MOF14 — WG: Attribute accessors and mutators

Summary: 1) Should the describe() and modify() operation available be on instance and
class level interfaces? For class level attributes it is not necessarly
needed because they probably will not be read and modified very often in a
group.

2) The property set should be defined in a value-struct. Which attributes
should the instance level value-struct contain? class level and instance
level attributes. I would prefer only to have instance level attributes in
the instance level modify() and describe() operations because of (hopefully)
the separation of instance and class level interfaces (no inheritance
anymore!).

3) Should the value-struct also contain multi-valued attributes. I would
prefer, not to include multi-valued attributes in the value-struct because
of the modify() operation.

4) How about read-only attributes. If the same value-struct is used for
describe() and modify(), should the read-only attributes be included in the
value-struct and ignored in the modify() operation?

5) To define the value-struct as a NamedValue sequence with the values of
the type any (as available in the Reflective interface) is not optimal
because this operation is untyped and requires the use of the any type. The
value-struct should be typed.

6) In our work we have defined the value-struct, modify() and describe()
operations as model-specific operations (this is fully MOF-compliant). This
allows us to customize the value-struct as needed. However, because probably
everybody has the same requirements there should be a way in the MOF-spec to
defined such constructs in a standard way.