Software system safety glossary

This article uses software as the context but the safety life cycle applies to other areas such as construction of buildings, for example. Hazard controls risk controls, have been applied to the associated contributory hazards. Cnssi 40092015 under malicious logic ietf rfc 4949 ver 2 see malicious code. To know with the basic definitions of software testing and quality assurance this is the best glossary compiled by erik van veenendaal. The system safety concept calls for a risk management strategy based on identification, analysis of hazards and application of remedial controls using a systemsbased approach. Refers to a software system whose failure or serious malfunction could lead to death or serious injury to people or cause severe loss or damages. Software measures and metrics to reduce security vulnerabilities. P platform platform is the underlying hardware or software for a system. The risk posed by safety critical software will vary with the system safety criticality e. Specific configuration of hardware and software components in a programmable electronic system. The glossary is put forward as guidance only and is not claimed to be exhaustive. This glossarywhich includes many updated and revised terms, along with nearly 50 new entriesderives from a variety of sources, including books, periodicals, websites and quality experts. A virus, worm, trojan horse, or other codebased entity that infects a host. Functional safety activities are carried out in parallel with normal system development, operation and maintenance tasks.

They commence with a hazard analysis of the target system in the concept phase and extend to assuring its safe decommissioning and disposal. Safety management system an sms is a coordinated, comprehensive set of processes designed to manage resources for optimal safety achievement. Safety testing this is a series of tests designed to uncover safety flaws in programs, especially in terms of unauthorised access and data protection. Software system safety engineering ssse focuses on two primary objectives. Though the safety glossary also is a source of information for users of iaea safety standards and other safety related iaea publications, such users in particular drafters of national legislation should be aware that the terms have been chosen, defined and explained for this purpose. Standard glossary of terms used in software engineering iqbba.

In recent years, the role of software has become integral to. Oct 31, 2019 the term engineered system has been substituted for the word product in definition 1a to better align with the terminology used in the sebok. Testing that involves the execution of the software of a component or system. Failsafe a characteristic of a system whereby any malfunction affecting the system safety will cause the system to revert to a state that is known to. It is intended for use in the iaeas official business. Arrhenius equation k z e ert where k is the specific reaction rate constant in reciprocal minutes for first order, z is the preexponential factor in reciprocal minutes, e is the arrhenius activation energy in jmol, r is the gas constant, 8. For system components where it is not possible to quantify the associated risks e. International standards such as iec 61508 1, en 5012689 2, mod 0056 3, dod 882d 4 and do 178b 5 provide a set of development life cycle.

In software engineering, software system safety optimizes system safety in the design, development, use, and maintenance of software systems and their integration with safetycritical hardware systems in an operational environment overview. Glossary of patient safety terms va national center for. Concept of operations a formal document that describes the users environment and process. At the core of abb ability system 800xa is a flexible integration platform that provides the means of achieving measurable productivity and profitability improvements. Software safety, system safety there is more courage and heroism in defying the human impulse, in taking the purposeful and painful steps to prepare for the unimaginable. The draft is made available for informational purposes only. Hardware, firmware, or software that is intentionally included or inserted in a system for a harmful purpose. Hazards assessment process, software safety analyses, and general guidelines for designing safety critical software. A measurement of the effectiveness of a systems safety based on the probability of tolerable incidents that can occur. The safety life cycle is the series of phases from initiation and specifications of safety requirements, covering design and development of safety features in a safetycritical system, and ending in decommissioning of that system. Appendix a glossary federal aviation administration. In order to avoid the ambiguities in different software testing terms i am enclosing a software testing glossary here.

Validation and verification are a set of terms you find when working with software safety. These malicious intentions may include gaining control of a computer system, allowing privilege escalation, or launching a denialofservice attack. This glossary is intended as a quick reference to definitions of general safety terms which. Glossary of computer system software development terminology. Acceptable risk the residual final risk remaining after application of controls, i.

