Twopassverification , also called double data entry , is a data entry quality control method that was originally employed when data records were entered onto sequential 80 column Hollerith card s with a keypunch . In the first pass through a set of records, the data keystrokes were entered onto each card as the data entry operator typed them. On the second pass through the batch, an operator at a separate machine, called a verifier, entered the same data. The verifier compared the second operator s keystrokes with the contents of the original card. If there were no differences, a verification notch was punched on the right edge of the card. http www.museumwaalsdorp.nl computer en punchcards.html The later IBM 129 keypunch also could operate as a verifier. In that mode, it read a completed card record and loaded the 80 keystrokes into a buffer. A data entry operator reentered the record and the keypunch compared the new keystrokes with those loaded into the buffer. If a discrepancy occurred the operator was given a chance to reenter that keystroke and ultimately overwrite the entry in the buffer. If all keystrokes matched the original card, it was passed through and received a verification punch. If corrections were required then the operator was prompted to discard the original card and insert a fresh card on which corrected keystrokes were typed. The corrected record card was passed through and received a corrected verification punch. http ed thelen.org comp hist IBM ProdAnn 129.pdf Modern use While this method of quality control clearly is not proof against systematic errors or operator misread entries from a source document, it is very useful in catching and correcting .... DEFAULTSORT TwoPassVerification Category Data quality Category History of computing ... study suggests that single pass data entry with range checks and skip rules approaches the reliability of twopass data entry see Controlled Clinical Trials from sometime in the 1990s Control Clin Trials ... more details
Infobox mountain pass name Two Ocean Pass photo photo caption elevation ft 8130 elevation ref ref name GNIS cite gnis id 1603845 name Two Ocean Pass accessdate 2011 02 19 ref traversed North Two Ocean Creek location Teton County, Wyoming , USA range Absaroka Range coordinates coord 44 02 28 N 110 10 03 W type pass topo USGS Two Ocean PassTwo Ocean Pass is a mountain pass on North America s Continental Divide , in the Teton Wilderness , which is part of Wyoming s Bridger Teton National Forest . The pass is notable for Parting of the Waters , where one stream, North Two Ocean Creek, splits into two distributary distributaries , Pacific Creek Teton County, Wyoming Pacific Creek and Atlantic Creek, which ultimately flow into their respective ocean s. Atlantic Creek water eventually flows into the Yellowstone River and empties into the Atlantic via the Missouri River and Mississippi River . Pacific Creek water eventually flows into the Snake River and empties into the Pacific via the Columbia River . References reflist External links http www.nature.nps.gov nnl site.cfm?Site TWOC WY Two Ocean Pass National Natural Landmark , National Park Service website. http usends.com Explore Parting index.html Parting of the Waters a creek that flows to two oceans Gnis 1603845 http travel.yahoo.com p interests 29499170 ylc X3oDMTIwYmk1dmxwBF9TAzI3MTYxNDkEX3MDMjcxOTQ4MQRzZWMDZnAtdG9kYXltb2QEc2xrA25hdHVyYWx3b25kZXJzLTgtMjUtMDk America s Little Known Natural Wonders Spectacular destinations you may not know about , By Christopher Vourlias, Forbes Traveler via Yahoo Traveler, 9 1 09. Category Mountain passes of Wyoming Category National Natural Landmarks in Wyoming Category Great Divide of North America Category Protected areas of Teton County, Wyoming Category Bridger Teton National Forest Wyoming geo stub ... more details
selfref For Wikipedia s verification policy see Wikipedia Verifiability Wiktionarypar verification Verify or verification may refer to Verification and validation , in engineering or quality management systems, it is the act of reviewing, inspecting or testing, in order to establish and document that a product, service or system meets regulatory or technical standards. Verification spaceflight , in the space systems engineering area, covers the processes of qualification and acceptance Verification theory , philosophical theory relating the meaning of a statement to how it is verified Third party verification , use of an independent organization to verify the identity of a customer Authentication Computing Verification and validation software In applications CAPTCHA , device to verify that a user of a web site is human to prevent automated abuse File verification , checking the formal correctness or integrity of a file Speech verification , checking of the correct speaking of given sentences Verify command , List of DOS commands verify DOS command In software development Formal verification , mathematical proof of the correctness of algorithms Intelligent verification , automatically adapts the testbench to changes in RTL Runtime verification , during execution Software verification , An overview of techniques for verifying software In circuit development Functional verification of design of digital hardware Analog verification , applies to analog or mixed signal hardware Physical verification , design of a circuit In systems engineering Testing to confirm that the system, subsystem or component meets documented requirements or specifications levied on the design. disambig fr V rification he id Verifikasi disambiguasi nl Verificatie uk ... more details
