A spiral model of software development and enhancement
ACM SIGSOFT Software Engineering Notes
Specification of computer programs
Specification of computer programs
A calculus of refinements for program derivations
Acta Informatica
Formal methods in artificial intelligence
Formal methods in artificial intelligence
Software engineering mathematics
Software engineering mathematics
Introduction to knowledge systems
Introduction to knowledge systems
Dealing with non-functional requirements: three experimental studies of a process-oriented approach
Proceedings of the 17th international conference on Software engineering
Formal refinement patterns for goal-driven requirements elaboration
SIGSOFT '96 Proceedings of the 4th ACM SIGSOFT symposium on Foundations of software engineering
Proving the correctness of recursion-based automatic program transformations
TAPSOFT '95 Selected papers from the 6th international joint conference on Theory and practice of software development
MFPS '94 Proceedings of the tenth conference on Mathematical foundations of programming semantics
Rapid Development: Taming Wild Software Schedules
Rapid Development: Taming Wild Software Schedules
Systematic Programming: An Introduction
Systematic Programming: An Introduction
A Discipline of Programming
Formalisation Based on Understanding
FORTE '93 Proceedings of the IFIP TC6/WG6.1 Sixth International Conference on Formal Description Techniques, VI
Formal Methods and Social Context in Software Development
TAPSOFT '95 Proceedings of the 6th International Joint Conference CAAP/FASE on Theory and Practice of Software Development
A Tutorial on Nonmonotonic Reasoning
Proceedings of the Second International Workshop on Nonmonotonic and Inductive Logic
On the relation between argumentation and non-monotonic coherence based entailment
IJCAI'95 Proceedings of the 14th international joint conference on Artificial intelligence - Volume 2
How to infer from inconsistent beliefs without revising
IJCAI'95 Proceedings of the 14th international joint conference on Artificial intelligence - Volume 2
On specificity in default logic
IJCAI'95 Proceedings of the 14th international joint conference on Artificial intelligence - Volume 2
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Formal nonmonotonic reasoning provides a promising basis for meeting the demands inherent in the incomplete, evolving and inconsistent requirements that characterise large-scale industrial software systems. This paper explores formal reasoning in requirements analysis, design and implementation. It indicates how the notion of provability in maximal consistency logics might be used to extend current logical foundations for existing formal notations for specifying requirements. A number of definitions are then developed, using notions from level default theories to specify preference between consistent subsets of possibly inconsistent requirements, (partial) satisfaction of requirements by programs and by designs, the best subset of the requirements satisfied by a given design, implementation of a design and design improvement. These definitions provide a foundation for some very interesting directions for formal methods research.