| Abstract [eng] |
Nowadays it‘s becomming more and more difficult to write programs that behave correctly in the presence of run-time errors. Existing programming language features often provide poor support for executing clean-up code and for restoring normal state in exceptional situations. The main aim of this work is to establish a certain classification that can serve as a tool for understanding how to develop more efficient and more robust software systems. It presents a unified pattern called the Error-Handling Framework, which is targeted directly at different error handling design and implementation issues. Additionally, in order to show how this pattern can be achieved in practical application, an ATM Simulation System is analyzed and transformed into a system that is able to handle the load of various planned and unplanned exceptional situations. Each step of the way results are carefully evaluated by providing the list of their stronger and weeker sides. Finally, an evaluation method showing how error-safe the new ATM simulation system is will be provided along with the concluding results. |
