For a phrase representing the highly unformalized concept of where a software project may go in the future relative to unpredictable customer, business, resourc

For a phrase representing the highly unformalized concept of where a software project may go in the future relative to unpredictable customer, business, resource and developer needs, "family" seems appropriate. There is continuity, but not necessarily any other logical relationship being maintained. Sets of differential equations with specifiable constants have more in common with a compiler exposing customizable parameters, forming a "class" of behaviors. Or a parser compiler taking a grammer, and producing a well defined "class" of parsing algorithms.