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StreetComplete
StreetComplete is an easy to use OpenStreetMap#Editing_software , OpenStreetMap editor that can be used without prior knowledge about OpenStreetMap. The app prompts users to answer questions like ''"What are the opening hours here?"'' or ''"Is this still here?"'' about places and objects in their surrounding. Answering these questions helps to keep the OpenStreetMap database complete and up to date. Functionality The app is based on a map view in which places and things with missing or dated OpenStreetMap data are marked. Users can complete this data by answering simple questions (called quests). These quests are designed in such a way that answering them on site is quick and easy and no special expertise or prior knowledge is needed. In case the answer to a quest does not match one of the selection options, other OpenStreetMap contributors can be asked for help by submitting a note. StreetComplete focuses on adding further details to already existing objects. As a result of thi ...
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StreetComplete - House Number Quest
StreetComplete is an easy to use OpenStreetMap editor that can be used without prior knowledge about OpenStreetMap. The app prompts users to answer questions like ''"What are the opening hours here?"'' or ''"Is this still here?"'' about places and objects in their surrounding. Answering these questions helps to keep the OpenStreetMap database complete and up to date. Functionality The app is based on a map view in which places and things with missing or dated OpenStreetMap data are marked. Users can complete this data by answering simple questions (called quests). These quests are designed in such a way that answering them on site is quick and easy and no special expertise or prior knowledge is needed. In case the answer to a quest does not match one of the selection options, other OpenStreetMap contributors can be asked for help by submitting a note. StreetComplete focuses on adding further details to already existing objects. As a result of this, users can only modify a subse ...
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StreetComplete
StreetComplete is an easy to use OpenStreetMap#Editing_software , OpenStreetMap editor that can be used without prior knowledge about OpenStreetMap. The app prompts users to answer questions like ''"What are the opening hours here?"'' or ''"Is this still here?"'' about places and objects in their surrounding. Answering these questions helps to keep the OpenStreetMap database complete and up to date. Functionality The app is based on a map view in which places and things with missing or dated OpenStreetMap data are marked. Users can complete this data by answering simple questions (called quests). These quests are designed in such a way that answering them on site is quick and easy and no special expertise or prior knowledge is needed. In case the answer to a quest does not match one of the selection options, other OpenStreetMap contributors can be asked for help by submitting a note. StreetComplete focuses on adding further details to already existing objects. As a result of thi ...
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OpenStreetMap
OpenStreetMap (abbreviated OSM) is a free, Open Database License, open geographic database, map database updated and maintained by a community of volunteers via open collaboration. Contributors collect data from surveying, surveys, trace from Aerial photography, aerial photo imagery or satellite imagery, and import from other freely licensed geodata sources. OpenStreetMap is Free content, freely licensed under the Open Database License and is commonly used to make electronic maps, inform turn-by-turn navigation, and assist in humanitarian aid and Data and information visualization, data visualisation. OpenStreetMap uses its own data model to store geographical features which can then be exported into other GIS file formats. The OpenStreetMap website itself is an Web mapping, online map, geodata search engine, and editor. OpenStreetMap was created by Steve Coast in response to the Ordnance Survey, the United Kingdom's national mapping agency, failing to release its data to the pub ...
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Kotlin (programming Language)
Kotlin () is a Cross-platform software, cross-platform, static typing, statically typed, general-purpose programming language, general-purpose High-level programming language, high-level programming language with type inference. Kotlin is designed to interoperate fully with Java (programming language), Java, and the Java virtual machine, JVM version of Kotlin's standard library depends on the Java Class Library, but type inference allows its syntax (programming languages), syntax to be more concise. Kotlin mainly targets the JVM, but also compiles to JavaScript (e.g., for frontend web applications using React (software), React) or machine code, native code via LLVM (e.g., for native iOS apps sharing business logic with Android (operating system), Android apps). Language development costs are borne by JetBrains, while the Kotlin Foundation protects the Kotlin trademark. On 7 May 2019, Google announced that the Kotlin programming language had become its preferred language for Andro ...
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Android (operating System)
Android is an operating system based on a modified version of the Linux kernel and other open-source software, open-source software, designed primarily for touchscreen-based mobile devices such as smartphones and tablet computer, tablets. Android has historically been developed by a consortium of developers known as the Open Handset Alliance, but its most widely used version is primarily developed by Google. First released in 2008, Android is the world's Usage share of operating systems, most widely used operating system; the latest version, released on June 10, 2025, is Android 16. At its core, the operating system is known as the Android Open Source Project (AOSP) and is free and open-source software (FOSS) primarily licensed under the Apache License. However, most devices run the proprietary software, proprietary Android version developed by Google, which ships with additional proprietary closed-source software pre-installed, most notably Google Mobile Services (GMS), which ...
