If your midwife or doctor are contemplating inducing your labor, they will use the Bishop’s Score to see how ready you are. The Wikipedia article goes into detail about scoring. Keep in mind that your cervical readiness will be looked at: how ripe, how thin, how dilated, how anterior. As well as how engaged your baby’s head is in your pelvis (station). The modified Bishop’s Score takes into account previous vaginal births, if your bag of waters is intact, if you are diagnosed with pre-eclamsia and other things. The higher the score, the easier and more likely an induction of labor will work.
Keep in mind that your labor should be induced only if there are medical indications for doing it. If you can avoid having your labor induced, do so! It is easier to avoid an epidural when you go into labor on your own.