1.
Standardization
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It can also facilitate commoditization of formerly custom processes. This view includes the case of spontaneous standardization processes, to de facto standards. Standard weights and measures were developed by the Indus Valley Civilisation, weights existed in multiples of a standard weight and in categories. Technical standardisation enabled gauging devices to be used in angular measurement and measurement for construction. Uniform units of length were used in the planning of such as Lothal, Surkotada, Kalibangan, Dolavira, Harappa. The weights and measures of the Indus civilisation also reached Persia and Central Asia, Standardisation is also related to Processes. In view of large variations in units related to Civil, Electrical and other Engineering streams, engineers united to overcome the situation and this association later on gave birth to ISO in 1950. ISO stands for International Organisation for Standardisation and this voluntary organisation is solely dedicated to standardisation and makes standards related to it. Certification as per ISO norms is popular all across world, henry Maudslay developed the first industrially practical screw-cutting lathe in 1800. This allowed for the standardisation of screw thread sizes for the first time, before this, screw threads were usually made by chipping and filing. Nuts were rare, metal screws, when made at all, were usually for use in wood, metal bolts passing through wood framing to a metal fastening on the other side were usually fastened in non-threaded ways. This was an advance in workshop technology. Maudslays work, as well as the contributions of other engineers, accomplished a modest amount of industry standardization, joseph Whitworths screw thread measurements were adopted as the first national standard by companies around the country in 1841. It came to be known as the British Standard Whitworth, and was adopted in other countries. This new standard specified a 55° thread angle and a depth of 0. 640327p and a radius of 0. 137329p. The thread pitch increased with diameter in steps specified on a chart, an example of the use of the Whitworth thread is the Royal Navys Crimean War gunboats. These were the first instance of mass-production techniques being applied to marine engineering, American Unified Coarse was originally based on almost the same imperial fractions. The Unified thread angle is 60° and has flattened crests, thread pitch is the same in both systems except that the thread pitch for the 1⁄2 in bolt is 12 threads per inch in BSW versus 13 tpi in the UNC
2.
International Organization for Standardization
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The International Organization for Standardization is an international standard-setting body composed of representatives from various national standards organizations. Founded on 23 February 1947, the organization promotes worldwide proprietary and it is headquartered in Geneva, Switzerland, and as of March 2017 works in 162 countries. It was one of the first organizations granted general consultative status with the United Nations Economic, ISO, the International Organization for Standardization, is an independent, non-governmental organization, the members of which are the standards organizations of the 162 member countries. It is the worlds largest developer of international standards and facilitates world trade by providing common standards between nations. Nearly twenty thousand standards have been set covering everything from manufactured products and technology to food safety, use of the standards aids in the creation of products and services that are safe, reliable and of good quality. The standards help businesses increase productivity while minimizing errors and waste, by enabling products from different markets to be directly compared, they facilitate companies in entering new markets and assist in the development of global trade on a fair basis. The standards also serve to safeguard consumers and the end-users of products and services, the three official languages of the ISO are English, French, and Russian. The name of the organization in French is Organisation internationale de normalisation, according to the ISO, as its name in different languages would have different abbreviations, the organization adopted ISO as its abbreviated name in reference to the Greek word isos. However, during the meetings of the new organization, this Greek word was not invoked. Both the name ISO and the logo are registered trademarks, the organization today known as ISO began in 1926 as the International Federation of the National Standardizing Associations. ISO is an organization whose members are recognized authorities on standards. Members meet annually at a General Assembly to discuss ISOs strategic objectives, the organization is coordinated by a Central Secretariat based in Geneva. A Council with a membership of 20 member bodies provides guidance and governance. The Technical Management Board is responsible for over 250 technical committees, ISO has formed joint committees with the International Electrotechnical Commission to develop standards and terminology in the areas of electrical and electronic related technologies. Information technology ISO/IEC Joint Technical Committee 1 was created in 1987 to evelop, maintain, ISO has three membership categories, Member bodies are national bodies considered the most representative standards body in each country. These are the members of ISO that have voting rights. Correspondent members are countries that do not have their own standards organization and these members are informed about ISOs work, but do not participate in standards promulgation. Subscriber members are countries with small economies and they pay reduced membership fees, but can follow the development of standards
3.
Code
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An early example is the invention of language which enabled a person, through speech, to communicate what he or she saw, heard, felt, or thought to others. But speech limits the range of communication to the distance a voice can carry, decoding is the reverse process, converting code symbols back into a form that the recipient of that understands time. One reason for coding is to communication in places where ordinary plain language. For example, semaphore, where the configuration of flags held by a signaller or the arms of a semaphore tower encodes parts of the message, another person standing a great distance away can interpret the flags and reproduce the words sent. An extension of the code for representing sequences of symbols over the alphabet is obtained by concatenating the encoded strings. Before giving a precise definition, this is a brief example. The mapping C = is a code, whose alphabet is the set. Using the extension of the code, the encoded string 0011001011 can be grouped into codewords as 0 011 0 01 011, and these in turn can be decoded to the sequence of source symbols acabc. Using terms from formal language theory, the mathematical definition of this concept is as follows. In this section, we consider codes which encode each character by a code word from some dictionary. Variable-length codes are useful when clear text characters have different probabilities. A prefix code is a code with the property, there is no valid code word in the system that is a prefix of any other valid code word in the set. Huffman coding is the most known algorithm for deriving prefix codes, prefix codes are widely referred to as Huffman codes even when the code was not produced by a Huffman algorithm. Other examples of prefix codes are country calling codes, the country and publisher parts of ISBNs, Krafts inequality characterizes the sets of codeword lengths that are possible in a prefix code. Virtually any uniquely decodable code, not necessary a prefix one. Codes may also be used to represent data in a way more resistant to errors in transmission or storage, such a code is called an error-correcting code, and works by including carefully crafted redundancy with the stored data. Examples include Hamming codes, Reed–Solomon, Reed–Muller, Walsh–Hadamard, Bose–Chaudhuri–Hochquenghem, Turbo, Golay, Goppa, low-density parity-check codes, error detecting codes can be optimised to detect burst errors, or random errors. A cable code replaces words with words, allowing the same information to be sent with fewer characters, more quickly
4.
