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Open Atrium vs SharePoint vs Trello System Properties Comparison

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Editorial information provided by Project Management Zone
SystemsOpen Atriuminfoformerly 8Trees  Xexclude from comparisonSharePoint  Xexclude from comparisonTrello  Xexclude from comparison
DescriptionOpen Atrium is an open source collaboration tool based on Drupal.SharePoint is a web application framework and collaboration platform.Trello is a web-based project management and collaboration tool based on Kanban-like lists.
CategoryProject CollaborationProject CollaborationProject Planning
Project Collaboration
Project Management Zone Rankinginfomeasures the popularity of Project Management SystemsScore 4.22
Rank #125
Score 3,328.02
Rank #1
Score 859.41
Rank #5
DeveloperPhase2 TechnologyMicrosoftTrelloinfoowned by Atlassian, originally by Fog Creek Software
Websitedrupal.org/­project/­openatriumproducts.office.com/­en-us/­sharepointtrello.com
Technical documentationdocs.openatrium.comdocs.microsoft.com/­en-us/­sharepoint/­devhelp.trello.com
Social network pages
Twitter3,570followers
Facebook99,026likes
LinkedIn59,382followers
Twitter207,646followers
Facebook122,062likes
LinkedIn41,283followers
Twitter186,190followers
Initial release200920012011
LicenseOpen SourceinfoGPL 2Commercial
Web-based service (SaaS)infoSoftware-as-a-Service modelinfoSharePoint Online
Web-based service (SaaS)infoSoftware-as-a-Service model
Web-based architectureyesyesyes
Programming languagePHPC#
Operating systemsLinux
OS X
Unix
Windows
Windows
Mobile appsnoAndroidinfonumerous 3rd-party apps
iOSinfonumerous 3rd-party apps
Windows Phoneinfonumerous 3rd-party apps
Android
iOS
APIinfoApplication Programming Interfaceyesyesinfoseveral sets of APIs, including object models and REST web service.yesinfoREST
Multi-useryesyesyes
Authentication mechanismPassword
LDAPinfoLightweight Directory Access Protocol
OpenID
Password
Active Directory
Password
Google sign-on
NotificationsEmailEmail
Mobile push
RSS feeds
Email
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 wikiyesyesinfoSharePoint pagesno
Discussion forumyesyesyesinfoconversations
Online chatnoyesno
Audio conferencingnonoinfoavailable via Microsoft Lync and other productsno
Video conferencingnonoinfoavailable via Microsoft Lync and other productsno
Screen sharingnoyesno
Calendar sharingyesyesnoinfointegration with external calendar tools is possible
Contact sharingnoyesno
Document sharingyesyesyesinfocard attachments
File versioningnoyesno

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More Resources
Open AtriumSharePointTrello
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