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itemprop="name">31</span></a><meta itemprop="position" content="4" /></li><li itemprop="itemListElement" itemscope itemtype="http://schema.org/ListItem" class="breadcrumb-item breadcrumb-item-end active" aria-current="page"><span itemprop="name">The NG project is modernizing arXiv</span><meta itemprop="position" content="5" /></li></ol></nav> <h1 class="page-title entry-title">The NG project is modernizing arXiv</h1> <div class="page-meta entry-meta"> <ul class="list-inline"> <li class="post-author list-inline-item"> <span class="sr-only">Author</span> <span class="meta-icon" aria-hidden="true"> <i class="cps-icon cps-icon-user"></i> </span> <span class="meta-text"> By <a href="https://blog.arxiv.org/author/mhl10-2/">Martin Lessmeister</a> </span> </li> <li class="post-date list-inline-item"> <span class="sr-only">Publication date</span> <span class="meta-icon" aria-hidden="true"> <i class="cps-icon cps-icon-calendar"></i> </span> <span class="meta-text"> October 31, 2019 </span> </li> <li class="post-categories list-inline-item"> <span class="sr-only">Categories:</span> <span class="meta-icon" aria-hidden="true"> <i class="cps-icon cps-icon-category"></i> </span> <span class="meta-text"> <a href="https://blog.arxiv.org/category/about-arxiv/" rel="category tag">about arXiv</a>, <a href="https://blog.arxiv.org/category/arxiv-development/" rel="category tag">arXiv development</a>, <a href="https://blog.arxiv.org/category/arxiv-updates/" rel="category tag">arXiv updates</a>, <a href="https://blog.arxiv.org/category/arxiv-ng/" rel="category tag">arXiv-NG</a>, <a href="https://blog.arxiv.org/category/member-advisory-board/" rel="category tag">Member Advisory Board</a>, <a href="https://blog.arxiv.org/category/scientific-advisory-board/" rel="category tag">Scientific Advisory Board</a> </span> </li> </ul> </div> </div> </header> <div class="main-wrapper wrapper" id="single-wrapper"> <div class="container" id="content"> <div class="row">  <div class="col-md-8 col-xl-9 content-area" id="primary"> <main class="site-main" id="main"> <article class="post-462 post type-post status-publish format-standard hentry category-about-arxiv category-arxiv-development category-arxiv-updates category-arxiv-ng category-member-advisory-board category-scientific-advisory-board" id="post-462"> <div class="entry-content"> <p>For arXiv to continue to provide reliable and rapid dissemination of research, our technical infrastructure needed to be modernized. As reliable as our classic system has been, its codebase and technologies have become antiquated and very difficult to maintain and extend. Over more than 20 years, it has evolved organically into a complicated monolith, comprised of disparate and sometimes unclear visions. Trying to move such a system forward is not sustainable and would push it beyond its limits. Therefore, in 2017, we launched the arXiv Next Generation (arXiv NG) project.</p> <h2>What are the goals of arXiv NG?</h2> <ul> <li style="font-weight: 400;"><strong>Incrementally replace the classic system. </strong>Gradually phase out components from the<span style="font-weight: 400;"> monolithic, mostly Perl legacy codebase, by replacing them with services written in Python.</span></li> <li style="font-weight: 400;"><strong>Improve the scaling, failure tolerance, and availability of the infrastructure.</strong> M<span style="font-weight: 400;">ove to a cloud-based infrastructure.</span></li> <li style="font-weight: 400;"><strong>Adopt open source practices to have higher engagement with external developers.</strong> <span style="font-weight: 400;">Nearly all NG code is in public GitHub repositories under <a href="https://opensource.org/licenses/MIT">MIT license</a>.</span></li> <li style="font-weight: 400;"><strong>Modernize user interfaces. </strong>A<span style="font-weight: 400;">ddress critical accessibility issues and provide greater </span><span style="font-weight: 400;">compatibility with mobile devices.</span></li> <li style="font-weight: 400;"><strong>Streamline development workflows. </strong>Operate on s<span style="font-weight: 400;">horter release cycles, enabling more (and more frequent) stakeholder feedback.</span></li> </ul> <h2>What are the main attributes of the architecture and its technologies?</h2> <ul> <li style="font-weight: 400;"><strong>Maintainability: </strong>Adopt<span style="font-weight: 400;"> mainstream, well-supported technologies, like Python, Docker and Kubernetes.</span></li> <li style="font-weight: 400;"><span style="font-weight: 400;"><strong>Evolvability</strong>: Move towards a </span><span style="font-weight: 400;">modular, service-based architecture where “sticky” interdependencies are minimized.</span></li> <li style="font-weight: 400;"><strong>Flexibility: </strong>M<span style="font-weight: 400;">ove away from a monolithic data architecture. Our data architecture should align with durability and evolvability goals, which vary across the platform.</span></li> <li style="font-weight: 400;"><strong>Better support for complex moderation and administrative workflows: </strong>Provide <span style="font-weight: 400;">support for quality assurance processes and better visibility and control over the submission, moderation, and announcement processes.</span></li> <li style="font-weight: 400;"><strong>Better API support and partner integrations: </strong>A<span style="font-weight: 400;">dopt modern standards for data serialization, authentication and authorization, as well as documentation. Increase overall throughput of APIs, and expose valuable backend services to trusted clients.