A method and supporting application-development tool are provided for building such a set of application flows. The method includes the steps of (a) a developer obtaining a “generic” flow model for the application; (b) the developer specifying the set of targets; (c) automatically creating a specialized flow model for each of the targets; (d) the developer modifying at least one of the generic flow model and the specialized flow models; (e) automatically generating specialized applications corresponding to the specified specialized flow models; and (f) deploying the specialized applications on the corresponding targets.