An Asset-Based Development Approach for Availability and Safety Analysis on a Flood Alert System

Dependability design of IT services including safety and availability analysis requires expertise and often takes long time to carry out. Efficient analysis of system dependability is thus a key to increase the productivity and quality of system development project in service provider. In this paper, we propose an approach to improve the process of system dependability analysis through asset-based development concept in which safety constraints, system designs, availability models, parameter values and empirical data are incorporated into project asset on the premise of reuse. A structure of asset for dependability analysis along with other software artifacts is presented. Through an example of availability and safety analysis of a flood alert system, we characterize the effectiveness of the asset-based approach.