Comparative Study of Exception Handling Mechanisms for Building Dependable Object-Oriented Software

摘要

Modern object-oriented systems have to cope with an increasing number ofexceptional and incorporate fault tolerance activities in order to meet the system's dependability requirements. With such systems growing in size and complexity, employing error-handling techniques while satisfying the requirements of software quality, such as maintainability and reusability, are still deep concerns to engineers of dependable object-oriented systems. An exception handling mechanism is one of the most important schemes for detecting and recovering errors, and structuring the fault tolerance activities incorporated in a system. However, the current lack of suitable exception handling mechanisms can make an application non-reliable and difficult to understand, maintain and reuse in the presence of faults. The purpose of our paper is to investigate the applicability of the existing exception mechanisms of object-oriented programming languages for developing dependable object-oriented software with effective quality attributes.