# Example: NV

- ## NV (Network Variable) is an extension of the nsv shared variable interface in AOLserver:

  - A client (e.g., front end server) can request streaming updates from a backend server
  - Client variable interface remains the same

- ## NV is useful for several applications, e.g.:

  - Sport scores: Continuous updates, streamed incrementally
  - Movies Top 10: Recurring bulk-updates of aggregated data
  - Meta data: Occasional updates of data which must be consistent on all client, e.g., list of known cities

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