Infobox Album See Wikipedia WikiProject Albums Name Two for the Road Type Studio album Longtype Artist Herb Ellis , Joe Pass Cover Two for the Road Ellis Pass.jpg Released 1974 Recorded January 30, February 13 & 20, 1974 in Los Angeles, CA Genre Jazz , Bebop Length 44 08 small Reissue small Label Pablo Records Pablo Producer Herb Ellis , Joe Pass Chronology Joe Pass Last album Seven, Come Eleven br 1973 This album Two for the Road br 1974 Next album The Good Life Oscar Peterson album The Good Life br 1974 Two for the Road is an album by jazz guitarists Herb Ellis and Joe Pass , released in 1974. It was the last recording issued by the two guitarists together. Reception Album ratings rev1 Allmusic rev1Score Rating 4.5 5 ref name AM cite web first Scott last Yanow title Two for the Road Review url Allmusic class album id r138328 pure url yes publisher Allmusic accessdate November 5, 2011 ref In his Allmusic review, critic Scott Yanow wrote Pass was just beginning to gain recognition for his remarkable unaccompanied solos, but Ellis had not recorded in such a sparse setting before. They complement each other quite well... ref name AM Track listing Love for Sale song Love for Sale Cole Porter 4 50 Manh de Carnaval Carnival Manha de Carnaval Luiz Bonf , Antonio Maria 3 29 Am I Blue? Harry Akst , Grant Clarke 3 08 Seven Come Eleven Charlie Christian , Benny Goodman 4 33 Guitar Blues Herb Ellis , Joe Pass 2 49 Oh, Lady be Good George Gershwin , Ira Gershwin 3 58 Cherokee Ray Noble song Cherokee Ray Noble musician Ray Noble 2 49 Cherokee version 2 4 06 Seulb Ellis, Pass 3 24 Gee, Baby Ain t I Good to You Andy Razaf , Don Redman 2 26 Try a Little Tenderness Irving King James Campbell, Reginald Connelly , Harry M. Woods 2 17 I ve Found a New Baby Jack Palmer, Spencer Williams 4 00 Angel Eyes 1953 song Angel Eyes Matt Dennis , Earl Brent 2 52 Personnel Herb Ellis guitar Joe Pass guitar References Reflist Joe Pass Category 1974 albums Category Herb Ellis albums Category Joe Pass ... more details
No footnotes date January 2012 Analog verification is a methodology for performing functional verification on analog, mixed signal and RF integrated circuits and System on a chip systems on chip . Discussion of analog verification began in 2005 when it started to become recognized that the analog portion of large mixed signal chips had become so complex that a significant and ever increasing number of these chips were being designed with functional errors in the analog portion that prevented them from operating correctly. Technical details Analog verification is built on the idea that transistor level simulation will always be too slow to provide adequate functional verification. Instead, it is necessary to build simple and efficient models of the blocks that make up the analog portion of the design and use those to verify the design. Those models are typically written in Verilog or Verilog AMS , but could also be written in VHDL or VHDL AMS . However, simply using a simple functional model is not sufficient. It is also necessary to build a comprehensive self checking testbench, that thoroughly exercises the design and compare its response against a previously written specification for the design. Furthermore, this testbench should be applied in turn to both the model and the design. In this case, the design is represented with a transistor level schematic. If both the model and the design pass all tests, and if the testbench is comprehensive, then this confirms that the model is consistent with the design and that the design is consistent with the specification. Applying a comprehensive testbench to an entire analog functional unit such as an audio codec , power management unit, serdes , or RF transceiver, represented at the transistor level is impractical. So instead, the verification ... mixed level simulation, where the testbench for the functional unit is applied with one or two blocks ... and Ken Kundert. http www.designers guide.com docs proc2006.pdf Verification of Complex Analog and RF ... more details
Portal Software Testing Software verification is a broader and more complex discipline of software engineering whose goal is to assure that software fully satisfies all the expected requirements. There are two fundamental approaches to verification Dynamic verification , also known as Test or Experimentation This is good for finding bugs Static verification , also known as Static code analysis Analysis This is useful for proving correctness of a program although it may result in false positives Dynamic verification Test, experimentation Dynamic verification is performed during the execution of software, and dynamically checks its behaviour it is commonly known as the Software testing Test phase. Verification is a Review Process. Depending on the scope of tests, we can categorize them in three families Test in the small a test that checks a single function or class Unit test Test in the large ... criteria for a software Functional test Non functional test performance, stress test Software verification is often confused with software validation. The difference between verification and validation verification and validation Software verification asks the question, Are we building the product .... The aim of software verification is to find the errors introduced by an activity, i.e. check if the product of the activity is as correct as it was at the beginning of the activity. Static verification Analysis Static verification is the process of checking that software meets requirements by doing a physical inspection of it. For example Code conventions verification Bad practices anti pattern detection Software metric s calculation Formal verificationVerification by Analysis The analysis verification method applies to verification by investigation, mathematical calculations, logical evaluation ... expected values to establish conformance with requirements. See also Verification and validation software ... Alan L. Breitler A Verification Procedure for Software Derived from Artificial Neural Networks , Journal ... more details