Country
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A country is a region that is identified as a distinct national entity in political geography. Sometimes the word countries is used to both to sovereign states and to other political entities, while other times it refers only to states. The word country comes from Old French contrée, itself derived from Vulgar Latin contrata and it most likely entered the English language after the Franco-Norman invasion during the 11th century. Areas much smaller than a state may be called by names such as the West Country in England, the Black Country, Constable Country. In many European countries the words are used for sub-divisions of the territory, as in the German Bundesländer. The modern Italian contrada is a word with its meaning varying locally, the term country is frequently used to refer to sovereign states. There is no agreement on the number of countries in the world. There are 206 sovereign states, of which 193 states are members of the United Nations, all are defined as states by declarative theory of statehood and constitutive theory of statehood. The latest proclaimed state is South Sudan in 2011, the Kingdom of Denmark, a sovereign state, comprises Metropolitan Denmark and two nominally separate countries—the Faroe Islands, and Greenland—which are almost fully internally self-governing. The Kingdom of the Netherlands, a state, comprises four separate countries, Netherlands, Aruba, Curaçao. The degree of autonomy of non-sovereign countries varies widely, some are possessions of sovereign states, as several states have overseas territories, with citizenry at times identical and at times distinct from their own
5.
Administrative division
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Administrative divisions are granted a certain degree of autonomy and are usually required to manage themselves through their own local governments. Countries are divided up into smaller units to make managing their land. For example, a country may be divided into provinces, which, in turn, are divided into counties, which, in turn, may be divided in whole or in part into municipalities, and so on. Administrative divisions are separate from dependent territories, with the former being an integral part of the state. However, the administrative division can include dependent territories as well as accepted administrative divisions. For clarity and convenience the standard reference for the largest administrative subdivision of a country is called the first-level administrative division or first administrative level. Next smaller is called second-level administrative division or second administrative level, there is no fixed rule, for all politics is local as is perhaps well demonstrated by their relative lack of systemic order. In the realm of self-government, any of these can and does occur along a stretch of road—which for the most part is passing through rural unsettled countryside. In British cultural legacy, most territorial entities begin with fairly expansive counties which encompass a large area. Within those entities are the large and small cities or towns, many sister cities share a water boundary which quite often serves as a border of both cities and counties. For example, Cambridge and Boston, Massachusetts appear to the traveler as one large city, while locally they each are quite culturally different. Sovereign state, a national or supra-national division, country, a national or sub-national division. Administrative division codes of the Peoples Republic of China GADM, a database of country administrative areas. ISO 3166-2, specifically Codes for the representation of names of countries and their subdivisions — Part 2
6.
ISO 3166-1
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The official name of the standard is Codes for the representation of names of countries and their subdivisions – Part 1, Country codes. ISO 3166-1 alpha-3 – three-letter country codes which allow a visual association between the codes and the country names than the alpha-2 codes. The alphabetic country codes were first included in ISO3166 in 1974, as a widely used international standard, ISO 3166-1 is implemented in other standards and used by international organizations to allow facilitation of the exchange of goods and information. However, it is not the standard for country codes. Other country codes used by international organizations are partly or totally incompatible with ISO 3166-1. Currently 249 countries, territories, or areas of geographical interest are assigned codes in ISO 3166-1. Once a country name or territory name appears in either of two sources, it will be added to ISO 3166-1 by default. The ISO 3166/MA may reserve code elements for other entities that do not qualify for inclusion based on the above criteria, ISO 3166-1 is published officially in both English and French. For this reason, common components of names like Republic, Kingdom, United. As a consequence, for example, the United Kingdom is officially assigned the alpha-2 code GB rather than UK, based on its official name United Kingdom of Great Britain, some codes are chosen based on the native names of the countries. For example, Germany is assigned the alpha-2 code DE, based on its native name Deutschland, the following is a complete ISO 3166-1 encoding list of the countries which are assigned official codes. It is listed in order by the English short country name used by the ISO 3166/MA. Note, Each countrys alpha-2 code is linked to information about the assignment of its code elements. Besides the officially assigned codes, code elements may be expanded by using either reserved codes or user-assigned codes. Reserved code elements are codes which have become obsolete, or are required in order to enable a user application of the standard. Codes are usually reserved for countries, overseas territories, international organizations. A country is assigned new ISO 3166-1 codes if it changes its name or its territorial boundaries. In general, new codes are assigned if a country changes a significant part of its name
