November 2000
- Walking Philip Loguinov, Draymoor
- MUD-Dev digest, Vol 1 #231 - 4 msgs Dr. Cat
- MUD-Dev digest, Vol 1 #231 - 4 msgs J C Lawrence
- MUD-Dev digest, Vol 1 #231 - 4 msgs Koster, Raph
- Atomic functions Felix A. Croes
- Atomic functions Ben
- Atomic functions Christopher Allen
- Atomic functions Ben
- Atomic functions Felix A. Croes
- Atomic functions KevinL
- Atomic functions Felix A. Croes
- Atomic functions KevinL
- Atomic functions KevinL
- Mud Dev FAQ part II Marian Griffith
- Walking Robert Zubek
- Opinions (even harsh) on Castle Marrach by Skotos? Christopher Allen
- Articles & Columns at Skotos Christopher Allen
- skotos David Zimet
- skotos Christopher Allen
- "An essay on d00dism and the MMORPG" Koster, Raph
- "An essay on d00dism and the MMORPG" Marian Griffith
- "An essay on d00dism and the MMORPG" birgit.schulte@philips.com
- "An essay on d00dism and the MMORPG" Norman Short
- "An essay on d00dism and the MMORPG" Jeff Freeman
- "An essay on d00dism and the MMORPG" gmiller@classic-games.com
- "An essay on d00dism and the MMORPG" Travis Casey
- "An essay on d00dism and the MMORPG" Lars Duening
- "An essay on d00dism and the MMORPG" Travis Casey
- "An essay on d00dism and the MMORPG" Lars Duening
- "An essay on d00dism and the MMORPG" Travis Casey
- "An essay on d00dism and the MMORPG" Lars Duening
- "An essay on d00dism and the MMORPG" Travis Casey
- "An essay on d00dism and the MMORPG" John Buehler
- "An essay on d00dism and the MMORPG" Vincent Archer
- "An essay on d00dism and the MMORPG" John Buehler
- "An essay on d00dism and the MMORPG" Paul Schwanz - Enterprise Services
- "An essay on d00dism and the MMORPG" John Buehler
- "An essay on d00dism and the MMORPG" Vincent Archer
- "An essay on d00dism and the MMORPG" Peter
- "An essay on d00dism and the MMORPG" John Buehler
- "An essay on d00dism and the MMORPG" Vincent Archer
- "An essay on d00dism and the MMORPG" Travis Casey
- "An essay on d00dism and the MMORPG" KevinL
- "An essay on d00dism and the MMORPG" John Buehler
- "An essay on d00dism and the MMORPG" KevinL
- "An essay on d00dism and the MMORPG" John Buehler
- "An essay on d00dism and the MMORPG" Xuri
- "An essay on d00dism and the MMORPG" John Buehler
- "An essay on d00dism and the MMORPG" KevinL
- "An essay on d00dism and the MMORPG" Rhys
- "An essay on d00dism and the MMORPG" Justin Rogers
- "An essay on d00dism and the MMORPG" Ted Milker
- "An essay on d00dism and the MMORPG" Steve {Bloo} Daniels
- "An essay on d00dism and the MMORPG" Zak Jarvis
- "An essay on d00dism and the MMORPG" Patrick Dughi
- "An essay on d00dism and the MMORPG" Travis Casey
- "An essay on d00dism and the MMORPG" Madrona Tree
- "An essay on d00dism and the MMORPG" Hans-Henrik Staerfeldt
- "An essay on d00dism and the MMORPG" Madrona Tree
- "An essay on d00dism and the MMORPG" Michael Tresca
- "An essay on d00dism and the MMORPG" Jeff Freeman
- "An essay on d00dism and the MMORPG" Jon Lambert
- "An essay on d00dism and the MMORPG" Travis Casey
- "An essay on d00dism and the MMORPG" |Eric|
- "An essay on d00dism and the MMORPG" Miroslav Silovic
- "An essay on d00dism and the MMORPG" John Buehler
- "An essay on d00dism and the MMORPG" Corey Crawford
- "An essay on d00dism and the MMORPG" ghovs@ghovs.moo.ca
- "An essay on d00dism and the MMORPG" Corey Crawford
- "An essay on d00dism and the MMORPG" Marian Griffith
- "An essay on d00dism and the MMORPG" Travis Casey
- "An essay on d00dism and the MMORPG" Richard Tew
- "An essay on d00dism and the MMORPG" Chris Gray
- "An essay on d00dism and the MMORPG" Steve {Bloo} Daniels
- "An essay on d00dism and the MMORPG" Richard Tew
- "An essay on d00dism and the MMORPG" msew
- "An essay on d00dism and the MMORPG" John Buehler
- "An essay on d00dism and the MMORPG" the_logos@www.achaea.com
