Essay on F/CFAT : An Approach for Combined Safety and Security Analysis

Essay on F/CFAT : An Approach for Combined Safety and Security Analysis

Length: 1413 words (4 double-spaced pages)

Rating: Powerful Essays

Open Document

Essay Preview

I. INTRODUCTION
System safety is a complex concept, which is represented by multiple attributes and which requires diverse sources of evidence to demonstrate its achievement. Safety-critical systems, which provide safety-critical services to their users, must be designed to be safe. This means that despite their complexities and despite variable environmental conditions, their operation should be demonstrably safety. A fundamental difficulty in measuring system safety arises due to the complexity of the notion – it is made up of multiple, potentially conflicting attributes, and difficult trade-offs may need to be made between these attributes. The attributes themselves are evaluated using multiple diverse sources of evidence, thus compounding the problem of measuring system safety.
Software safety has become an ever increasingly important issue in system safety due to the larger role software plays in complex cyber-physical systems. Such a system is a consisted of a number of components distributed over a predefined space. Components of a typical cyber-physical system communicate with each other and with an external world through communication gateway. The safety failures of the components of such a system result in safety hazard of the whole system. Additionally, external attackers can attack the system through sensor network and communication gateway and can manipulate software processes and data stored and exchanged in the system.
Over the last decades a good many number of safety analysis methods (i.e., FMEA, HAZOP, FTA) have been developed. Among them Fault Tree Analysis (FTA) [1] is a widely accepted method. It graphically shows how basic failures of components, in combination, cause a safety hazard at the system level....


... middle of paper ...


...and System Safety Analysis”. IASTED’04.
[4] J. Xiang, K. Ogata and K. Futatsugi. “Formal Fault Tree Analysis of State Transition Systems”. QSIC’05.
[5] K. M. Hansen, and A. P. Ravn. “From Safety Analysis to Software Requirements”. IEEE Transactions on Software Engineering 24(7). 1998.
[6] D. Coppit, K. J. Sullivan and J. B. Dugan. “Formal Semantics of Models for Computational Engineering: a Case Study on Dynamic Fault Trees”. ISSRE’00.
[7] G. Schellhorn, A. Thums and W. Reif. “Formal Fault Tree Semantics”. WCIDPT’02.
[8] W. Reif, G. Schellhorn, and A. Thums. “Safety Analysis of a Radio-Based Crossing Control System using Formal Methods”. IFAC’00.
[9] B. Kaiser. “A Fault-Tree Semantics to Model Software-Controlled Systems”. Softwaretechnik-Trends 23(3). 2003.
[10] B. Kaiser, P. Liggesmeyer and O. Maeckel. “A New Component Concept for Fault Trees”. SCS’03.

Need Writing Help?

Get feedback on grammar, clarity, concision and logic instantly.

Check your paper »

Protecting Firefighters Lives and Safety Essay

- Every year communities struggle each year around the nation with issues of life safety. In 2012, the nation’s fire departments responded to 31,854,000 responses that resulted in the deaths 0f 2,855 civilians and injuring 16,500 causing an estimated $12,427 million dollars in damage. (United States Fire Administration, 2014) These incidents put at risk 345,950 career and 783,300 volunteer firefighters that resulted in the deaths of 81 individuals (U.S. Department of Homeland Security, 2013) and nearly 70,000 reported injuries....   [tags: safety, homeland security]

Powerful Essays
1939 words (5.5 pages)

Enhancing Focus on Airplane Security and Safety Essay

- Everyday, millions of people throughout the world fly on airplanes to get to their destination. They have allowed people to travel to exotic places or just simply granted the ability for family members to see each other even if they are long distances apart. It is a convenient and effective means of transportation that is continuously growing and has a limitless future. Additionally, they are a structure with the potential to do a lot of good in this world and are a gift to all. However, like most gifts, someone is out to abuse them....   [tags: Airplane Safety]

Powerful Essays
908 words (2.6 pages)

Essay on Global Security And Public Safety

- Global security is an extraordinarily imperative idea when it comes to public safety. The purpose of global security is to protect the interests of the public. When viewing this through the lens of public and private relationships, it is effortless to see how the two walk hand in hand when it comes to trying to achieve global security. Global security is a relevant concept because the people of the United States need to be protected at all costs. Along with protecting the public, the government also needs to protect the interests of itself....   [tags: United Nations, United States, Human security]

