Nuxeo
A comprehensive open source content management platform, Nuxeo provides several solutions to a business or an individual such as case management, document management and digital asset management – all in a single, integrated package. Known for its modular design and flexibility, Nuxeo offers a slew of features that cater to almost every content management need that a company may have. Nuxeo offers CMP (Content Management Platform) that allows organisations to focus on developing content-oriented applications, instead of weaving the data around the code. This allows for a modularised approach that could turn out quite handy for the business in several scenarios.
The open document management system that comes with Nuxeo contains a whole set of features, such as support for multi-formatted content, meta-data standardisation, easy navigation within the structure, and secure workflow to ensure that no data is compromised upon.
Nuxeo’s site offers more detailed coverage of its features, and can be accessed here: http://www.nuxeo.com/en/products/document-management
LifeRay
LifeRay takes the concept of content and document management to a whole new level, altogether. This open source platform offers web-based content management through a portal. Liferay offers several worthwhile features, such as a unified central location for all kinds of media, support for mounting multiple content repositories from other service providers, support for user-defined content categorisation, one-click page creation, user-defined workflow, live page editing and scheduling features, etc.
Alfresco
Alfresco is one of the most popular open source content management systems available in the market, today. This system comes with a slew of features that would possibly address the needs of multiple users with different needs and requirements. Some of the noticeable features of the system are freedom for manual customisations, support for portable devices, web-based collaboration, and much more. This document management system, in particular, provides the flexibility of the cloud, and offers all the usual document storage, editing and manipulation features that are expected in a DMS. More information can be obtained from their website at http://www.alfresco.com
OpenDocMan
If at all there is a need for an open source-based document management system written purely in PHP, then OpenDocMan would just be what the doctor will have ordered for. This free DMS comes with web-based access, automated installation and several upgradable features. It is flexible enough to accommodate any pre-existing business rules that the company may have.
The document management features that OpenDocMan provides to its users include centralised storage of documents and files, access to restricted features, change tracking and history features, support for a wide range of file types, automated workflow, metadata fields for all files stored in the system to allow better management, physical storage on server for all related documents, quick browsing and access features with sorting filters, as well.
If this is not enough, OpenDocMan requires very little resources for operation, and can run on low configurations, too.
Plone
Plone is another state-of-the-art open source content management system (CMS) that provides or comes loaded with some powerful features. The latest version of the system is v4, which offers some really cool features such as better memory efficiency, support in handling massive file sizes, etc. It also works off Python and NoSQL to make for a very good user experience. With over 340 core developers and more than 300 solution providers worldwide, one has no choice but to go with the claims that Plone makes, when it says that the latest version of Plone is 50 % faster than its predecessor. A better understanding of Plone’s flexibility can be achieved by simply visiting their website: http://plone.org/