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ATYL: Any tags you like - A guideline that allows users to freely invent new tags for objects that are verifiable and mappable in OpenStreetMap but for which there is no existing tagging scheme yet.
C
Cadastre : an official index map showing the location and extent of plots of land ('parcels') along with their ownership. For the UK example, see INSPIRE.
GPS trace 轨迹: A time series of location points recorded by a GPS receiver, from which the route taken can be inferred (i.e. a GNSS tracelog).
GPS track : GPS trace的变种
GPS unit : GPS接收器
GPX : [[wikipedia:zh:GPX|GPS交换格式]: an XML format used to represent data collected by GPS units. The OSM server accepts data in GPX format before processing it into the OSM data model.
iD : The main browser-based OSM editing software. (See also id.)
id or ID (also osm-id) : Usually refers to the unique reference numbers of Elements. For example, the id of this area is 263621287. Can also refer to the usernames or unique reference numbers of OpenStreetMap users: see User ID. See also iD.
Mapping : The process of gathering data for the OSM map. Arguably best done 'on the ground', with paper and pencil in hand.
Markup : A very simple computer language that allows an author to use special characters (e.g., ' / < >) to tell a computer how to display some text. Many different markup systems are in use across different OSM channels: it's optional, so don't let it put you off contributing!
OCOSMD : Obsessive Compulsive OpenStreetMapping Disorder. Search for OCOSMD with your favourite search engine for examples.
OGC : The Open Geospatial Consortium (http://www.opengeospatial.org/). A non-profit body that defines standards for the use and storage of geospatial data.
Open : We try to do everything in the spirit of openness. Our maps are "open" in that anyone can use them (licensing issues notwithstanding), anyone can see how they were created, anyone can participate in that process. In addition most of our software is Open Source, meaning that software developers can participate in developing the project in that way.
Open Source 开源 : 本着开放精神编写的软件，其源代码开放以供（免费）下载、修改和再传播。为避免混淆，请不要将其称为OS！
Operating System 操作系统 : 用于计算机系统底层管理的软件，例如 Linux、Mac OS X、Windows 或 Solaris。手持设备也有。为避免混淆，请不要将其称为OS！
Ordnance Survey : UK government mapping agency, with extremely detailed maps collected and funded by the taxpayer... and then sold back to them at prohibitively expensive prices. To avoid confusion, please don't refer to it as OS!
OS : May refer to any of three different things: "Open Source", "Operating System", and (in the UK) "Ordnance Survey".
OSGeo : The Open Source Geospatial Foundation. Promotes the development and use of Open Source, community-based Geospatial software.
Projection: A method of translating the roughly spherical surface of the earth to a flat display. The standard projection of OSM material is Plate Carree (no transformation, EPSG:4326). The standard projection for rendering OSM data onto map tiles is Spherical Mercator (EPSG:900913)
Query language 查询语言: 计算机不懂人话，因此您的查询必须以计算机可以理解的语言发送：在 OSM 中，这一般是Overpass QL。
R
Redaction: Removing from view data where the user did not agree to the new OpenStreetMap contributor terms and license change to Open Database License (ODBL). See [1]
regex or regular expression : Roughly, a pattern. These are used in a database query when you want to find any and all strings that match the pattern you specify.
Ref : a Tag used to enter reference numbers to objects, usually from official sources. For example, all parts of the motorway that runs from London to Cambridge get the tag "ref=M11" see Map_Features on the wiki.
REST : Web development paradigm which we adopt with our protocol interface (API). It means we make objects available at unique URLs, and follow standard use of HTTP protocol features.
Ruby : A multi-purpose programming language. We have a number of data manipulation scripts and libraries in Ruby. The protocol interface was originally written in pure Ruby before being ported to Ruby on Rails.
Ruby on Rails : Called "Rails" for short. A Ruby framework for rapid data-driven web development. OSM core components were ported to Ruby on Rails, see The Rails Port.
The Rails Port : OSM core components: The protocol interface (API) and the front end website components are often referred to as as "The Rails Port" because there was a large development effort to port these (change the code over) to Ruby on Rails. They were originally written in pure Ruby. The rails port runs on the Servers/www
S
Segment : Segments were a data primitive in old versions of the OSM API.
SiRFstar III : A GPS chipset by SiRF Technologies.
Talk page : A page for talking about a "main" page. E.g., this page is the Glossary. To talk about what's here, you can visit Talk:Glossary. Not to be confused with a User Talk page (see under "U").
Template : In the Wiki, a template is a piece of wikimarkup that makes text display (render) in a special way (e.g., it may be in a different font). Using a template on a page is called "transcluding" a template: not only is it included, but it can later be changed centrally across (trans) all pages where it is found. See the MediaWiki manual: mw:Help:Templates
Trace : (noun) Usually refers to a GPS trace (otherwise known a "GPS Track", see Recording GPS tracks), as on the website: traces. For the verb, see Tracing.
Tracing : (1) Following features visible in aerial imagery to add objects to the map (e.g. "tracing a building outline"); (2) Creating traces with a GPS receiver.
Transclude : See Template.
Track : (1) a "GPS track" (see Recording GPS tracks); (2) a type of footpath / rough road (see Track)
Tracklog : Yet another word for meaning the same as a GPS track / trace.
U
User ID : Strictly, an OSM user's unique identification number. May also refer to a user's User name. Every OSM user has one of each: the numerical user IDs are usually hidden, but are used in some downstream services as a more reliable identifier (they can't be changed).
User name (also "Display name") : The name you use to log in to OpenStreetMap. It also appears on your profile page, and in your profile page URL.
User talk page : A place where others can talk to you, in public, by posting messages to your personal page. The page address is User talk:<YourUsername>. Don't confuse it with a Talk page: see above under "T".
"Wiki, The" : This website, wiki.openstreetmap.org. The main reference point for information on everything in OSM. Mostly describes best/accepted practice but not always, and definitely not 'the last word'.