- "An essay on d00dism and the MMORPG" geoffrey@yorku.ca
- "An essay on d00dism and the MMORPG" John Buehler
- "An essay on d00dism and the MMORPG" the_logos@www.achaea.com
- "An essay on d00dism and the MMORPG" Geoffrey@yorku.ca
- "An essay on d00dism and the MMORPG" Vincent Archer
- "An essay on d00dism and the MMORPG" Jason Belhumeur
- "An essay on d00dism and the MMORPG" Val Trullinger
- "An essay on d00dism and the MMORPG" Lee Sheldon
- "An essay on d00dism and the MMORPG" Travis Casey
- "An essay on d00dism and the MMORPG" Robert Zubek
- "An essay on d00dism and the MMORPG" Eric Rhea
- "An essay on d00dism and the MMORPG" Wells, Thomas
- "An essay on d00dism and the MMORPG" Travis Casey
- "An essay on d00dism and the MMORPG" Richard Tew
- "An essay on d00dism and the MMORPG" Koster, Raph
- "Virtual" What? Dave Rickey
- Object Models Ben
- Object Models J C Lawrence
- Object Models Dmitri Zagidulin
- Object Models KevinL
- Object Models Tony Wooster
- Object Models david.l.smith@home.com
- Object Models KevinL
- Object Models Gavin Doughtie
- Object Models John Robert Arras
- Object Models KevinL
- Object Models Bruce
- Object Models Ben Chambers
- Object Models Bruce
- Object Models KevinL
- Object Models Gavin Doughtie
- Object Models KevinL
- Object Models Travis Casey
- Object Models John Buehler
- Object Models Travis Casey
- Object Models John Buehler
- Object Models Chris Gray
- Object Models John Buehler
- Object Models Chris Gray
- Object Models olag@ifi.uio.no
- Object Models Miroslav Silovic
- Object Models Joe Andrieu
- Object Models John Buehler
- Object Models Miroslav Silovic
- Object Models Miroslav Silovic
- Object Models John Buehler
- Object Models Miroslav Silovic
- Object Models KevinL
- Object Models John Buehler
- Object Models Miroslav Silovic
- Object Models John Buehler
- Object Models Miroslav Silovic
- Object Models Bruce
- Object Models John Buehler
- Object Models Bruce
- Object Models John Buehler
- Object Models Phillip Lenhardt
On Wed, Nov 29, 2000 at 03:57:19PM -0800, John Buehler wrote:
> In our component approach, the development manager liked to use the phrase
> "throw away the sources" for what to do when a component ships. He wanted
> components to be absolutely opaque. There's no need to see into a component
> for integration purposes because you integrate at the level of public
> interfaces (a runtime consideration), and there's no need to see into a
> component for debugging purposes because there are no bugs (you wouldn't
> believe the verification process).
Forgive me for being so blunt, but this is insane. I'll try to provide an
example of why I think so, and so as not to appear unduly negative, suggest
an alternative answer to components:
Suppose you have a component called Sorter that takes an array of
Integers and a pointer/reference (or whatever your language supports)
to another component called Comparer and returns a "sorted" array
of Integers. Comparer takes two Integers as arguments and returns
a Boolean: True if the first Integer argument is greater than or
equal to the second Integer argument and False otherwise.
So the contract as I've stated it above guarantees that the right types
get passed in and the right types get returned. But how do you specify
in the contract that whatever algorithm Sorter uses actually returns
an Integer array such that if you passed the Nth and Nth + 1 elements
of the array to Comparer, the Comparer will return True (ie the array
is sorted in descending order)? You can't just analyze the algorithm
used by Sorter because that could very well be a non-terminating or
_very_ long process. I suppose you _could_ have a post-condition of the
contract actually do the comparison of the Nth and Nth + 1 elements for
every pair of elements in the array, but that's horribly inefficient.