Powerful Essays
1456 words (4.2 pages)

The Safety and Security of Students at a University Essay

- Formatting Problems The Safety and Security of Students at a University Introduction Our group designed a study to measure violent crimes that occur on University’s campus. We began this study with the benefit being able to be distributed 3 ways: the parents, students, and faculty/staff. The parents would benefit from the results of the study by knowing or gaining a better understanding of how safe the campus of University is. The students would be better equipped with the tools needed to prevent and observe certain crimes from occurring on campus....   [tags: Security]

Free Essays
1123 words (3.2 pages)

Essay on Campus Safety And Security : A Case Study At The University Of Georgia

- Accord to Brian N. Williams of The co-production of campus safety and security: a case study at the University of Georgia said: “Campus safety and security is a noteworthy issue and an area of increasing concern facing educational institutions in the United States.” Before I came to America, I saw a lot of news about the US school shootings which were so terrible, but still I think it won’t be happen on me. The shooting things are really far away from me until few days before. There had a shooting threat announcement post on Internet said ASU would be his shooting target few days ago....   [tags: Security, Computer security, Physical security]

Powerful Essays
786 words (2.2 pages)

Safety At The Department For Children And Families Essay

- Safety in the Workplace Safety is a concern that is discussed at The Department for Children and Families. During this student’s interview this student was provided with a short document discussing basic safety policy. Upon beginning practicum placement this student inquired if there was a more substantial safety policy, and this student was provided with the Safety, Security, and Emergency Operations Manual. This 67 page document gives detailed policies regarding safety in the workplace in the field....   [tags: Safety, Risk, Security]

Powerful Essays
1189 words (3.4 pages)

Trading Privacy for Safety.: Is it worth It? Essay

- Airports have become an extremely controversial since the implementation of body scanners. They have caused people to choose to side for or against the use of these scanners as a safety measure at airports. Due to the attacks of 9/11, Lockerbie, the underwear bomber and others, airport security has become a growing issue. This advancement is necessary since it is a matter of public safety, it protects against terrorist attacks and it is not that much of a hassle.Despite the argument against body scanners in airports that say they waste valuable time and it is invasive, they are necessary due to terrorist attacks and threats to people’s safety....   [tags: Security, Body Scanners, Airports, Safety]

Powerful Essays
1158 words (3.3 pages)

Essay about Singapore Hotel Security Conference

- A Hotel Security Conference 2007 was held in Singapore with the Senior Minister of State for Law and Home Affairs of Singapore addressing the public, and highlighting the need to enhance building security especially hotels. Ho (2007) has specially mentioned in this forum the usage and to incorporate CPTED considerations in future building or redevelopment plans, and as early as possible in all building design plan. He further mentioned that this approach will make security and criZXCxcsDDvcwvme prevention activity much more effective in the long term....   [tags: Security ]

Powerful Essays
1285 words (3.7 pages)

The Fda Food Safety Modernization Act Essay

- Evelyn Soto 8/12/14 Essay For decades the United States of America has stressed the importance of food safety by discovering and preventing outbreaks. Fifteen states have united with the CDC food safety programs to get ahead of persevering foodborne epidemics. The FDA Food Safety Modernization Act (FSMA) empowers the FDA to better defend public health by firming up the food safety system. Congress has shown explicit enactment dates in the legislation. Some establishments will go into effect swiftly, such as the FDA’s new ability to command companies to recall food, and others entail the FDA to concoct and distribute regulations and guidance documents....   [tags: Food, Food safety, United States, Food security]

Powerful Essays
1628 words (4.7 pages)

It Should Be Mandatory that All Security Guards Be Armed On Duty Essay

- ... A security guard standing in the corner of that bank unarmed would be pretty pointless. That unarmed guard would not be able to stop the robber from putting a bullet through the bank employees or the bank costumers, nor would the guard be able to stop him from robbing the place. On the other hand if that guard who was standing in the corner would have been armed it would be a lot more intimidating. The sight of the fire arm on the guards waist may make the criminal think twice. If at that point the criminal would over look the guard and proceed to rob the place, the guard could then put the skills he learned through his training to use....   [tags: private security, safety, violence]

Powerful Essays
979 words (2.8 pages)