Transaction verification is the generic term to describe the Internet security Internet based security method of verifying that the actual content of a transaction has not been altered by the fraudulent techniques known as Man in the Middle MitM and Man in the Browser Man in the Browser MitB . This form of transaction protection is alternatively known as Transaction Integrity Verification TIV . Transaction Verification must utilise either Out of band technology the use of two separate channels or an independent signing device, e.g. a programmable card reader, capable of having transactional information re keyed into it in order to create a code cryptographically linked to the underlying transaction detail. Transaction Verification should not be confused with Transaction authentication , which is simply a method of authenticating the identity of a user at the transaction level transaction authentication does not include the verification of the integrity of the transaction content. One effective way to perform Transaction Verification in a mass usage environment is to replay the transaction details to the user by placing a real time, automated call to the user before the transaction is committed, or to send these details in SMS with a confirmation code. Category Computer network security computer security stub compu network stub ... more details
Runtime verification is a computing system analysis and execution approach based on extracting information .... Other properties can be more conveniently captured as formal specifications. Runtime verification ... an executing system is considered runtime verification, including verifying against test oracles and reference ... from them and infused within the system by means of instrumentation. Runtime verification can be used for many purposes, such as security or safety policy monitoring, debugging, testing, verification ... verification avoids the complexity of traditional formal verification techniques, such as model checking ... of less coverage. Moreover, through its reflective capabilities runtime verification can .... History and Context The terminology runtime verification was formally introduced as the name of a 2001 workshop aimed at addressing problems at the boundary between formal verification and testing ... timers in hardware , whose precise roots are hard to identify. Currently, runtime verification ... applied either to different areas or by scholars from different communities. Runtime verification is intimately ... area of runtime verification, one can distinguish several categories, such as specification less ... variations, by several runtime verification groups by the time of this writing April 2011 . To make ... runtime verification system, though support for parameters is obviously needed. In the following ... that defines a possible monitor for checking and enforcing this property with runtime verification ... for each possible Iterator in a test program, although runtime verification systems need not implement ... 6 docs api java util Vector.html Vector class in Java has two means for iterating over its elements ... verification systems need not implement their parametric monitors this way, one may think of the parametric ... time, such as tt v.update tt , so the runtime verification system must again conceptually dispatch ... while e.hasMoreElements s e.nextElement System.out.println s code SafeLock The previous two examples ... more details
Verification in the field of space systems space systems engineering covers twoVerification and validation verification processes Qualification and Acceptance Overview In the field of spaceflight verification standards are developed NASA and the European Cooperation for Space Standardization ECSS , and to specify requirements for the verification of a space system product, such as ref http www.everyspec.com ESA ECSS E 10 02A 14991 Space Engineering Verification , ECSS E 10 02A, 17 November 1998, p.11. ref the fundamental concepts of the verification process, the criteria for defining the verification strategy and the rules for the implementation of the verification programme. Verification spaceflight Verification is one main reason that costs for space systems are high. All data are to be documented and to stay accessible for potential, later failure analyses. In previous times that approach was executed down to piece parts level resistors, switches etc. whereas nowadays it is tried to reduce cost by usage of CAM Commercial, Avionics, Military equipment for non safety relevant units. Qualification and Acceptance Qualification is the formal proof that the design meets all requirements of the specification and the parameter s agreed in the Interface Control Document s ICD including tolerances due to manufacturing imperfections, wear out within specified life time, faults etc. The end of the qualification process is the approval signature of the customer on the Certificate of Qualification COQ agreeing that all his requirements are met. Acceptance is the formal proof that the product identified by its serial number meets all requirements of the specification and is free of workmanship ... by the product to be delivered. Qualification verification methods are Review of design using configuration ... system configuration until considered as qualified. Acceptance verification methods are Test Inspection ... Further reading European Cooperation for Space Standardization ECSS E ST 10 02 Verification European ... more details
