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DataNucleus shall be standards driven, implementing all associated persistence specifications,
extending into whatever related areas the market demand requires. Initially such implementation
will be for java persistence specifications. Further on we will implement the Data Mining API.
DataNucleus will support persistence to RDBMS and db4o and LDAP datastores initially, moving
into other datastores in the future.
The work of the Project is organized into subprojects. New subprojects must be significant works
consistent with the mission of the DataNucleus Project, be recommended by the PMC, and confirmed by the
Board. Subprojects can be discontinued by decision of the Board.
When a new subproject is created, the PMC appoints a subproject lead to act as the technical
leader and names the initial set of Committers for the subproject. Thereafter the PMC may
appoint a new subproject lead from time to time as required, but the new subproject lead must
be confirmed by a majority of the other Committers of the subproject. Subproject leads
are accountable to the PMC for the success of their project.
The PMC may decide to divide subproject further into components. If a subproject is divided
into components, commit privileges are normally granted at the component level, and the
committers for a given component vote on issues specific to that component. Components are
established and discontinued by the PMC. When the PMC creates a component it appoints a
component lead to act as the technical leader and names the initial set of Committers for the
component. The component lead is designated as a committer for the subproject and represents
the component in discussions and votes pertaining to the subproject as a whole. Component
Committers do not participate in votes at the level of the subproject as a whole, unless they
are also the component lead.
The DataNucleus Project is managed by a small group known as the DataNucleus Project Management
Committee [DataNucleus PMC].
The DataNucleus Project is a meritocracy -- the more you contribute, and the higher the quality
of your contribution, the more you are allowed to do. However with this comes increased
responsibility. If you do not take on extra responsibilities then your opinion will have less
weight in the DataNucleus meritocracy. The DataNucleus Project allows everyone to demonstrate
their worth and adopt new responsibilities and have more influence over the development process.
Users are the people who use the products that the Project produces. People in this role aren't
contributing code, but they are using the products, reporting bugs, and making feature requests
and suggestions. Users are encouraged to participate through the user maillist(s), asking
questions, providing suggestions, and helping other users. Users are also encouraged to report
problem reports using the bug tracking system.
Users who contribute code or documentation become developers. Developers are the people who
contribute code, fixes, documentation, or other work that goes into the product. Developers are
also encouraged to participate in the user maillist(s), and should monitor the developer Forum
associated with their area of contribution. When appropriate, developers may also contribute to
development design discussions related to their area of contribution. Developers are expected
to be proactive in reporting problems in the bug tracking system.
Developers who give frequent and valuable contributions to a subproject, or component of a
subproject (in the case of large subprojects), can have their status promoted to that of a
"Committer" for that subproject or component respectively. A Committer has write access to the
source code repository for the associated subproject (or component), and gains voting
rights allowing them to affect the future of the subproject (or component).
Active participation in the user maillist and the appropriate developer Forum is a responsibility
of all Committers, and is critical to the success of the project. Committers are required to
monitor and contribute to the user maillist.
Committers are required to monitor the developer Forum associated with all subprojects and
components for which they have commit privileges. This is a condition of being granted commit
rights to the subproject or component. It is mandatory because committers must participate in
votes (which in some cases require a certain minimum number of votes) and must respond to the
Forum in a timely fashion in order to facilitate the smooth operation of the project. When a
Committer is granted commit rights they will be added to the appropriate Forum. A Committer must
not be unsubscribed from a developer Forum unless their associated commit privileges are also
removed.
Committers are required to track, participate in, and vote on, relevant discussions in their
associated subprojects and components. There are three voting responses: +1 (yes), -1 (no, or
veto), and 0 (abstain).
Committers are responsible for proactively reporting problems in the bug tracking system,
and annotating problem reports with status information, explanations, clarifications, or
requests for more information from the submitter. Committers are responsible for updating
problem reports when they have done work related to the problem.
The Core, DB4O, RDBMS and OLAP will have coordinated release plans, milestone dates, freeze cycles,
builds, and ship dates. These subprojects will be coordinated by a group consisting of the subproject
leads, the component leads from these subprojects, and the members of the PMC. This group will
be called the DataNucleus Project Architecture Team.
The infrastructure required to support the development process is the responsibility of the PMC.
Each subproject lead must produce a development plan for the release cycle, and the development
plan must be approved by the PMC and by a majority of Committers of the subproject.
Each subproject must identify, and make available on its web site, the requirements and
prioritizations it is working against in the current release cycle. In addition, each subproject
must post a release plan showing the date and content of the next major release, including any
major milestones, and must keep this plan up to date.
The Committers of a subproject or component decide which changes may be committed to the master code
base of a subproject or component respectively. Three +1 ('yes' votes) with no -1 ('no' votes or
vetoes) are needed to approve a code change. Vetoes must be followed by an explanation for the veto
within 24 hours or the veto becomes invalid. All votes are conducted via the developer Forum
associated with the subproject or component.
Special rules may be established for subprojects or components with fewer than three Committers.
For efficiency, some code changes from some contributors (e.g. feature additions, bug fixes) may be
approved in advance, or approved in principle based on an outline of the work, in which case they may
be committed first and changed as needed, with conflicts resolved by majority vote of the Committers
of the subproject or component, as applicable. More restrictive rules for releasing changes may be
established by the PMC near the end of release cycles or for maintenance streams.
The master copy of the code base must reside on the project web site where it is accessible to all
developers and committers. Committers must check their changes and new work into the master code base
as promptly as possible (subject to any check-in voting rules that may be in effect) in order to
foster collaboration among widely distributed groups and so that the latest work is always available
to everyone. The PMC is responsible for establishing a release engineering and build process to
ensure that builds can be reliably produced on a regular and frequent basis from the master code
base and made available for download from the project web site.
The PMC is responsible for establishing the level of testing appropriate for each subproject, and
approving the test plans.
All development technical discussions are conducted using the development Forums. If discussions are
held offline, then a summary must be posted to the Forum to keep the other committers informed.
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