On the relevance of formal methods to software development.- Combining algebraic and predicative specifications in Larch.- The role of proof obligations in software design.- Functional semantics of modules.- Intuition in software development.- A rational design process: How and why to fake it.- Formalization in systems development.- Specifying and prototyping: Some thoughts on why they are successful.- A formal specification of line representations on graphics devices.- Experiences with the PSG -- Programming System Generator.- Software construction using typed fragments.- Graph grammar engineering: A method used for the development of an integrated programming support environment.- Multidimensional tree-structured file spaces.- A theory of abstract data types for program development: Bridging the gap'.- Program development and documentation by informal transformations and derivations.- ASSPEGIQUE: An integrated environment for algebraic specifications.- Application of PROLOG to test sets generation from algebraic specifications.- A PROLOG environment for developing and reasoning about data types.- Algebraic specification of synchronisation and errors: A telephonic example.- Modelling concurrent modules.- Synthesis of parallel programs invariants.- Analyzing safety and fault tolerance using Time Petri nets.- Algebraic specification of a communication scheduler.- The integration and distribution phase in the software life cycle.- Formalized software development in an industrial environment.- Object oriented concurrent programming and industrial software production.- Experience of introducing the Vienna development method into an industrial organisation.- EDP system development methodology: Auditability and control.- Experiences with object oriented programming.