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GIS Software
A GIS software program is a computer program to support the use of a geographic information system, providing the ability to create, store, manage, query, Spatial analysis, analyze, and Cartographic design, visualize Geographic data and information, geographic data, that is, data representing phenomena for which location is important. The GIS software industry encompasses a broad range of commercial and open-source products that provide some or all of these capabilities within various information technology architectures."GIS Software - A description in 1000 words"
S. Steiniger and R. Weibel


History

The earliest geographic information systems, such as the Canadian Geographic Information System started in 19 ...
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GNU General Public License
The GNU General Public Licenses (GNU GPL or simply GPL) are a series of widely used free software licenses, or ''copyleft'' licenses, that guarantee end users the freedom to run, study, share, or modify the software. The GPL was the first copyleft license available for general use. It was originally written by Richard Stallman, the founder of the Free Software Foundation (FSF), for the GNU Project. The license grants the recipients of a computer program the rights of the Free Software Definition. The licenses in the GPL series are all copyleft licenses, which means that any derivative work must be distributed under the same or equivalent license terms. The GPL is more restrictive than the GNU Lesser General Public License, and even more distinct from the more widely used permissive software licenses such as BSD, MIT, and Apache. Historically, the GPL license family has been one of the most popular software licenses in the free and open-source software (FOSS) domai ...
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GitHub
GitHub () is a Proprietary software, proprietary developer platform that allows developers to create, store, manage, and share their code. It uses Git to provide distributed version control and GitHub itself provides access control, bug tracking system, bug tracking, software feature requests, task management, continuous integration, and wikis for every project. Headquartered in California, GitHub, Inc. has been a subsidiary of Microsoft since 2018. It is commonly used to host open source software development projects. GitHub reported having over 100 million developers and more than 420 million Repository (version control), repositories, including at least 28 million public repositories. It is the world's largest source code host Over five billion developer contributions were made to more than 500 million open source projects in 2024. About Founding The development of the GitHub platform began on October 19, 2005. The site was launched in April 2008 by Tom ...
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ID (software)
iD is a free software online editor for OpenStreetMap (OSM) geodata created in JavaScript and released in 2013. It is the most popular and the default editor on the main OSM page. iD's features include choosing custom aerial imagery and native support for Mapillary photos. History Prior to iD, the primary web editor for OpenStreetMap data was the Flash-based Potlatch 2 editor. The iD editor project was founded by the author of Potlatch 1 and 2, Richard Fairhurst, online on July 13, 2012 and at the State of the Map conference on October 14, 2012. In September 2012, the Knight Foundation announced the winners of the Knight News Challenge: Data competition. The team from Development Seed/Mapbox was selected as a winner for their proposal to develop new contribution tools for OpenStreetMap and was awarded a grant of $575,000. This editor was meant to be a Potlatch 2 architecture reimplementation in JavaScript with redesigned user interface. The only big internal change was a d ...
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Gamification
Gamification is the process of enhancing systems, services, organisations and activities through the integration of game design elements and principles in non-game contexts. The goal is to increase user engagement, motivation, competition and participation through the use of game mechanics such as points, badges, leaderboards and rewards. It is a component of system design, and it commonly employs game design elements to improve user engagement, organizational productivity, flow, learning, crowdsourcing, knowledge retention, employee recruitment and evaluation, usability, usefulness of systems, physical exercise, tailored interactions and icebreaker activities in dating apps, traffic violations, voter apathy, public attitudes about alternative energy, and more. A collection of research on gamification shows that a majority of studies on gamification find it has positive effects on individuals. However, individual and contextual differences exist. Gamification can be achi ...
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Open Source
Open source is source code that is made freely available for possible modification and redistribution. Products include permission to use and view the source code, design documents, or content of the product. The open source model is a decentralized software development model that encourages open collaboration. A main principle of Open-source software, open source software development is peer production, with products such as source code, blueprints, and documentation freely available to the public. The open source movement in software began as a response to the limitations of proprietary code. The model is used for projects such as in open source appropriate technology, and open source drug discovery. Open source promotes universal access via an open-source or free license to a product's design or blueprint, and universal redistribution of that design or blueprint. Before the phrase ''open source'' became widely adopted, developers and producers used a variety of other terms, suc ...
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