Unreferenced date October 2008 File verification is the process of using an algorithm for verifying the integrity or authentication authenticity of a computer file . This can be done by comparing two files bit by bit, but requires two copies of the same file, and may miss systematic corruptions which might occur to both files. A more popular approach is to also store checksum s hashes of files for later comparison. Integrity verification File integrity can be compromised, usually referred to as the file becoming Data corruption corrupted . A file can become corrupted by a variety of ways faulty storage media , errors in transmission, write errors during copying or moving, software bug s, and so on. hash function Hash based verification ensures that a file has not been corrupted by comparing the file s hash value to a previously calculated value. If these values match, the file is presumed to be unmodified. Due to the nature of hash functions, hash collision s may result in false positive s, but the likelihood of collisions is often negligible with random corruption. Authenticity verification It is often desirable to verify that a file hasn t been modified in transmission or storage by untrusted parties, for example, to include malicious code such as virus es or Backdoor computing backdoor s. To verify the authenticity, a classical hash function is not enough as they are not designed to be collision resistance collision resistant it is computationally trivial for an attacker to cause deliberate hash collisions, meaning that a malicious change in the file is not detected with by a hash comparison. In cryptography, this attack is called the collision attack . For this purpose ... formats Simple file verification md5sum sha1sum Products Bitser software Bitser http osiris.shmoo.com Osiris OSSEC CimTrak Verisys See also Checksum Comparison of file verification software Data deduplication Category Files Verification compu storage stub ... more details
Unreferenced date December 2009 Context date October 2009 Verification of Employment VOE is a process used by bank s and mortgage loan mortgage lenders in the United States to review the employment history of a borrower , to determine the borrower s job stability and cross reference income history with that stated on the Uniform Residential Loan Application Form 1003 . Lenders require complete VOE declaring all positions held for the last two years of employment history. Most mortgages are preceded by both written and verbal VOEs. Once a lender receives the initial loan application, a Written Verification of Employment Form 1005 is sent to all current and previous employers within the last two years listed on the application. This form is filled out by an authorized representative of the employer and includes dates of employment, positions held and a breakdown of Remuneration compensation received. This information is compared to both the loan application and the income documentation, such as W2 s and Payroll Paycheck paycheck pay stub stubs , to ensure the information is correct. Once a mortgage has been approved and the borrowers have signed their mortgage documents, a Verbal Verification of Employment is conducted with all current employers prior to funding the loan. This is done to ensure that the borrower has not stopped working since the application was submitted, which would influence the terms on which the loan was approved. VOE guidelines are different for Self employment self employed borrowers, as a VOE should not be completed by the loan applicant. Self employed borrowers are typically asked to provide either a current business license or, for borrowers who do not have a traditional business model, a letter from their Certified Public Accountant indicating that they have firsthand knowledge of their previous and continued employment as their tax preparer. VOE ... DEFAULTSORT Verification Of Employment Category Mortgage industry of the United States ... more details
Refimprove date September 2009 Physical verification is a process whereby an Integrated Circuit Layout IC layout design is checked via EDA software tools to see if it meets certain criteria. Verification involves DRC Design rule check , LVS Layout versus schematic , ERC Electrical Rule Check , XOR Exclusive OR , and Antenna Checks. XOR Check This check is typically run after a metal spin, where the original and modified database are compared. This is done to confirm that the desired modifications have been made and no undesired modifications have been made by accident. This step involves comparing the two layout databases GDS by XOR operation of the layout geometries. This check results a database which has all the mismatching geometries in both the layouts. Antenna Check The antenna basically is a metal interconnect, i.e., a conductor like polysilicon or metal, that is not electrically connected to silicon or grounded, during the processing steps of the wafer. During the manufacturing process charge accumulation can occur on the antenna during certain fabrication steps like Plasma etching, which uses highly ionized matter to etch. If the connection to silicon does not exist, charges may build up on the interconnect to the point at which rapid discharge does take place and permanent physical damage results to thin transistor gate oxide. This rapid and destructive phenomenon is known as the antenna effect . Antenna errors can be cured by adding a small antenna diode to safely discharge the node or spillting the antenna by routing up to another metal layer and then down again. The Antenna ratio is defined as the ratio between the physical area of the conductors making up the antenna to the total gate oxide area to which the antenna is electrically connected. ERC Electrical rule check ERC Electrical rule check involves checking a design for all electrical connections that are considered ... Physical Verification Category Electronic circuit verification ... more details
