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Home > About PPDM: PPDM Way

The PPDM Way

This policy provides consistency in the Association's activities related to the development of the PPDM. It may also assist members in planning their commitments to model development projects, by explaining the process.

This has been reviewed by the PPDM's Board and others. It is not intended as a static or rigid policy. We welcome comments from the members.
 

Association Values

Member involvement
Voluntary investment is required at every stage of the model development process. The expertise of the participants is unique and essential. The pace of development is controlled by members' input of resources. Model development is impossible without the active involvement of members.

Pro-active members
Business requirements and modeling solutions (with consistent architecture) are determined by the members who chose to be active participants in the development process. They must consider themselves as representatives of the entire membership and make choices that will best meet the needs of the global industry.

Business driven requirements
The Model is only successful when it is implemented and thereby enables members to achieve benefits to their business. Members express their requirements through their elected Directors and through active involvement. The Board of Directors sets the overall strategy for Model development to meets these requirements.

Leverage
The power of the Association is in the contributions of the members. The Association controls only the resources provided through membership fees and special contributions. These are used to leverage the voluntary involvement of the members in the Model development process.

Democratic process
The Association's bylaws and policies provide for direct annual election of all Directors, one member/one vote, and proportional fees.

Public Model
Anyone may use the Model; that is what is meant by "public". Our goal is to make it widely available without restrictions of price or license fee. However, free distribution and technical support is provided only to our members. Non-members who benefit from the Model should consider themselves "free-loaders".
 

Development Principles

Consistent architecture
Every part of the Model must conform to the Association's document on Architectural Principles.

Guidance and coordination
The Modeling Committee is established by the Board and accountable through the Executive Director. It monitors the process of Model development, and defines the Association's technical methodology and standards.

Change management
All proposed changes are assessed on the value the change will bring, versus the cost of implementing it. This trade-off between enhancement and stability should be addressed by any group proposing to rework a portion of the Model.

Timing of development
No subject area can be developed without substantial input from the members, so the pace of model expansion cannot be pre-determined by the Board. The Association encourages initiatives from among our members, and actively promotes business-driven subject areas.

Association endorsement
The Board will support the member-driven subject workgroups by encouraging broad and effective member participation, and by allocating the Association's resources in support of these groups. Allocation criteria include: business need expressed by many members, expertise committed to the workgroup by members, interdependence with other model subject areas, realistic project goals and plans, and availability of resources.

Role of Association staff
The staff and/or contractors engaged by the Association facilitate the modeling workgroups which are endorsed by the Board. They also assess submissions for conformity to PPDM's architecture and compatibility with other parts of the Model, create and distribute the DDL schema and documentation, test the Model for compliance and integrity, process change requests, and provide technical support.

Version approval process
Any new version of the PPDM is subject to approval by the membership. The Board determines when and how the proposed version will be released to the members for testing and approval.

Independent initiatives
The Board will not interfere with a workgroup that may arise spontaneously among our members. However, such a group may wish to seek an endorsement before investing too much time and resources. The Association cannot commit to provide significant resources to an independent project.