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As large systems evolve, their architectural integrity tends to decay. Reverse engineering tools, such as PBS [7, 19], Rigi [15], and Acacia [5], can be used to acquire an understanding of a system's " as-built " architecture and in so doing regain control over the system. A problem that has impeded the widespread adoption of reverse engineering tools is(More)
As a software system evolves, its architecture will drift. System changes are often done without considering their effects on the system structure. These changes often introduce structural anomalies between the concrete (as-built) and the conceptual (as-designed) architecture which can impede program understanding. The problem of architectural drift is(More)
In this study we have tried to determine physician success in the collection of injury data during the emergency department visit. Prospective data were collected from all children between the ages of 0 to 18 treated for an injury. Data were collected at the time of the visit and by chart review the next day. At an urban, university-affiliated, children's(More)
As a software system evolves, its architecture will drift. System changes are often done without considering their eeects on the system structure. Consequently, the concrete as-built architecture becomes convoluted over time making continuing development and maintenance activities increasingly diicult and highly error prone. This problem of architectural(More)
I hereby declare that I am the sole author of this thesis. I authorize the University of Waterloo to lend this thesis to other institutions or individuals for the purpose of scholarly research. I authorize the University of Waterloo to reproduce this thesis by photocopying or other means, in total or in part, at the request of other institutions or(More)
BACKGROUND Chlorate poisoning as a cause of methemoglobinemia is regarded in current literature to be resistant to treatment by methylene blue due to the oxidizing and denaturing properties of the chlorate anion, and often leads to severe renal and hematological complications with a high mortality rate. Recent case studies suggest practitioners have(More)
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