This practice-based paper looks at the nature of dramaturgical development in the theatre, and at the role of the dramaturg. It has two objectives: to examine the meaning of key terms such as ‘play text’, ‘dramaturgy’ and ‘development’, and to look at how, and according to what values, dramaturgical interventions into particular play texts are best structured. The differences between production, generative dramaturgy and adaptive dramaturgy are detailed, and the analysis of play texts using simple categories such as plot, character and language is briefly explored. The conclusions clarify some of the predicates of dramaturgical development as they impact on the theatre-making process today and identify some of the fundamental problems and challenges thereby associated with the role of the dramaturg.