17. A computer system comprising: one or more computer-readable storage media having stored thereon computer-executable instructions; one or more processors that, when executing the executable instructions, causes the computing system to have an architecture that dynamically adapts metadata for use with a native data encoding, by performing the following acts: instantiating a metadata reader that accesses one or more portions of metadata in a file containing an object model description of an object model, the metadata comprising metadata represented in an encoding that is expected by a metadata reader configured to read native metadata; the metadata reader determining that at least some of the one or more portions of the accessed metadata are encoded in a non-native encoding; the metadata reader determining one or more metadata modifications required to transform the non-native encoding into native encoding for the at least some of the one or more portions of the accessed metadata; and adapting the accessed portions of metadata from non-native encoding to native encoding according to the determined one or more modifications, such that the native and non-native encodings of the accessed portions of the metadata are contained in the file containing the object model descriptions for the object model, and such that the object model is readable by a native runtime.
17. A computer system comprising: one or more computer-readable storage media having stored thereon computer-executable instructions; one or more processors that, when executing the executable instructions, causes the computing system to have an architecture that dynamically adapts metadata for use with a native data encoding, by performing the following acts: instantiating a metadata reader that accesses one or more portions of metadata in a file containing an object model description of an object model, the metadata comprising metadata represented in an encoding that is expected by a metadata reader configured to read native metadata; the metadata reader determining that at least some of the one or more portions of the accessed metadata are encoded in a non-native encoding; the metadata reader determining one or more metadata modifications required to transform the non-native encoding into native encoding for the at least some of the one or more portions of the accessed metadata; and adapting the accessed portions of metadata from non-native encoding to native encoding according to the determined one or more modifications, such that the native and non-native encodings of the accessed portions of the metadata are contained in the file containing the object model descriptions for the object model, and such that the object model is readable by a native runtime. 20. The computer system of claim 17 , wherein adapting the accessed portions of metadata from non-native encoding to native encoding occurs at a metadata importing-reading level in order to prevent at least one subsequent adaptation at a runtime level.