Handling Change in WCF contracts.

The following is from the url

http://www.devx.com/dotnet/Article/42005/0/page/3

  1. Always use the Name and Namespace parameters on all contracts.
  2. Always use the Order parameter on data members.
  3. Implement the IExtensibleDataObject on all data contracts.
  4. Use namespaces for contract versioning.
  5. Always remember that new versions require new endpoints.
  6. When using strict schema validation, do not change contracts. Create new versions.
  7. When removing an operation from a service contract, create a new version.
  8. When changing the signature of an operation, create a new version.

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