There's a whole class of languages--Haskell, SML, Clean, etc--that
treat programs as a series of functions calling other functions. That's
"function" in the mathematical sense: the exact same input _always_
results in the exact same output; not just type-sameness, but value-
sameness. And none of those languages try to make sweeping guarantees
that the results you get will be the ones you want, just that you will
get the _same_ results every time you provide the same input. And
components can't make that weaker guarantee, even though you claim
they can enforce even stronger guarantees. - Object Models John Buehler
- Object Models olag@ifi.uio.no
- Object Models Travis Casey
- Object Models Miroslav Silovic
- Object Models John Buehler
- Object Models msew
- Object Models Russ Lewis
- Object Models John Buehler
- Object Models Phillip Lenhardt
- Object Models Travis Nixon
- Object Models John Buehler
- Object Models msew
- Object Models Andy
- Object Models Christopher Allen
- Object Models Chris Gray
- Object Models Travis Casey
- Object Models Marc Bowden
- Object Models Miroslav Silovic
- Object Models John Buehler
- Object Models Miroslav Silovic
- Object Models John Buehler
- Object Models Bruce
- Object Models John Buehler
- ADMIN: Lost posts J C Lawrence
- Multiple Inheritance (was: Object Models) Bruce
- Fanfic (Or: Why we can't all get along) Brian 'Psychochild' Green
- Fanfic (Or: Why we can't all get along) John Buehler
- Participatory Content (was Opinions (even harsh) on Castle Marrach by Skotos?) Christopher Allen
- Object Models (OO 101) Gavin Doughtie
- Consistent Characters (Was Remote client connection) John W Pierce
- Consistent Characters (Was Remote client connection) Marian Griffith
- (no subject) John Buehler
- (no subject) Mordengaard
- (no subject) John Buehler
- (no subject) Marian Griffith
- (no subject) John Buehler
- (no subject) John Buehler
- (no subject) KevinL
- (no subject) John Buehler
- (no subject) Joe Andrieu
- (no subject) Bruce
- (no subject) John Buehler
- (no subject) KevinL
- (no subject) John Buehler
- (no subject) KevinL
- (no subject) Dan Merillat
- (no subject) John Buehler
- (no subject) Brian 'Psychochild' Green
- facist marketers / content controllers msew
- facist marketers / content controllers Dave Rickey
- And the lines blur between rl and games!!! msew
- "gossip" Josh Rollyson {dracus}
- Official announce of nevrax.org www site Vincent Archer
- Intersection of Fanfic & Participatory Content Christopher Allen
- A list of Content Creation Eric Rhea
- Refactoring (was Object Models) Gavin Doughtie
- PDA-esque devices used in gaming |Eric|
- Weather and Multiple Planets Greg Mitchell
- Weather and Multiple Planets rayzam
- Interesting EQ rant (very long quote) Brian 'Psychochild' Green
- Interesting EQ rant (very long quote) Vincent Archer
- Interesting EQ rant (very long quote) Lee Sheldon
- Interesting EQ rant (very long quote) Koster, Raph
- Interesting EQ rant (very long quote) rayzam
- Interesting EQ rant (very long quote) Travis Nixon
- Interesting EQ rant (very long quote) Matthew Mihaly
- Interesting EQ rant (very long quote) McQuaid, Brad
- Interesting EQ rant (very long quote) Travis Nixon
- Interesting EQ rant (very long quote) rayzam
- Interesting EQ rant (very long quote) Matthew Mihaly
- Interesting EQ rant (very long quote) Davian
- Interesting EQ rant (very long quote) Dave Rickey
- Interesting EQ rant (very long quote) Matthew Mihaly
- Interesting EQ rant (very long quote) Dave Rickey
- Interesting EQ rant (very long quote) Lee Sheldon
- Interesting EQ rant (very long quote) Lee Sheldon
- Interesting EQ rant (very long quote) McQuaid, Brad
- Interesting EQ rant (very long quote) Lee Sheldon
- Interesting EQ rant (very long quote) Madrona Tree
- Interesting EQ rant (very long quote) Lee Sheldon
- Interesting EQ rant (very long quote) msew
