Step 1. Formulate FCCP model (Eqs. (1a)–(1c).
Step 2. Transform fuzzy parameters ecj in the objective function into
their expected values (Eq. (3a)).
Step 3. Convert the credibility constraint (Eq. (1b)) to its crisp equivalent
(Eq. (3b)).
Step 4. Obtain the optimized solutions (xopt) under different credibility
levels.
Step 5. Obtain optimized objective (ef opt) by substituting xopt to original
objective function (Eq. (1a)).
Step 6. Stop