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38-589: USS Oliver Hazard Perry (FFG-7) was the lead ship of the Oliver Hazard Perry class of guided-missile frigates . She was named for Oliver Hazard Perry , an American naval hero who was victorious at the 1813 Battle of Lake Erie . Oliver Hazard Perry (FFG-7) was the first ship and, as of 2019, the only ship of the U.S. Navy to bear the name (although there were five previous US Navy ships named for Oliver Hazard Perry – four named USS Perry and one named USS Commodore Perry ). Oliver Hazard Perry

76-639: A mockup , which is an inert representation of a machine's appearance, often made of some non-durable substance. An electronics designer often builds the first prototype from breadboard or stripboard or perfboard , typically using "DIP" packages. However, more and more often the first functional prototype is built on a "prototype PCB " almost identical to the production PCB, as PCB manufacturing prices fall and as many components are not available in DIP packages, but only available in SMT packages optimized for placing on

114-425: A PCB. Builders of military machines and aviation prefer the terms "experimental" and "service test". In electronics , prototyping means building an actual circuit to a theoretical design to verify that it works, and to provide a physical platform for debugging it if it does not. The prototype is often constructed using techniques such as wire wrapping or using a breadboard , stripboard or perfboard , with

152-529: A favorite among US Military modelers), railroad equipment, motor trucks, motorcycles, and space-ships (real-world such as Apollo/Saturn Vs, or the ISS). As of 2014, basic rapid prototype machines (such as 3D printers ) cost about $ 2,000, but larger and more precise machines can cost as much as $ 500,000. In architecture , prototyping refers to either architectural model making (as form of scale modelling ) or as part of aesthetic or material experimentation , such as

190-727: A museum ship and a memorial for the Battle of Lake Erie . The group was unable submit a viable financial plan together in time so the Perry was sold for scrap in December 2005. Lead ship The lead ship , name ship , or class leader is the first of a series or class of ships that are all constructed according to the same general design . The term is applicable to naval ships and large civilian vessels. Large ships are very complex and may take five to ten years to build. Improvements based on experience with building and operating

228-499: A time to the initial prototype. In many programming languages , a function prototype is the declaration of a subroutine or function (and should not be confused with software prototyping). This term is rather C / C++ -specific; other terms for this notion are signature , type and interface . In prototype-based programming (a form of object-oriented programming ), new objects are produced by cloning existing objects, which are called prototypes. The term may also refer to

266-472: A way that the Planck constant h is prescribed a value of exactly 6.626 070 15 × 10  joule-second (J⋅s) Until 1960, the meter was defined by a platinum-iridium prototype bar with two marks on it (that were, by definition, spaced apart by one meter), the international prototype of the metre , and in 1983 the meter was redefined to be the distance in free space covered by light in 1/299,792,458 of

304-518: Is a form of functional or working prototype. The justification for its creation is usually a data migration , data integration or application implementation project and the raw materials used as input are an instance of all the relevant data which exists at the start of the project. The objectives of data prototyping are to produce: To achieve this, a data architect uses a graphical interface to interactively develop and execute transformation and cleansing rules using raw data. The resultant data

342-517: Is becoming practical to eliminate the creation of a physical prototype (except possibly at greatly reduced scales for promotional purposes), instead modeling all aspects of the final product as a computer model . An example of such a development can be seen in Boeing 787 Dreamliner , in which the first full sized physical realization is made on the series production line. Computer modeling is now being extensively used in automotive design, both for form (in

380-431: Is possible that a prototype may fail to perform acceptably although the production design may have been sound. Conversely, prototypes may perform acceptably but the production design and outcome may prove unsuccessful. In general, it can be expected that individual prototype costs will be substantially greater than the final production costs due to inefficiencies in materials and processes. Prototypes are also used to revise

418-414: Is then evaluated and the rules refined. Beyond the obvious visual checking of the data on-screen by the data architect, the usual evaluation and validation approaches are to use Data profiling software and then to insert the resultant data into a test version of the target application and trial its use. When developing software or digital tools that humans interact with, a prototype is an artifact that

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456-499: Is used as the standard of measurement of some physical quantity to base all measurement of that physical quantity against. Sometimes this standard object is called an artifact . In the International System of Units ( SI ), there remains no prototype standard since May 20, 2019 . Before that date, the last prototype used was the international prototype of the kilogram , a solid platinum-iridium cylinder kept at

