The director is the person who coordinates all aspects of the show. From telling actors how to play their scenes, checking costumes and props are accurate, the director is in charge. the director will also oversee all rehearsals any will have the final say on how the production and script are interpreted.
The assistant director is the right hand person for the director. He or she will be given tasks or specific parts of the production to manage and they will under the direct control of the director. There may be several assistant directors who each have responsibility for parts of the production.
The musical director’s role is to make sure the music for the production is appropriate for the script and that the band plays the music as planned. the musical director works closely with the directors to make sure that the right musical atmosphere is created and that all the music is timed correctly. The musical director may also need to work with choreographers and sound engineers to make sure that all the everything is coordinated.
The stage manager is the person who makes sure everyone is in there right place at the right time, that all the equipment is set up and that all the technicians are where they should be. This role is vital for making sure that the production runs to time and that all the sets and scene changes take place when they should. This person knows everything about the production and is in charge of all practical operations leading up to and during the production.
The Deputy Stage Manager takes instructions from the SM and makes sure that each department is set up for the show. They will attend all rehearsals, make sure all lighting and sound are set up, check the scenery and costume departments have followed all instructions and generally make sure that each department is ready.
The Assistant Stage Manager takes instructions from the DSM and May have responsibility for some specific departments such as props or costume. They also need to know the script really well and attend the rehearsals. The may also be responsible for making sure that all props are returned to the right place so that they are ready for the next production.
The Costume Designer works closely with the Director to decide the theme of the production. They will discuss the era of the production, the general look that the director wants to achieve such as modern or a specific period in time. The costume designer will then work out what the costumes will look like and will calculate cost. They will generally have a budget and will need to work out the best options that can be afforded. They will then discuss their design proposals with the director and once agreed they will instruct their production team to have the costumes made. The designer will also take into account what type of movements are required for each costume depending on the role of the he actor. This can affect the type of costume that needs to be made.
The Wardrobe Assistant looks after all the costumes once they are made and makes sure that the actors are properly dressed in there for each scene. They will need to clean and maintain the costumes, make sure they fit and to do any minor repairs and alterations as needed.
The Lighting Director works with the director, the music director and the set design team to decide what the mood and themes should be to demonstrate the the script of the play or production. The lighting director hen decide what equipment is needed and will instruct the lighting team how to set up and programme it and will make sure that the director is happY with it.
The lighting programmer will take instructions from the lighting director and after all the equipment is set up they will programme to the specifications that the director has given. They will work throughout the script to make sure that the lighting cues are in the right place.
The lighting operator rigs and sets up the lighting hardware and any other visual effects such as haze and smoke machines. They are technicians and do will climb rigging and deal with any electrical or equipment issues, making sure that everything is in the right place and that it works. During productions, they will operate the lighting desk and follow all the cues se up by the lighting programmer.
The sound Operator makes sure that all microphones are correctly set up and working and will control the mixing desk throughout the production. They work with the band to make sure that the sound is properly mixed, that the audience can hear all the actors and music and that any effects are on cue.
EDIT AB 01/10/13 - Look at more departments, there is no mention of set or construction! More detailed analysis of how departments interalate would help you here.