• Publications
  • Influence
Timestamps in Message-Passing Systems That Preserve the Partial Ordering
TLDR
This paper presents algorithms for timestamping events in both synchronous and asynchronous n1essage-passing programs that allow for access to the partial ordering in­ herent in a parallel system. Expand
  • 725
  • 42
  • PDF
Logical time in distributed computing systems
  • C. Fidge
  • Computer Science
  • Computer
  • 1 August 1991
TLDR
The partial ordering of events as defined by their causal relationships, that is, the ability of one event to directly, or transitively, affect another is defined. Expand
  • 536
  • 25
Current Research in Risk-aware Business Process Management―Overview, Comparison, and Gap Analysis
TLDR
This paper compares and classifies current approaches in the area of risk-aware business process management in order to identify and explain relevant research gaps. Expand
  • 79
  • 9
  • PDF
Partial orders for parallel debugging
  • C. Fidge
  • Computer Science
  • PADD '88
  • 1 November 1988
TLDR
We explore use of the partially ordered relation "happened before" to augment both centralized and distributed parallel debuggers to ensure that such errors are always detected and that the results produced by the debugger are unaffected by the non-determinism inherent in the partial ordering. Expand
  • 245
  • 8
  • PDF
Workflow simulation for operational decision support
TLDR
We present a new way of creating a simulation model for a business process supported by a workflow management system, in which we integrate design, historic, and state information. Expand
  • 171
  • 8
  • PDF
Access Control Requirements for Processing Electronic Health Records
  • B. Alhaqbani, C. Fidge
  • Engineering, Computer Science
  • Business Process Management Workshops
  • 24 September 2007
TLDR
We review the traditional security models for access control, Discretionary Access Control, Mandatory Access Control and Role-Based Access control, and use a case study to demonstrate that no single one of them is sufficient in a federated healthcare environment. Expand
  • 67
  • 6
  • PDF
Security Metrics for Object-Oriented Designs
TLDR
We focus on the design of an object-oriented application and define a number of information security metrics derivable from a program’s design artifacts. Expand
  • 32
  • 6
Further evidence of a relationship between explaining, tracing and writing skills in introductory programming
TLDR
We found that students who tend to perform reasonably well at code writing tasks have also usually acquired the ability to both trace code and explain code. Expand
  • 95
  • 5
  • PDF
Business Process Simulation for Operational Decision Support
TLDR
We investigate the requirements for a process simulation environment that allows simulation experiments to start from an intermediate execution state. Expand
  • 61
  • 5
  • PDF
Workflow Simulation for Operational Decision Support Using Design, Historic and State Information
TLDR
We present a new way of creating a simulation model for a business process supported by a workflow management system, in which we integrate design, historic, and state information. Expand
  • 57
  • 5
  • PDF