- Interesting EQ rant (very long quote) John Buehler
- Interesting EQ rant (very long quote) Phillip Lenhardt
- Interesting EQ rant (very long quote) John Buehler
- Interesting EQ rant (very long quote) Justin Hooper
- Interesting EQ rant (very long quote) John Buehler
- Interesting EQ rant (very long quote) Travis Nixon
- Interesting EQ rant (very long quote) John Buehler
- Interesting EQ rant (very long quote) Dave Rickey
- Interesting EQ rant (very long quote) John Buehler
- Interesting EQ rant (very long quote) J C Lawrence
- Interesting EQ rant (very long quote) John Buehler
- Interesting EQ rant (very long quote) Ananda Dawnsinger
- Interesting EQ rant (very long quote) John Buehler
- Interesting EQ rant (very long quote) Ananda Dawnsinger
- Interesting EQ rant (very long quote) John Buehler
- Interesting EQ rant (very long quote) the_logos@www.achaea.com
- Interesting EQ rant (very long quote) Marian Griffith
- Interesting EQ rant (very long quote) Tamzen Cannoy
- Interesting EQ rant (very long quote) Timothy Dang
- Interesting EQ rant (very long quote) John Buehler
- Interesting EQ rant (very long quote) the_logos@www.achaea.com
- Interesting EQ rant (very long quote) John Buehler
- Interesting EQ rant (very long quote) msew
- Interesting EQ rant (very long quote) Travis Nixon
- Interesting EQ rant (very long quote) Nathan F.Yospe
- Interesting EQ rant (very long quote) Phillip Lenhardt
- Interesting EQ rant (very long quote) Justin Hooper
- Interesting EQ rant (very long quote) John Buehler
- Interesting EQ rant (very long quote) the_logos@www.achaea.com
- Interesting EQ rant (very long quote) Travis Casey
- Interesting EQ rant (very long quote) Justin Hooper
- Interesting EQ rant (very long quote) Travis Casey
- Interesting EQ rant (very long quote) the_logos@www.achaea.com
- Interesting EQ rant (very long quote) John Buehler
- Interesting EQ rant (very long quote) the_logos@www.achaea.com
- Interesting EQ rant (very long quote) John Buehler
- Interesting EQ rant (very long quote) Madrona Tree
- Interesting EQ rant (very long quote) Jeff Freeman
- Interesting EQ rant (very long quote) rayzam
- Interesting EQ rant (very long quote) Jeff Freeman
- Interesting EQ rant (very long quote) the_logos@www.achaea.com
- Interesting EQ rant (very long quote) Koster, Raph
- Interesting EQ rant (very long quote) Jeff Freeman
- Interesting EQ rant (very long quote) Klyde Beattie
- Interesting EQ rant (very long quote) Travis Nixon
- Interesting EQ rant (very long quote) John Buehler
- Interesting EQ rant (very long quote) Hulbert, Leland
- Interesting EQ rant (very long quote) John Buehler
- Interesting EQ rant (very long quote) Vincent Archer
- Interesting EQ rant (very long quote) the_logos@www.achaea.com
- Interesting EQ rant (very long quote) Vincent Archer
- Interesting EQ rant (very long quote) the_logos@www.achaea.com
- Interesting EQ rant (very long quote) Jeff Freeman
- Interesting EQ rant (very long quote) the_logos@www.achaea.com
- Interesting EQ rant (very long quote) Madrona Tree
- Interesting EQ rant (very long quote) Daniel.Harman@barclayscapital.com
- Interesting EQ rant (very long quote) Madrona Tree
- Interesting EQ rant (very long quote) John Buehler
- Interesting EQ rant (very long quote) Justin Hooper
- Interesting EQ rant (very long quote) John Buehler
- Interesting EQ rant (very long quote) Willowreed@aol.com
- Interesting EQ rant (very long quote) Willowreed@aol.com
- Interesting EQ rant (very long quote) the_logos@www.achaea.com
- Interesting EQ rant (very long quote) J C Lawrence
- Interesting EQ rant (very long quote) the_logos@www.achaea.com
- Interesting EQ rant (very long quote) msew
- Interesting EQ rant (very long quote) Dave Rickey
- Interesting EQ rant (very long quote) J C Lawrence
- Interesting EQ rant (very long quote) J C Lawrence
- Interesting EQ rant (very long quote) Zak Jarvis