</span></li> </ul> <h2>How do we seek input from users about features?</h2> <p>As we planned the arXiv NG project, we conducted a series of surveys of our users and moderators to get feedback about the issues and improvements our community wants to see. We continue to accept feature requests and bug reports <span style="font-weight: 400;">via </span><a href="mailto:help@arxiv.org">help@arxiv.org</a> and our feedback collectors on arxiv.org, and we also seek user input from all of our stakeholders in focus groups and direct outreach during our alpha/beta testing. This feedback continues to inform our planning and priority setting.</p> <h2>How do we set priorities?</h2> <p>There are a lot of things we want to accomplish to modernize our infrastructure and begin to improve for our community, so how do we prioritize what will be accomplished, how, and when? Three general rules govern how we set priorities:</p> <ul> <li style="font-weight: 400;"><b>Impact on core mission:</b><span style="font-weight: 400;"> How does work effect our core mission of supporting rapid dissemination, high service reliability, durability of data, and accessibility?</span></li> <li style="font-weight: 400;"><b>Technical dependencies and technical debt:</b><span style="font-weight: 400;"> Implementing solutions in the legacy codebase, and possibly out of sequence with arXiv NG, means that some work must be performed twice.</span></li> <li style="font-weight: 400;"><b>Opportunity cost:</b><span style="font-weight: 400;"> Is timing important due to external factors, such as the need to maintain compliance with standards and regulations?</span></li> </ul> <p><span style="font-weight: 400;">Final decisions on IT prioritization are made by the IT Lead, with direction from the Executive Director and Scientific Director, and with input from stakeholder groups.</span></p> <h2>Helpful links</h2> <ul> <li><span style="font-weight: 400;">arXiv NG arXitecture — </span><span style="font-weight: 400;"><a href="https://arxiv.github.io/arxiv-arxitecture/">https://arxiv.github.io/arxiv-arxitecture/</a></span></li> <li>arXiv on GitHub — <a href="https://github.com/arxiv">https://github.com/arxiv</a></li> <li>arXiv NG Milestones — <a href="https://arxiv-org.atlassian.net/issues/?filter=15106">https://arxiv-org.atlassian.net/issues/?filter=15106</a></li> <li>2019 Roadmap — <a href="https://confluence.cornell.edu/display/arxivpub/2019+arXiv+Roadmap">https://confluence.cornell.edu/display/arxivpub/2019+arXiv+Roadmap</a></li> </ul> </div> </article> <nav class="container navigation post-navigation"> <h2 class="sr-only">Post navigation</h2> <div class="row nav-links justify-content-between"> <span class="nav-previous"><a href="https://blog.arxiv.org/2019/09/19/donate-to-arxiv-4/" class="btn btn-secondary" rel="prev"><i aria-hidden="true" class="cps-icon cps-icon-chevron-left"></i>Donate to arXiv</a></span><span class="nav-next"><a href="https://blog.arxiv.org/2019/12/05/arxiv-machine-learning-classification-guide/" class="btn btn-secondary" rel="next">arXiv Machine Learning Classification Guide<i aria-hidden="true" class="cps-icon cps-icon-chevron-right"></i></a></span> </div> </nav> </main>  </div> <aside class="col-md-4 col-xl-3 widget-area sidebar-widget-area sidebar-widget-area-boxed" id="right-sidebar"> <div class="sidebar-widget-area-content"> <div id="search-3" class="sidebar-widget widget widget_search"> <form method="get" id="searchform" action="https://blog.arxiv.org/" role="search"> <label class="sr-only" for="searchform-s">Search</label> <div class="input-group"> <input class="field form-control" id="searchform-s" name="s" type="text" placeholder="Search..." value=""> <span class="input-group-append"> <button class="submit btn btn-primary" id="searchform-submit" type="submit"> <i aria-hidden="true" class="cps-icon cps-icon-search"></i> <span class="sr-only">Search Site</span> </button> </span> </div> </form> </div><div id="categories-5" class="sidebar-widget widget widget_categories"><h2 class="widget-title h h3">Categories</h2><form action="https://blog.arxiv.org" method="get"><label class="screen-reader-text" for="cat">Categories</label><select name='cat' id='cat' class='postform'> <option value='-1'>Select Category</option> <option class="level-0" value="600913">about arXiv</option> <option class="level-0" value="600934">arXiv accessibility</option> <option class="level-0" value="600909">arXiv development</option> <option class="level-0" value="600927">arXiv events</option> <option class="level-0" value="600929">arXiv fundraising</option> <option class="level-0" value="600910">arXiv jobs</option> <option class="level-0" value="600930">arXiv membership</option> <option class="level-0" value="600905">arXiv people</option> <option class="level-0" value="600914">arXiv repository news</option> <option class="level-0" value="600907">arXiv support</option> <option class="level-0" value="600917">arXiv updates</option> <option class="level-0" value="600918">arXiv UX</option> <option class="level-0" value="600906">arXiv-NG</option> <option class="level-0" value="600928">arXivLabs</option> <option class="level-0" value="600931">Governance</option> <option class="level-0" value="600915">Member Advisory Board</option> <option class="level-0" value="97520">moderation</option> <option class="level-0" value="600911">preprints</option> <option class="level-0" value="600916">Scientific Advisory Board</option> <option class="level-0" value="1">Uncategorized</option> </select> </form><script type="text/javascript"> /* <![CDATA[ */ (function() { var dropdown = document.getElementById( "cat" ); 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