Intelligent Verification , also referred to as intelligent testbench automation , is a form of functional verification used to verify that an electronic hardware design conforms to specification before device fabrication. Intelligent verification uses information derived from the design and existing test description to automatically update the test description to target design functionality not verified, or covered by the existing tests. Intelligent verification software has this key property given the same test environment, the software will automatically change the tests to improve functional design coverage in response to changes in the design. Other properties of intelligent verification may include Providing direction as to why certain coverage points were not detected. Automatically tracking paths through design structure to coverage points, to create new tests. Ensuring that various aspects of the design are only verified once in the same test sets. Intelligent Verification uses existing logic simulation testbenches, and automatically targets and maximizes the following types of design ... random simulation methodologies emerged using hardware verification languages such as Vera ... Design Insight for Intelligent Verification Methodologies , Embedded , June 2008. ref and e verification language e , as well as SystemVerilog in 2002 , to further improve verification quality and time. Intelligent verification approaches supplement constrained random simulation methodologies .... ref Intelligent verification is intended to automatically utilize design knowledge during simulation ... verification area, and commercial tools that leverage this technique are just beginning to emerge. See also Formal verification Vendors offering Intelligent Verification Mentor Graphics Synopsys acquisition ... verification EETimes , May 2008. http www.scdsource.com article.php?id 198 Lifting the Fog on Intelligent Verification SCDSource , May 2008. Category Electronic circuit verification ... more details
Unreferenced date December 2009 Orphan date February 2009 In a public switched telephone network , busy verification is a network provided service feature that permits an attendant to verify the busy or idle state of station lines and to break into the conversation. A 440 Hz tone is applied to the telephone line line for 2 seconds, followed by a 0.5 second burst every 10 seconds, to alert both parties that the attendant is connected to the telecommunication circuit circuit . DEFAULTSORT Busy Verification Category Calling features ... more details
Data Verification is a process wherein the data is checked for accuracy and inconsistencies after data migration is done. ref http www.datacap.com products features verify ref It helps to determine whether data was accurately translated when data is transported from one source to another, is complete, and supports processes in the new system. During verification, there may be a need for a parallel run of both systems to identify areas of disparity and forestall erroneous data loss. A type of Data Verification is Double Entry and Proofreading data Proofreading data involves someone checking the data entered against the original document. This is also time consuming and costly. References reflist 2 External links http www.pcguide.com care bu howVerification c.html PC Guide article Category Data management Category Data quality ... more details
multiple issues one source June 2010 refimprove June 2010 wikify January 2011 Measurement and Verification M&V is the term given to the process for quantifying savings delivered by an Energy conservation measure Energy Conservation Measure ECM , as well as the sub sector of the energy industry involved with this practice. Measurement and Verification demonstrates how much energy the ECM has avoided using, rather than the total cost saved. The latter can be affected by many factors, such as energy prices. The Measurement and Verification process enables the energy savings delivered by the ECM to be isolated and fairly evaluated. Various protocols for good practice in Measurement and Verification exist, including the IPMVP International Performance Measurement and Verification Protocol IPMVP ref cite web url http www.evo world.org title Efficiency Valuation Organization ref , which defines common terminology and the key steps in implementing a robust M&V process. A key part of the M&V process is the development of an M&V Plan , which defines how the savings analysis will be conducted before the ECM is implemented. This provides a degree of objectivity that is absent if the savings are simply evaluated after implementation. References reflist Category Energy conservation 2. http www1.eere.energy.gov femp pdfs mv guidelines.pdf FEMP M&V Guidelines 3.0 energy stub ... more details
