, j \in J \space
  \mathrm{(eqn \space 1g)} \\
  E_{f} \geq 0, E_{f} \leq 1 \space \forall \space b \in B \space
  \mathrm{(eqn \space 1h)} \\
  G_{f}, X_{i}, Y_{j}, Z_{fj} \in [0, 1] \space \forall \space i \in I, j
  \in J, f \in F \space \mathrm{(eqn \space 1i)}
  $$</p>
<p>The objective (eqn 1a) is to maximize the weighted total number of the
features that have their persistence targets met.
Constraints (eqn 1b) calculate which persistence targets have been met.
Constraint (eqn 1c) limits the maximum ex