Software Failure Modes And Effects Analysis Research Articles

SFMEA assistant design method for control system using requirement modeling

Software Failure Modes and Effects Analysis (SFMEA) is an effective reliability analysis technique which is widely used in control systems. However, it is difficult to analyze the failure mode using traditional SFMEA method, as control system becomes more complicated. This paper proposed an assistant design method of SFMEA based on system requirement model, which would remedy the deficiencies in analyzing complex control system. An experiment shows that this method can be applicable to SFMEA for complex control system.

Analysis of software safety and reliability methods in cyber physical systems

The software-based systems, alone do not cause any risk; but the risk is posed when the software-based systems are considered in the context of general systems where potential risks or hazards exist. Cyber-physical systems are cited as instances of software-based systems. Nowadays, safety and reliability of cyber-physical systems are considerably important due to the increasing complexity of these systems. Risk management techniques are required to reduce the risk to an acceptable level. Generally, safety and reliability methods are important in a risk management process among them software fault tree analysis (SFTA) and software failure modes and effects analysis (SFMEA) methods can be utilised. The main purpose of this article is to provide a comprehensive survey and evaluation of the currently available approaches for software safety and reliability methods in cyber-physical systems in order to reflect the state of the art of this active area.

Software Safety Analysis of Ball Position Control System using SFMEA

Software Failure Modes and Effects Analysis (SFMEA) is a traditional system safety analysis technique which is widely used in the aerospace, automotive and other safety-critical intensive systems. However, traditional FMEA methods are difficult to identify and analyzing the failure modes which caused by the dynamic logical information between interfaces or functions, such as softwarehardware interaction. To intuitively assume the effects of module failures in a system, numerous approaches have been proposed. This work addresses the use of SFMEA by using an experiment for safety-critical embedded control systems. The work presented here provides a general example illustrating how SFMEA can be effectively applied to an 8-bit micro-controller (Chip 89S52) based computer control system having little or no hardware protection. This paper also describes Functional FMEA, interface FMEA, and detailed software FMEAs. The experimental results of SFMEA also found the hardware failures and memory faults. The safety analysis reveals several design deficiencies and physical faults for which modifications are needed. This paper also found that, when properly implemented SFMEA at the right point in the Software Development Life cycle, it makes requirements, design and code reviews more effective. It also identifies single point failures due to software.

A SFMEA Method Based on Modeling and Simulation by Rhapsody

Software Failure Modes and Effects Analysis (SFMEA) technology is the most common technique in reliability and safety analysis. The common software FMEA methods are summarized and for object-oriented software, combined with the Rhapsodys characteristic of modeling and simulation, we proposed the SFMEA method based on modeling and simulation by Rhapsody and gave the process of implementation, the acquisition methods of failure modes and the SFMEA example.