TREES OF DAMAGES AS A MODEL OF RISKS ASSESSMENT FOR AVAILABILITY LOSSES AFTER CHANGES IN FINANCIAL INFORMATION SYSTEMS

Abstract

The article deals with the methodology for risks assessment of availability losses in financial information systems after changes made in them by using trees of damages. A description of damages tree generation for each identified possible event is presented that potentially can lead to the system availability loss. An example is given, illustrating the methodology application that gives the possibility to choose the optimal software testing strategy.

Keywords

• information systems
• estimation
• analysis
• availability
• risk of availability loss
• damage
• tree of damages
• software testing strategy