Generic role assignment is a programming abstraction that supports the 
assignment of user-defined roles to sensor nodes such that certain conditions 
are met. Many common network configuration problems such as coverage (assign 
roles ON and OFF to sensor nodes such that ON nodes cover a physical area with 
their sensors), clustering, or in-network data aggregation can be formulated 
as role assignment problems. Building on our previous work in this area, we 
propose an extended role specification language that supports the minimization 
or maximization of the use of a given role. Moreover, we provide a mapping of 
this language to integer linear programs and implement this mapping. We show 
how the resulting tool can be used analyze aspects of role specifications such 
as feasibility and optimality.