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FSTTCS
2006
Springer
15 years 10 months ago
Branching Pushdown Tree Automata
We observe that pushdown tree automata (PTAs) known in the literature cannot express combinations of branching and pushdown properties. This is because a PTA processes the children...
Rajeev Alur, Swarat Chaudhuri
COMPSAC
2001
IEEE
15 years 10 months ago
Designing Role Hierarchies for Access Control in Workflow Systems
he correspondence between the role abstraction in Role-based Access Control (RBAC) and the notion of organizational positions, it seems easy to construct role hierarchies. This is...
Reinhardt A. Botha, Jan H. P. Eloff
IWPC
1998
IEEE
15 years 10 months ago
Rapid System Understanding: Two COBOL Case Studies
Rapid system understanding is required in the planning, feasibility assessment and cost estimating phases of a system renovation project. In this paper, we apply a number of analy...
Arie van Deursen, Tobias Kuipers
PEPM
2000
ACM
15 years 10 months ago
Calculating Sized Types
Many program optimisations and analyses, such as arraybound checking, termination analysis, etc, dependon knowing the size of a function's input and output. However, size inf...
Wei-Ngan Chin, Siau-Cheng Khoo
FASE
2010
Springer
15 years 10 months ago
Incremental Service Composition Based on Partial Matching of Visual Contracts
Services provide access to software components that can be discovered dynamically via the Internet. The increasing number of services a requesters may be able to use demand support...
Muhammad Naeem, Reiko Heckel, Fernando Orejas, Fra...