verification is the act of Mathematical proof proving or disproving the correctness computer science ... 30em quoted true bgcolor FFFFF0 salign center Complete formal verification is the only known way ... klein sosp09.pdf title seL4 Formal Verification of an OS Kernel paper submitted to 22nd ACM Symposium ... Usage Formal verification can be helpful in proving the correctness of systems such as cryptographic ..., and software expressed as source code. The verification of these systems is done by providing a formal ... needed date September 2009 Approaches to formal verification One approach and formation is model ... checking. Formal verification for software Logical inference for the formal verification of software ... by construction correctness by construction . Verification and validation main Verification and validation Verification and validation Verification is one aspect of testing a product s fitness for purpose. Validation is the complementary aspect. Often one refers to the overall checking process as Verification ... specified to the user s actual needs? Verification Have we made what we were trying to make? , i.e., does the product conform to the specifications? The verification process consists of static ... of formal verification techniques in the hardware industry. ref cite journal doi 10.1109 LICS.2003.1210044 title Formal verification at Intel year 2003 last1 Harrison first1 J. pages 45 54 ref ref http portal.acm.org citation.cfm?id 800667 Formal verification of a real time hardware design . Portal.acm.org 1983 06 27 . Retrieved on 2011 04 30. ref At present, formal verification is used by most ... design are amenable to automated proof methods, making formal verification easier to introduce and more productive. ref http www.cl.cam.ac.uk jrh13 slides types 04sep99 slides1.pdf Formal Verification ... in the Formal Verification of PikeOS ref ref http www.embedded.com columns breakpoint 220900551 ... in computer science Formal verification Selected formal verification bibliography Static code analysis ... more details
unbalanced date December 2010 Callback verification , also known as callout verification or Sender Address Verification , is a technique used by SMTP software in order to validate e mail address es. The most common target of verification is the sender address from the message envelope the address specified during the SMTP dialogue as MAIL FROM . It is mostly used as an anti spam measure. Image Sav.png thumb right 350px The three hosts involved in an SMTP callout verification. If the address is not forged, the sender and the MX server may coincide. Purpose Since a large percentage of e mail spam has forged sender mfrom addresses, some spam can be detected by checking whether forging resulted in an invalid ... the use ref name postfix http www.postfix.org ADDRESS VERIFICATION README.html Postfix Address Verification ... Callout verification ref of this technique and mention many limitations to SMTP callbacks. In particular ... sender address verification John Levine Sender Address Verification Still a Bad Idea ref Callback verification can still work if rejecting all bounces happens at the DATA stage instead of the earlier ... is valid and thus prevent callback verification from working. ref name postfix ref name JLevine ... address if the test succeeds, further verification is useless . Servers that implement catch ... techniques, including greet delays causing a connection delay and greylisting causing a verification ... or just misconfiguration. The positive aspect is that the verification process will usually cause an outright ... . ref name JLevine Callback verification has no effect if spammers spoof real email addresses ref name JLevine ref http taint.org 2007 03 16 134743a.html Justin Mason Sender Address Verification considered ... systems violating or stretching the limits of RFCs verification problems are only reflecting these problems ... of the above problems are reduced by Cache computing caching of verification results. In particular ... callout spamlinks Sender Callout Verification DEFAULTSORT Callback Verification Category Spam filtering ... more details
Speech verification uses speech recognition to verify the correctness of the pronounced speech. Speech verification doesn t try to decode unknown speech from a huge search space, but instead, knowing the expected speech to be pronounced, it attempts to verify the correctness of the utterance s pronunciation, cadence, pitch, and stress. Pronunciation assessment is the main application of this technology which is sometimes called computer aided pronunciation teaching. External links http llt.msu.edu vol2num2 article3 index.html Using automatic speech processing for foreign language pronunciation tutoring http llt.msu.edu vol2num1 article3 index.html Speech technology in computer aided language learning compu AI stub Category Speech recognition ... more details