494-409: Is used to ask and answer a design question. Prototypes provide the means for examining design problems and evaluating solutions. HCI practitioners can employ several different types of prototypes: In the field of scale modeling (which includes model railroading , vehicle modeling, airplane modeling , military modeling, etc.), a prototype is the real-world basis or source for a scale model—such as

532-535: The Adelaide class in Royal Australian Navy service. Prototype A prototype can also mean a typical example of something such as in the use of the derivation ' prototypical '. This is a useful term in identifying objects, behaviours and concepts which are considered the accepted norm and is analogous with terms such as stereotypes and archetypes . The word prototype derives from

570-594: The Bureau International des Poids et Mesures (International Bureau of Weights and Measures) in Sèvres France (a suburb of Paris ) that by definition was the mass of exactly one kilogram . Copies of this prototype are fashioned and issued to many nations to represent the national standard of the kilogram and are periodically compared to the Paris prototype. Now the kilogram is redefined in such

608-528: The Forty Wall House open source material prototyping centre in Australia. Architects prototype to test ideas structurally, aesthetically and technically. Whether the prototype works or not is not the primary focus: architectural prototyping is the revelatory process through which the architect gains insight. In the science and practice of metrology , a prototype is a human-made object that

646-589: The Greek πρωτότυπον prototypon , "primitive form", neutral of πρωτότυπος prototypos , "original, primitive", from πρῶτος protos , "first" and τύπος typos , "impression" (originally in the sense of a mark left by a blow, then by a stamp struck by a die (note "typewriter"); by implication a scar or mark; by analogy a shape i.e. a statue, (figuratively) style, or resemblance; a model for imitation or illustrative example—note "typical"). Prototypes explore different aspects of an intended design: In general,

684-536: The Prototype Javascript Framework . Additionally, the term may refer to the prototype design pattern. Continuous learning approaches within organizations or businesses may also use the concept of business or process prototypes through software models. The concept of prototypicality is used to describe how much a website deviates from the expected norm, and leads to a lowering of user preference for that site's design. A data prototype

722-421: The styling and aerodynamics of the vehicle) and in function—especially for improving vehicle crashworthiness and in weight reduction to improve mileage. The most common use of the word prototype is a functional, although experimental, version of a non-military machine (e.g., automobiles, domestic appliances, consumer electronics) whose designers would like to have built by mass production means, as opposed to

760-520: The Reagan administration and Secretary John Lehman as not part of the 500 ship navy plan, but ultimately proved useful as anti-submarine ships if fitted to carry Seahawks and towed arrays and into the 21st Century as low grade patrol ships making up the numbers in a USN desperately short of escorts. Oliver Hazard Perry was ordered from Bath Iron Works on 30 October 1973 as part of the FY73 program, and

798-404: The creation of prototypes will differ from creation of the final product in some fundamental ways: Engineers and prototype specialists attempt to minimize the impact of these differences on the intended role for the prototype. For example, if a visual prototype is not able to use the same materials as the final product, they will attempt to substitute materials with properties that closely simulate

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836-407: The cycle returns to customer evaluation. The cycle starts by listening to the user, followed by building or revising a mock-up, and letting the user test the mock-up , then back. There is now a new generation of tools called Application Simulation Software which help quickly simulate application before their development. Extreme programming uses iterative design to gradually add one feature at

874-403: The design for the purposes of reducing costs through optimization and refinement. It is possible to use prototype testing to reduce the risk that a design may not perform as intended, however prototypes generally cannot eliminate all risk. Building the full design is often expensive and can be time-consuming, especially when repeated several times—building the full design, figuring out what

912-508: The full design. In technology research, a technology demonstrator is a prototype serving as proof-of-concept and demonstration model for a new technology or future product, proving its viability and illustrating conceivable applications. In large development projects, a testbed is a platform and prototype development environment for rigorous experimentation and testing of new technologies, components, scientific theories and computational tools. With recent advances in computer modeling it

950-437: The intended final materials. Engineers and prototyping specialists seek to understand the limitations of prototypes to exactly simulate the characteristics of their intended design. Prototypes represent some compromise from the final production design. This is due to the skill and choices of the designer(s), and the inevitable inherent limitations of a prototype. Due to differences in materials, processes and design fidelity, it

988-421: The launch ceremony platform, and gave the bow of the frigate – which was by this time starting to move slightly – a shove with one hand, and so John Wayne famously appeared to have 'pushed' a US warship down her slip-way. Oliver Hazard Perry was one of the few lead ships to be subjected to shock trials. These series of trials conducted early in the life of the ship put this steel hull / aluminum superstructure to

