Abstract
We are developing a SGML-DTD design support system with GUI (Graphical User Interface) using object-oriented approach. Here, SGML is ISO 8879: Standard Generalized Markup Language. In a SGML-based system, a structure of document is defined in a DTD (Document Type Definition) written in SGML. Our system has 3 features as follows; (1) a document structure is presented in a tree whose node indicates an element; (2) a user can define / update the structure using GUI; (3) the system outputs the structure in a form of DTD. We are developing the system using C++, OSF/Motif and X-Window. The system will decrease difficulties in designing DTD.