Functional verification , in electronic design automation , is the task of verifying that the digital circuit logic design conforms to specification. In everyday terms, functional verification attempts to answer the question Does this proposed design do what is intended? This is a complex task, and takes the majority of time and effort in most large electronic system design projects. Functional verification is very difficult because of the sheer volume of possible testcases that exist in even a simple design. Frequently there are more than 10 80 possible tests to comprehensively verify a design a number that is impossible to achieve in a lifetime. This effort is equivalent to program verification , and is NP hard or even worse and no solution has been found that works well in all cases. However, it can be attacked by many methods. None of them are perfect, but each can be helpful in certain circumstances Logic simulation simulates the logic before it is built. Simulation acceleration applies special purpose hardware to the logic simulation problem. Emulation builds a version of system using programmable logic. This is expensive, and still much slower than the real hardware, but orders .... Formal verification attempts to prove mathematically that certain requirements also expressed ... verification uses automation to adapt the testbench to changes in the register transfer level code ... problems. Simulation based verification also called dynamic verification is widely used to simulate ... inputs for the design under verification. Generators create inputs at a high level of abstraction ...? , and branch coverage has each direction of every branch been exercised? . Functional Verification ... verification http www.brekersystems.com Breker Verification Systems, Inc. Trek a model based test generation ... Software Synopsys See also Analog Verification Cleanroom Software Engineering External links You ... An IDE for e and SystemVerilog http www.dvteclipse.com Category Electronic circuit verification ... more details
Merge to Verificationism discuss Talk Verificationism Merger proposal date September 2011 Unreferenced stub auto yes date December 2009 The verification theory of meaning is a Philosophy philosophical theory proposed by the Logical Positivism logical positivists of the Vienna Circle . A simplified form of the theory states that a proposition s meaning is determined by the method through which it is Empiricism empirically verified. In other words, if something cannot be empirically verified, it is meaningless. For example, the statement It is raining is meaningless unless there is a way whereby one could, in principle, verify whether or not it is in fact raining. The theory has radical consequences for traditional philosophy as it, if correct, would render much of past philosophical work meaningless, for example metaphysics and ethics. It is important to note that the theory is meant to be applied only to synthetic claims i.e. claims about the world , rather than analytical ones. The statement of the theory itself was taken by Ayer to be an analytic claim. See also Fields of study and principles Epistemology The philosophical study of knowledge and belief Falsifiability The possibility that an assertion may be disproved Logical Positivism A philosophical school espousing verificationism Philosophy of science Verification principle That meaningful statements should be analytic, verifiable or falsifiable Schools and individuals A.J. Ayer 1910 1986 A British logical positivist Moritz Schlick 1882 1936 The German founding father of logical positivism Vienna Circle The group around Moritz Schlick at Vienna University from 1922 Philosophy of language Philosophy topics DEFAULTSORT Verification Theory Category Theories of language Category Epistemological theories Category Logical positivism Category Vienna Circle epistemology stub da Verifikationisme fr Th orie v rificationniste de la signification nl Verificatiebeginsel fi Verifikationistinen merkitysteoria ... more details
wiktionarypar pass TOCright Pass , PASS , or The Pass may refer to Admission Ticket admission Ticket for admission Backstage pass , allows admission to backstage areas of a performance venue Press pass , grants special privilege or access to journalists Season Pass , allowing seasonal admission to an amusement park Travel Pass United States military , permission for military personnel to be away from their unit Hall pass , a token allowing a pupil to leave the classroom during school Transit pass , permitting travel, including Boarding pass , allows a passenger to board an aircraft Continent pass , a pass allowing air travel within a continent E ZPass , an electronic toll collection system in the United States Eurail pass, issued by Eurail Group for trains and buses in Europe I Pass , an electronic toll collection system used in Illinois Indrail Pass , a railway pass for Indian railways Pass laws , apartheid laws in South Africa which limited movement for some people U Pass disambiguation Other general uses Pass, an overtaking manoeuvre Pass legislature , the action of approving a proposed law Pass sleight of hand , a sleight of hand move Fish pass or fish ladder , a construction allowing migrating fish to pass an obstruction on a stream Places Mountain pass , a lower place in a mountain range allowing easier passage Pass, the name of a number of straits see List of straits Pass, Poland People Frank Alexander de Pass , English soldier, first Jewish recipient of the Victoria Cross in World War I Joe Pass 1929&ndash 1994 , jazz musician John Pass born 1947 , British born Canadian poet Nelson Pass born 1951 , designer of audio amplifiers Patrick Pass born 1977 , American football player Sports and games Pass, a type of call in contract bridge Pass ice hockey , the movement of the puck from one player to another Forward pass , in American and Canadian football Lateral pass or onside pass, in American and Canadian football respectively Pass, in rugby football see Rugby passes ... more details