1026-528: The lead ship are likely to be incorporated into the design or construction of later ships in the class, so it is rare to have vessels that are identical. The second and later ships are often started before the first one is completed, launched and tested. Nevertheless, building copies is still more efficient and cost effective than building prototypes , and the lead ship will usually be followed by copies with some improvements rather than radically different versions. The improvements will sometimes be retrofitted to

1064-494: The lead ship. Occasionally, the lead ship will be launched and commissioned for shakedown testing before following ships are completed, making the lead ship a combination of template and prototype, rather than expending resources on a prototype that will never see actual use. Ship classes are typically named in one of two ways; echoing the name of the lead ship, such as the Pennsylvania -class battleships , whose lead ship

1102-696: The overall readiness of the ship, nor did it prevent Oliver Hazard Perry from achieving the record for the most-ever hours put on the GE LM2500 Main Propulsion engine. After 19.2 years of active service, Oliver Hazard Perry was decommissioned on 20 February 1997, in Mayport, FL. Though she was stricken on 3 May 1999, Oliver Hazard Perry was held in the museum donation category at the former Navy shipyard in Philadelphia , Pennsylvania. A group had hoped to bring her to Toledo, Ohio as

1140-429: The problems are and how to solve them, then building another full design. As an alternative, rapid prototyping or rapid application development techniques are used for the initial prototypes, which implement part, but not all, of the complete design. This allows designers and manufacturers to rapidly and inexpensively test the parts of the design that are most likely to have problems, solve those problems, and then build

1178-411: The prototyping platform, or replace it with only the microcontroller chip and the circuitry that is relevant to their product. Prototype software is often referred to as alpha grade , meaning it is the first version to run. Often only a few functions are implemented, the primary focus of the alpha is to have a functional base code on to which features may be added. Once alpha grade software has most of

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1216-438: The real EMD GP38-2 locomotive—which is the prototype of Athearn 's (among other manufacturers) locomotive model. Technically, any non-living object can serve as a prototype for a model, including structures, equipment, and appliances, and so on, but generally prototypes have come to mean full-size real-world vehicles including automobiles (the prototype 1957 Chevy has spawned many models), military equipment (such as M4 Shermans,

1254-463: The required features integrated into it, it becomes beta software for testing of the entire software and to adjust the program to respond correctly during situations unforeseen during development. Often the end users may not be able to provide a complete set of application objectives, detailed input, processing, or output requirements in the initial stage. After the user evaluation, another prototype will be built based on feedback from users, and again

1292-459: The result being a circuit that is electrically identical to the design but not physically identical to the final product. Open-source tools like Fritzing exist to document electronic prototypes (especially the breadboard-based ones) and move toward physical production. Prototyping platforms such as Arduino also simplify the task of programming and interacting with a microcontroller . The developer can choose to deploy their invention as-is using

1330-486: The test. The proximity of the tests (seen in associated pictures), caused many of the machine mounts and components to become warped or damaged. This damage created alignment problems for the engineering and combat systems teams in the years to come. The ship regularly required waivers on machine performance due to the warping of many mounting brackets. The shock tests also created cracks in the aluminum superstructure that required frequent repairs. However, this did not affect

1368-564: Was USS  Pennsylvania , and the Olympic class , whose lead ship was RMS  Olympic , or defining a theme by which vessels in the class are named, as in the Royal Navy 's Tribal-class frigates , named after tribes of the world, such as HMS  Mohawk . If a ship class is produced for another navy, the first active unit will become the lead ship for that navy; for example, the Oliver Hazard Perry -class frigates are known as

1406-424: Was in service from 1977 to 1997 and was scrapped in 2005. The class was originally intended as austere "low" category guided missile frigates (compared with the high capability Spruance class ) for General Purpose and Anti-Air convoy escort. They were built under a cloud of controversy, with their very light gun armament and lack of redundancy and duplicated systems in event of ship being hit. They were regarded by

1444-429: Was laid down on 12 June 1975, launched on 25 September 1976, and commissioned on 17 December 1977. She was ordered as PFG-109 but was redesignated as FFG-7 in the 1975 fleet designation realignment on 1 June 1975, before she was laid down. During her launch ceremony on 25 September 1976, the ship found herself briefly stuck on the slip-way. Film star John Wayne appeared from the crowd of watching dignitaries, climbed

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