Some may even be mutually exclusive. The goal is not to solve the final problem, but rather determine all of the many requirements which need to be considered when designing X3D. Mission goals for X3D need to be clearly articulated to define the primary objectives of VRML Consortium members. Community goals and market needs must also be considered. Mission goals are intended to provide guidance on expected outcomes for X3D. They will also be used to help resolve conflicting technical requirements. Backwards compatibility with the VRML 97 specification is an important consideration that the final design needs to address in detail.
Profiles are another crucial consideration.
Requirements generated by working groups will be a major consideration in the design of X3D. WG specifications approved through the existing WG Process are subject to the same backward compatibility requirements as the base VRML97 specification. The design team reserves the right to modify or subset such specifications to ensure design consistency. Because not all working group outputs may be appropriate for X3D, the design team might also reject or request specific modifications to any such submissions. Subsequent edits are performed by the Design Team. All technical suggestions will be considered.