[XML-DEV Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message]

RE: Categories of Web Service messages: data-oriented vs actio

• To: xml-dev@l...
• Subject: RE: Categories of Web Service messages: data-oriented vs action-oriented
• From: Sean McGrath <sean.mcgrath@p...>
• Date: Tue, 05 Feb 2002 13:02:13 +0000
• In-reply-to: <000d01c1ae40$80f75f80$887ba8c0@mitchum>
• References: <D7155AD41ECFD511AF4A00B0D0202CB51DFD15@MAILHOST>

[Bill de hÓra]

>Because at any given time code is being written to get 2 endpoints
>communicating, not n endpoints. The developers are in a hurry working
>under unrealistic deadlines and expectations. So, for any 2 endpoints
>and given enough developer stress, an RPC is the right thing (it gets
>the network out of the way quickly, so you can pretend you're writing
>procedural code in a single thread of execution). Even if you had 3 or 4
>endpoints, you can always decompose the comms into pairs (divide and
>conquer as anti-pattern). Then one day you wake up to find you have
>_lots_ of pairs making RPC calls and trying to reorder of repurpose some
>of them (or heaven forbid, their databases) without breaking something
>else somewhere else is extremely difficult; there's too many
>permutations and the network is suddenly not the sum of its parts
>anymore. You're out of control of the code.

Yup. Its point-to-point versus hub. point-to-point is faster
for setting up bilateral communications but the number of
interconnects is O(n-squared). Hubs require more up-front
work - message taxonomies, routing etc. but scale
O(n).

Sean

• References:
  • RE: Categories of Web Service messages: data-oriented vs action-oriented
    • From: Michael Brennan <Michael_Brennan@A...>
  • RE: Categories of Web Service messages: data-oriented vs action-oriented
    • From: Bill de hÓra <dehora@e...>

• Prev by Date: A heavier-weight proposal for character entity definition
• Next by Date: Re: Categories of Web Service messages: data-oriented v
• Previous by thread: RE: Categories of Web Service messages: data-oriented vs action-oriented
• Next by thread: Re: Categories of Web Service messages: data-oriented vs action-oriented
• Index(es):
  • Date
  • Thread