Project Steering Committee

Welcome to the GeoServer organizational system. As with any open source project, we start with people.


This document describes the role and responsibilities of the Project Steering Committee, as well as the process under which it operates. Much of the definition and inspiration for the GeoServer PSC is taken from the MapServer Technical Steering Committee and the Plone foundation.

The committee is made up of individuals based on merit irrespective of organization ties.


The PSC is made up of individuals who are intended to represent the various communities which have a stake in GeoServer. An odd number is chosen to facilitate the voting process and help prevent ties. However, even with an odd number, the voting system may still allow for a tie in some cases. For this reason the PSC has an appointed Chair, whose sole responsibility is to break ties among the PSC.

Turnover is allowed and expected to accommodate people only able to become active on the project in intervals. A PSC member may step down at any time.

Current PSC

  • Alessio Fabiani

  • Andrea Aime

  • Ian Turton

  • Jody Garnett

  • Jukka Rahkonen

  • Kevin Smith

  • Nuno Oliveira

  • Simone Giannecchini

  • Torben Barsballe

We would like to thank prior PSC members:

  • Rob Atkinson

  • Justin Deoliveira

  • Chris Holmes

  • Brent Owens

  • Gabriel Roldan

  • Phil Scadden

  • Christian Mueller

  • Ben Caradoc-Davies

  • Brad Hards

PSC Membership

New PSC members

A new PSC member can be nominated at any time. Voting for a new PSC is done by current active PSC members. There is no hard limit to the number of PSC members, but we want a relatively active PSC. PSC nominations are generally given in recognition to very significant contributions to the project. Membership is open to non-technical people, for example if someone is to make huge advances to the documentation or marketing of GeoServer, for example.

Since we demand a fairly active PSC, we expect turnover may be high compared to other projects. Initially we aimed to keep it around 7 PSC members but over time, with sufficient reason, we’ve expanded it.

Nominated PSC members must recieve a majority of +1 vote’s from the PSC, and no -1’s.

PSC Chair is nominated following the same procedures as PSC members.

Stepping Down

If you find you cannot make meetings for a month or two, or have been unable to vote on proposals, by all means step aside. Thank you so much for your time, if you want to groom a successor and then nominate them that is cool, but the nomination process still applies.

If we do not hear from you for six months we will assume you lost, send out a search party and nominate your replacement.

That is to say, status on PSC is lost if not active at all in a two month period of time. Of course you can come back on to the PSC if you become active again, but a new nomination procedure will be needed.


First a chair is chosen by the current group of “active” committers. The Chair is then removed from the nominee list.

Everyone on the email lists gets 5 votes for PSC,. Once the list is accepted by those nominated, a volunteer will privately gather the votes posting the results. The 7 nominees receiving the most 5 votes will be selected as the PSC.

Dissolution of PSC

If there are no suitable replacements, the PSC can decide to go down in number. If the number of active PSC members drops below 5, however, then we may wish to ask the OSGeo Board for assistance. For more information check out the OSGeo Governance FAQ.


The primary role of the PSC is to make decisions relating to project management. The following decision making process is used. It is based on the “Proposal-Vote” system.

GeoServer Improvement Proposals

A GeoServer Improvement Proposals (GSIPs) is needed for any action that:

  • Has a major effect on others in the GeoServer community; or

  • Will break backwards compatibility; or

  • Change core code

For more on making a proposal see GeoServer Improvement Proposals.


Voting on GeoServer Improvement Proposal (GSIP)

  1. Proposals may be made by any interested party (PSC, Non-PSC, committer,user,etc…).

    All community members are encouraged to review proposals, and provide their support and feedback.

  2. Each PSC member may vote one of the following in support of the proposal:

    • +1 : For

    • +0: Mildly for, but mostly indifferent

    • -0: Mildly against, but mostly indifferent

    • -1 : Against, accompanied with a detailed reason of being against

  3. Voting remains open for ten days or until all PSC members have cast their vote.

    • At the end of ten days time any remaining votes are assumed to be +0.

    • Any active PSC member can during ten days request an extension of voting for an additional ten days; the voting period can only be extended once.