Aup acceptable use policy set of rules applied to a network, website or computer system that restricts the ways the network site or system may be used. An sms is a systematic approach to managing safety, including the necessary organizational structures, accountabilities, policies, and procedures representing a management approach to controlling risk. The plan includes outcome measures to indicate that system and process deficiencies are effectively eliminated, controlled, or accepted. Functional safety iec 61508 systems safety software. In safetycritical systems it is essential that system operation is always safe i. The msds also contains treatments for exposure or ingestion as well as the type of equipment needed for safe handling. Operating system the software master control application that runs a computer or electronic device. Safety instrumented system sis safety requirements. Glossary december 30, 2000 a 1 concept or term description acceptable risk the residual final risk remaining after application of controls, i. An action plan is the result of root cause analysis. This way the automation system is delivering you crucial information on. An operating system recognizes input from the keyboard, sends output to the display screen, and keeps track of files and directories on the disk and controlling peripheral devices such as disk drives and printers. System safety is defined in the glossary, and aims to better identify and disclose. Blogs are usually updated frequently and sometimes entries are.

A piece of software, a chunk of data or a sequence of commands that take advantage of a bug, a glitch or a vulnerability in software in order to penetrate a users system with malicious intentions. Dcs its also an hmi scada, electrical control and power management system, a safety system and much more. Component general term for a part of a software system hardware or software. The communications decency act of 1996, a part of the telecommunications act of 1996, was the first attempt by the u. Software considerations in airborne systems and equipment. System safety online safety training osha training. This list allows you to sort by topicsimply choose if youre looking for safety terms or lean terms. This glossary includes the most frequently encountered terms related to explosives safety.

The iaea safety glossary defines and explains technical terms used in the iaea safety standards and other safety related iaea publications, and provides information on their usage. Ability of a system to be in a state to perform as required. Very little was mentioned about the reliability of the software product and nothing about the safety of the software product. The process of testing to determine the safety of a software product. A subsystem can be viewed as a system with more narrow predetermined boundaries than the system. Fmea glossary of terms fmea failure mode and effects analysis fmea is a method designed to. A useful glossary of definitions, terms, and acronyms is included, as well as a software safety checklist appendix a. System software safety pdf test and evaluation safety pdf facilities system safety pdf the application of system safety to the commercial launch industry pdf system safety training pdf operational risk management pdf operational safety in aviation pdf human factors engineering and safety. Software system safety is a subset of system safety and system engineering and is synonymous with the software engineering aspects of functional safety. For a full discussion of the role and importance of system requirements in systems engineering see the system requirements article. Not included are very common words, words that usually have their ordinary dictionary meaning, and words that are topics on the site. The fdas glossary of computerized system and software development terminology, defines many of the terms used on this site.

The 2018 edition of the iaea safety glossary is a new edition of the iaea safety glossary, originally issued in 2007. The difference between the expectation and the actual results. Software that attempts to block malicious programscodesoftware called viruses or malware from harming your computer. Department of transportation federal aviation administration 800 independence avenue, sw washington, dc 20591 866 tellfaa 866 8355322. Check out our useful glossary of good, bad and plain ugly words and phrases. System safety is an optimized level of risk that is constrained by cost, time, and operational effectiveness performance. International electrotechnical commission, international. A passphrase is similar to a password but is generally longer for added security. Cda prohibited knowingly sending or displaying indecent material to minors through the computer, defined as. Standard glossary of software engineering terminology. What is a building automation system bas a building automation system bas is an intelligent system of both hardware and software, connecting heating, venting and air conditioning system hvac, lighting, security, and other systems to communicate on a. Bug a software bug is an error, flaw, failure, or fault in a computer program or system that causes it to produce an incorrect or unexpected result, or to behave in unintended ways. The process of describing in detail the hazards and accidents associated with a system, and defining accident sequences 1 identify hazards through a systematic hazard analysis process encompassing detailed analysis of system hardware and software, the environment in which the system will exist, and the intended use. To terminate a procedure, such as the running of a computer program or the printing of a document while it is still in progress.

Ensure the safety of your employees, reduce your enterprise risk, drive safety culture and improve safety performance. International standards define hazard analysis as follows. Congress to protect children on the internet from pornography. Active fall protection system a means of providing fall protection that requires employees to actively wear and use fall protection equipment, and which requires training. The system safety concept helps the system designers to model, analyse, gain awareness about, understand and eliminate the hazards, and apply controls to achieve an acceptable level of safety. Joint software systems safety engineering handbook acqnotes. Complete system includes all code modules, components, and libraries kept in the production version of the data repository. The cyber security glossary for safe online experiences. Glossary of computer system software development terminology 895. This glossary is intended as a quick reference to definitions of general safety terms which are in common usage. Not included are very common words, words that usually have their ordinary dictionary meaning, and. Iaea safety glossary and it is not a publication of the iaea.

