target object, and an action. The object interaction construction interface may receive user input selecting the sentence atoms in a particular sequence. The object interaction construction interface may configure a menu list of available second sentence atoms according to the type of sentence atom selected as the first sentence atom. Throughout the sequence, the object interaction construction interface will self-configure the next menu list according to the type of atom selected in the previous selection. When the sentence is complete, the software development environment may generate program instructions and/or data structures to implement object interactions defined by the sentence, which may be used to build an application.