    • Any PSC member who votes “-1” against a proposal must provide a reasonable explanation as to why.

    • Any PSC member who votes “-1” against a proposal has a limited time to provide constructive feedback as to how their -1 vote can be addressed.

      The GSIP author must incorporate any reasonable feedback into the proposal.

      The PSC member who voted “-1” must consider whether their feedback has been addressed and whether they wish to change their vote.

  4. Voting results:

    • A vote of “+1” means support for a proposal

    • The neutral votes “+0”, “0”, and “-0” all count the same as “0” but permit PSC members to indicate a slight tendency for, neutral, or against a proposal respectively

    • A vote of “-1” means opposition to the proposal

    A unanimous response is:

    • Successful: No -1 votes against it, or

    • Unsuccessful: No +1 votes for it.

  5. A GSIP is accepted if it receives:

    • at least 30% “+1” votes, and

    • no “-1” votes (or all feedback from any “-1” votes has been addressed and any “-1” voters have changed their votes)

  6. In the event of an successful non unanimous vote, the following steps are taken:

    • Each member who votes -1 may supply an alternative with which the original author can use to rework the proposal in order to satisfy that PSC member.

    • If at least one -1 voting PSC member supplies some alternative criteria, the original author must rework the proposal and resubmit, and the voting process starts again from scratch.

    • If no -1 voters are able to supply alternative criteria, the proposal is accepted.

  7. In the event of an unsuccessful vote, the author may choose to rework and submit.

    A proposal may not be resubmitted after being rejected three times.

Snap Decisions

A GSIP proposal is NOT needed for:

  • an improvement that can go in a community module; or

  • a bug fix that doesn’t rework anything substantially

For minor decisions where feedback might be desired, consult the development list, or raise it in a video meeting (anyone not attending can follow up on the meeting minutes email). The GeoServer Project recognizes that it is run those doing the work, and wish to avoid high overhead for ‘getting things done’.

For these snap decisions that are not official GSIP proposals, everyone ‘available’ (those in the video meeting or who respond to an email within 4 days) are given the power to vote and decide an issue. The same voting procedure (+1,+0,-0,-1) is used, but any decision that receives a -1 from any party present (even a new user), should go to a GSIP.


Responsibilities of PSC members fall into the following categories:

  1. Operations

  2. Planning


Day to day project management. Duties include:

Mailing List Participation

PSC members are expected to be active on both user and developer email lists, subject to open-source mailing list etiquette of course.

It is a requirement that all PSC members maintain good public visibility with respect to activity and management of the project. This cannot happen without a good frequency of email on the mailing lists.


Our community is subject to both a responsible disclosure policy and a code of conduct; this is the responsibility of all partipants and is not limited to the PSC.*

Biweekly Video Meeting Attendance

PSC members are encouraged to attend one of biweekly Skype meetings. Of course this is not always possible due to various reasons. If known in advance that a member cannot attend a meeting it is polite to email the developer list in response to the meeting reminder. No reason need to be given for not attending the meeting.

Meetings are a chance to quickly discuss project activities, review difficult pull requests, and cut down on email.

Community Commitments

As an Open Source Geospatial Foundation project we have a number of committments:

  • Code of Conduct

  • OSGeo Officer

  • OSGeo Annual Report

  • OSGeo Budget


Long term project management. Duties include:

Guiding Major Development Efforts

PSC members are expected to help guide the major development efforts of the project. This may include deciding which development efforts should receive priority when different efforts are in conflict.

The PSC has the right to veto any proposed development efforts.

A major development effort which is intended to become part of the core of GeoServer can be proposed by any interested party, PSC, or non PSC. However, the effort must be approved by the PSC before it can begin.

Project Policies

The PSC is responsible for defining project policies and practiced. Examples include:

  • Development Practices

    • Code Reviews

    • Intellectual Property

    • Documentation Requirements

    • Commit Access

    • Testing Requirements

    • Branch Culture

  • Release Procedures

    • Frequency

    • Version numbering

    • Stable vs Maintenance vs R&D