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Open Atrium vs Trello System Properties Comparison

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Our visitors often compare Open Atrium and Trello with SharePoint, OpenProject and Redmine.

Editorial information provided by Project Management Zone
SystemsOpen Atriuminfoformerly 8Trees  Xexclude from comparisonTrello  Xexclude from comparison
DescriptionOpen Atrium is an open source collaboration tool based on Drupal.Trello is a web-based project management and collaboration tool based on Kanban-like lists.
CategoryProject CollaborationProject Planning
Project Collaboration
Project Management Zone Rankinginfomeasures the popularity of Project Management SystemsScore 3.80
Rank #124
Score 839.88
Rank #6
DeveloperPhase2 TechnologyTrelloinfoowned by Atlassian, originally by Fog Creek Software
Websitedrupal.org/­project/­openatriumtrello.com
Technical documentationdocs.openatrium.comhelp.trello.com
Social network pages
Twitter3,642followers
Facebook117,953likes
LinkedIn29,364followers
Twitter178,929followers
Initial release20092011
LicenseOpen SourceinfoGPL 2Web-based service (SaaS)infoSoftware-as-a-Service model
Web-based architectureyesyes
Programming languagePHP
Operating systemsLinux
OS X
Unix
Windows
Mobile appsnoAndroid
iOS
APIinfoApplication Programming InterfaceyesyesinfoREST
Multi-useryesyes
Authentication mechanismPassword
LDAPinfoLightweight Directory Access Protocol
OpenID
Password
Google sign-on
NotificationsEmailEmail
Mobile push
Project Planning Properties
Hierarchical tasksinfoSupport for parent-child relationships of tasksno
Recurring tasksinfoSupport for definition of tasks that occur repeatedlyno
Milestone trackinginfoMilestones indicate the completion of major deliverables, normally by completing a set of tasksno
Task dependenciesinfoDependencies between tasks are logical relationships that restrict the sequence of task executions, e.g. one task must be completed before another task can startno
Critical path managementinfoThe critical path method calculates the set of tasks that cannot be delayed without increasing the project's duration, taking into account task dependenciesno
Critical chain managementinfoThe critical chain method expands the critical path method by additionally taking resource constraints into accountno
Gantt chartsinfoBar chart to visualize a project's tasks and milestones schedulenoinfoavailable via 3rd party tools
PERT chartsinfoNetwork diagrams according to Program Evaluation Review Techniqueno
BaselinesinfoSupport for creating and using snapshots of a project's plan in terms of cost, scope and schedule no
Resource managementinfoSupport for managing a project's human and/or non-human resourcesno
Resource levelinginfoSupport for optimizing the allocation of a project's resourcesno
Time trackinginfoSupport for estimating and monitoring the time spent on a project's tasksno
Cost trackinginfoSupport for monitoring a project's expensesno
Earned value managementinfoSupport for tracking a project's performance and progress via earned value measurementsno
Risk managementinfoSupport for identifying and keeping track of project risks and risk-related activitiesno
Scrum supportinfoSupport for typical Scrum techniques such as sprints, backlogs and burn-down chartsno
Kanban supportinfoSupport for typical Kanban techniques such as visualization of tasks on boards using cardsyes
Project portfolio management infoSupport for collectively managing a set of current or proposed projects, e.g. by evaluation and prioritization of projectsno
Project Collaboration Properties
Project wikiyesno
Discussion forumyesyesinfoconversations
Online chatnono
Audio conferencingnono
Video conferencingnono
Screen sharingnono
Calendar sharingyesnoinfointegration with external calendar tools is possible
Contact sharingnono
Document sharingyesyesinfocard attachments
File versioningnono

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More Resources
Open AtriumTrello
Project Management Zone blog posts

Trello is the Project Management System of the Year for the third year in a row
3 January 2019, Matthias Gelbmann

Trello is the Project Management System of the Year for the second year in a row
4 January 2018, Matthias Gelbmann

Trello is the Project Management System of the Year
4 January 2017, Matthias Gelbmann

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