There are mismatches in the hierarchical structure of Error Type
classes and Error Information classes, which shall correspond to each
other. One solution will be to:

• add ET_ErrorDistribution, derived from 'RoLo Error Type'
• make ET_Gaussian, ET_UniformGaussian, ET_ParticleSet and
  ET_MixtureModel to be derived from ET_ErrorDistribution

Occasionally, there are situation where a set of CRSs needs to be defined as acceptable for a specific Interface::Stream, such as accepting a set of IDs based on several CRSs for a single stream. This cannot be realized in the current specification

Data formats that each Interface::Stream can handle are defined in Interface::StreamAbility. dataFormat. However, in certain cases, data formats may be automatically handled by middlewares. We shall reconsider to what extent data formats are treated as part of the RLS specification. Also, definition of each data format is currently not described. As other parts, such as coordinate reference system definitions, specification for describing data format definitions shall be defined.

A.1 paragraph 3 says "Hereafter, the target namespace of the given XML schemas is assumed to be “http://www.omg.org/rls/1.1.” Also, the prefix “rls” indicates the same namespace."

However, in fact this URL should be "http://www.omg.org/spec/RLS/1.1".

This needs to be corrected in the text of the specification (3 places, all on page 79), and in the Schema file dtc/2011-05-13, linked from http://www.omg.org/spec/RLS/1.1/. A corrected version of this file is available as dtc/12-05-01.