Actors have their lines memorized; lights, sound, scenery, and costumes are fully designed and completely constructed. If the production is a musical, then the pit orchestra has rehearsed the music completely, and any dancers are prepared with their choreography memorized. During technical week all of the various technical elements are fully implemented, making the rehearsals very similar to the actual performance.
Actors remember their lines; lights, sound, scenery, and costumes are meticulously planned and fully realized. If the production is a musical, then the pit orchestra has practiced the music thoroughly, and any dancers have memorized their choreography. During technical week all of the various technical elements are fully integrated, making rehearsals very similar to the actual performance.