Infobox Single See Wikipedia WikiProject Songs Name Pass This On Cover Artist The Knife from Album Deep Cuts The Knife album Deep Cuts B side Released 2003 Format CD Recorded Genre Electronica , electropop Length 3 48 Label Rabid Records Writer Karin Dreijer Andersson , Olof Dreijer Producer Certification Chart position Last single You Take My Breath Away The Knife song You Take My Breath Away br 2003 This single Pass This On br 2003 Next single Handy Man br 2003 Misc Extra track listing Album Deep Cuts The Knife album Deep Cuts Type single prev track Girl s Night Out prev no 2 this track Pass This On track no 3 next track One for You next no 4 Pass This On is a single from the Swedish electronic duo The Knife , released in 2003. It is the third track on The Knife s second studio album, Deep Cuts The Knife album Deep Cuts . Music video Synopsis The music video for the song was directed by Johan Renck in which female impersonator Rickard Engfors is Lip synching in music lip synching a playback of the song in a room. ref citeweb url http www.contactmusic.com new home.nsf webpages theknifex20x06x05 title The Knife Pass this on Single Review publisher Contactmusic.com accessdate 2009 05 13 ref Both members of The Knife, Karin Dreijer Andersson and Olof Dreijer , are visible in the video Dreijer is seen dancing next to Engfors and flirting with him, and Andersson is seen sitting at a table looking at them at the end of the video. Reception Slant Magazine placed the music video for Pass ... Knife Pass This On release 594630 Knife, The Pass This On Swedish Single Discogs . Retrieved 2010 06 19. ref Pass This On Dahlback & Dahlback Remix 5 36 Pass This On M.A.N.D.Y. Remix 6 58 Pass This On M.A.N.D.Y. Instrumental 6 55 UK CD single ref http www.discogs.com Knife Pass This On release 485745 Knife, The Pass This On UK Single Discogs . Retrieved 2010 06 19. ref Pass This On Original 3 49 Pass This On Dahlb ck And Dahlb ck Mix 5 32 Pass This On M.A.N.D.Y. Knifer Mix 6 54 Charts class wikitable ... more details
otheruses PASS disambiguation inline date July 2010 PASS the Proof of Age Standards Scheme is a government backed scheme in the United Kingdom UK that gives young people a valid and accepted form of proof of age identification. The scheme is supported by the Home Office, the Trading Standards Institute TSI and the Association of Chief Police Officers ACPO . Set up in January 2003, it acts as an umbrella system it does not itself issue identification cards, but various proof of age card schemes operate under the PASS umbrella, and issue cards bearing a PASS Holography hologram . The main benefit for retailers is the fact they know that if a young person presents them with a card with a PASS Holography hologram on it, they know it is a reliable and accurate proof of age. This is particularly useful for those that sell products which have an age restriction on them, such as cigarette s and Alcoholic beverage alcohol . Many local councils offer proof of age cards with the PASS hologram to young people. There are also a few national schemes as of 2010, these are ValidateUK , CitizenCard , Young Scot and ProofGB . Discontinued schemes include the Portman Group s card and the Connexions Card . UreLife removed pending info on current status see talk However, some issues occur with this system, as many places requiring proof of age will not accept a small number of cards, and there is no governmental pressure on retailers of age restricted products to do so. dubious date March 2010 Most retailers should accept proof of age cards bearing the PASS hologram. Where a refusal does occur, the issuers of the PASS accredited cards like to be informed in order to investigate and educate the retailer on the merits of the scheme. External links http www.pass scheme.org.uk PASS official website http www.proofgb.com Proof GB http www.validateuk.co.uk VALIDATEUK http www.citizencard.com CitizenCard http www.youngscot.org YoungScot http www.brc.org.uk details.asp?id 106&kCat 7&kData 1 News ... more details
about the Bryn Haworth album Pass It On album the advertising campaign The Foundation for a Better Life Infobox single See Wikipedia WikiProject Songs Name Pass It On Commented out because image was deleted Cover Pass it on cd large.jpg Artist The Coral from Album Magic and Medicine Released start date 2003 07 14 Format CD single CD , DVD , Single music Vinyl Recorded Genre Length 8 32 small CD small br 8 51 small DVD small br 9 07 small 7 small Label Deltasonic Producer Ian Broudie & The Coral Last single Don t Think You re the First br 2003 This single Pass It On br 2003 Next single Secret Kiss br 2003 Misc Extra album cover Upper caption DVD Single Type Single Commented out because image was deleted Cover Passit on dvd.gif Lower caption Pass It On is a song by The Coral , which was taken as the second single taken from their 2003 album, Magic and Medicine . Pass It On is The Coral s highest charting single to date, reaching number five in the UK Singles Chart. The songs were engineered by Jon Gray. Pass It On was not only released on CD and vinyl but also on DVD which contains 2 b sides and a 3 minute documentary about the band. ref name Zion Egg http www.zionegg.com Zion Egg ref The song is similar in structure to The Beatles song You Like Me Too Much . It appeared in an episode of Scrubs TV series Scrubs , My Turf War and is featured in the theatrical trailer for Ken Loach s film Looking for Eric . Track listing CD Pass It On 2 19 J. Skelly Shadows Fall Acoustic Version 2 30 J. Skelly, Power Produced by The Coral Run Run 3 43 The Coral DVD Pass It On 2 19 J. Skelly Calendars and Clocks Acoustic Version 3 27 J. Skelly, Power Produced by The Coral Heartaches & Pancakes 3 05 J. Skelly, Power The Curry Files Short Film 7 Pass It On 2 19 J. Skelly Heartaches & Pancakes 3 05 J. Skelly, Power Run Run 3 43 The Coral References Reflist 2 The Coral Category 2003 singles Category The Coral songs ... more details
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