This volume contains the proceedings of the fourth
International Joint Conference on the Theory and Practice of
Software Development, TAPSOFT '93. Since the first in 1985,
the aim of these conferences has been to bring together
theoretical computer scientists and researchers in software
engineering with a view to discussing how formal methods can
usefully be applied in software development.
TAPSOFT '93 consists ofthree parts: an advanced seminar,
the Colloquium on Trees in Algebra and Programming (CAAP),
and the Colloquium on Formal Approaches of Software
Engineering (FASE). The advanced seminar includes four
invited surveys and four invited conferences. The selected
papers for CAAP are organized in seven sessions:
specifications and proofs, concurrency, automata and
counting, constraints solving, rewriting, logic and trees,
analysis of algorithms, and a common session with FASE on
type inference. The selected papers for FASE are presented
in eight sessions: case studies in formal design and
development, compositionality modules and development,
formal development, foundations and analysis of formal
specifications, verification of concurrent systems, model
checking, parallel calculus, and a common session with CAAP
on type inference.