A specific document that shows important physical and chemical characteristics of a chemical or product to alert a user, transporter or other interested party to potential safety hazards that may be associated with the material. As defined by milstd882, system safety is the application of engineering and management principles, criteria, and techniques to achieve acceptable mishap risk, within the constraints of operational effectiveness and suitability, time, and cost, throughout all phases of the system life cycle. Safety management terminology skybrary aviation safety. This is different from traditional safety strategies which rely on control of conditions and causes of an accident based either on the epidemiological analysis or as a result of investigation of individual past. It provides a platform for other software applications. In the case of documents issued under the safety standards act, definitions provided by a safety manager for the specific circumstances shall prevail. Milstd882c, military standard system safety program requirements, 19jan1993. Abcs of personal fall protection the basic elements of any fall protection system are a for anchorage, b for body support and c for connectors. The application of system safety to the commercial launch industry pdf system safety training pdf operational risk management pdf operational safety in aviation pdf human factors engineering and safety. The action plan addresses system and process deficiencies. It is a measure of its ability to perform safely and, in the event of failure, to fail.

The hazard analysis process commences with a preliminary hazard analysis pha in the early stages of a project and continues throughout the system products life cycle. Software system safety is a subset of system safety and system engineering and is synonymous with the software engineering. Safety program started, development of a software safety program plan, the software hazards assessment process, software safety analyses, and general guidelines for designing safety critical software. The capability of the software product to achieve acceptable levels of risk of harm to people. The functional safety management discipline ensures that software and electronic systems tasked with protecting life and property reliably perform their missions. Every quality professional needs a handy reference of quality terms, acronyms and key people in the history of quality.

Iso 26262, titled road vehicles functional safety, is an international standard for functional safety of electrical andor electronic systems in production automobiles defined by the international organization for standardization iso in 2011. Safety testing this is a series of tests designed to uncover safety flaws in programs, especially in terms of. P passphrase a secret sequence of words or other text used to authenticate a persons or systems identity. Besides stabilizing the system voltage, the shunt reactor increases the active or the useful power transmitted in the system. Some bugs have only a subtle effect on the programs functionality, and may thus lie undetected for a long time.

This document is intended to serve as a glossary of terminology applicable to software development and computerized systems in fda regulated industries. The definitions include those pertaining to functional safety in addition to general occupational health and safety matters. Hcrqs expertise in software safety dates back to 1986 the therac25. Also for each definition there is a reference of ieee or iso mentioned in brackets. Safety engineering cs 410510 software engineering class notes. The rbps management system is composed of four accident prevention pillars.

Audit an assessment of a safety and health programs documentation and or a. Ineffective decision making in safety matters is regarded as the first step in the sequence of hazardous flow of events in the swiss cheese model of. The safety integration level sil rating of a system indicates the level of risk associated with it. Jan 16, 2019 what is a building automation system bas a building automation system bas is an intelligent system of both hardware and software, connecting heating, venting and air conditioning system hvac, lighting, security, and other systems to communicate on a single platform. A form of malicious code that displays unsolicited advertising on your computer. As part of the total safety and software development program, software cannot be allowed to function independently of the total effort. Introduction in the past, industry in general considered increased productivity as the most important aspect of software engineering. Internet terms hardware terms software terms technical terms file formats bits and bytes tech acronyms. A system safety program plan sspp issued by the relevant senior design. The internet and its associated services has spawned a wealth new terminology and redefined the many old words. The 2016 revision may be referenced and quoted as a web site only.

Attack signatures include certain paths used by cyber criminals in their malicious compromise attempts. This is a mature, comprehensive and very practical course. Glossary of workplace safety terms i q this glossary contains terms you may run across on this site or in some other safety context. The terms in this glossary provide definitions of terms commonly used within technical safety bc. Hazard analysis is the process of recognizing hazards that may arise from a system or its environment, documenting their unwanted consequences and analyzing their potential causes.

This 2016 revision of the iaea safety glossary 2007 edition is not a new edition of the iaea safety glossary and it is not a publication of the iaea. Glossary of fall safety terminology fall protection glossary. The most trusted ehs management software solution by top performing organizations for over 20 years. Software engineering techniques are described for developing safe software, and case studies are presented regarding catastrophic sit uations that resulted from software faults that could have been avoided.