- Interesting EQ rant (very long quote) Hulbert, Leland
- Interesting EQ rant (very long quote) the_logos@www.achaea.com
- Interesting EQ rant (very long quote) Jeff Freeman
- Interesting EQ rant (very long quote) the_logos@www.achaea.com
- Interesting EQ rant (very long quote) Jeff Freeman
- Interesting EQ rant (very long quote) the_logos@www.achaea.com
- Interesting EQ rant (very long quote) J. Coleman
- Interesting EQ rant (very long quote) the_logos@www.achaea.com
- Interesting EQ rant (very long quote) Travis Nixon
- Interesting EQ rant (very long quote) msew
- Interesting EQ rant (very long quote) Chris Lloyd
- Interesting EQ rant (very long quote) msew
- Interesting EQ rant (very long quote) the_logos@www.achaea.com
- Interesting EQ rant (very long quote) Chris Lloyd
- Interesting EQ rant (very long quote) Travis Nixon
- Interesting EQ rant (very long quote) Marian Griffith
- Interesting EQ rant (very long quote) msew
- Interesting EQ rant (very long quote) Jon Lambert
- Interesting EQ rant (very long quote) Koster, Raph
- Interesting EQ rant (very long quote) the_logos@www.achaea.com
- Interesting EQ rant (very long quote) Chris Lloyd
- Interesting EQ rant (very long quote) John Buehler
- Interesting EQ rant (very long quote) the_logos@www.achaea.com
- Interesting EQ rant (very long quote) Daniel.Harman@barclayscapital.com
- Interesting EQ rant (very long quote) Dan Shiovitz
- Interesting EQ rant (very long quote) shren
- Interesting EQ rant (very long quote) Dave Rickey
- Interesting EQ rant (very long quote) the_logos@www.achaea.com
- Interesting EQ rant (very long quote) shren
- Interesting EQ rant (very long quote) the_logos@www.achaea.com
- Interesting EQ rant (very long quote) Travis Casey
- Interesting EQ rant (very long quote) the_logos@www.achaea.com
- Interesting EQ rant (very long quote) Travis Casey
- Interesting EQ rant (very long quote) Vincent Archer
- Interesting EQ rant (very long quote) twm139@its.to
- Interesting EQ rant (very long quote) Vincent Archer
- Interesting EQ rant (very long quote) Travis Nixon
- Interesting EQ rant (very long quote) Vincent Archer
- Interesting EQ rant (very long quote) Timothy Dang
- Interesting EQ rant (very long quote) Michael Tresca
- Interesting EQ rant (very long quote) Justin Hooper
- Interesting EQ rant (very long quote) Holly Sommer
- Interesting EQ rant (very long quote) Marian Griffith
- Interesting EQ rant (very long quote) msew
- Interesting EQ rant (very long quote) John Buehler
- Interesting EQ rant (very long quote) Travis Casey
- Interesting EQ rant (very long quote) Daniel.Harman@barclayscapital.com
- Interesting EQ rant (very long quote) Joe Andrieu
- Interesting EQ rant (very long quote) S. Patrick Gallaty
- Interesting EQ rant (very long quote) Daniel.Harman@barclayscapital.com
- Interesting EQ rant (very long quote) Brian 'Psychochild' Green
- Interesting EQ rant (very long quote) Zak Jarvis
- Interesting EQ rant (very long quote) John Vanderbeck
- Interesting EQ rant (very long quote) Matthew Mihaly
- Interesting EQ rant (very long quote) Vincent Archer
- Interesting EQ rant (very long quote) McQuaid, Brad
- Interesting EQ rant (very long quote) John Buehler
- Interesting EQ rant (very long quote) Brian 'Psychochild' Green
- Interesting EQ rant (very long quote) Vincent Archer
- Interesting EQ rant (very long quote) Richard Tew
- Interesting EQ rant (very long quote) Dave Rickey
- Interesting EQ rant (very long quote) J C Lawrence
- Interesting EQ rant (very long quote) John Buehler
- Interesting EQ rant (very long quote) Jon Lambert
- Dynamic Timelines Lord Ashon
- Dynamic Timelines |Eric|
- Dynamic Timelines Bruce
- Dynamic Timelines James Thomas
- Dynamic Timelines Travis Casey
- Neopets Matthew Mihaly
- Threads Ben Chambers
- Consistent Characters Jeremy Hovance
- Consistent Characters Travis Casey