- From: Tomas Vitvar <tomas.vitvar@deri.org>
- Date: Mon, 10 Jan 2005 09:35:22 -0000
- To: <www-ws@w3.org>
Hi all, > Just a thought: > > System theory uses the term "state" in a behaviourial sense. The state > represents the "results" of all previous interactions with > tha thing, with respect to how it will behave in a subsequent interaction. In system theory, this is called a process - a sequence of states. A set of all processes in a system determines system's behavior. Though, another view on state is that state is a set of active functions in a system. Tomas Vitvar DERI NUIG, Galway, Ireland > If a thing, which may be accessed thru a URI, has behaviour which > depends on its previous interactions, then the concept of state > comes into play. > > A print server has no relevant state for a print job, but it has state > which is relevant to the system admin who has to replace > paper and cartridges. Thus state is relevant to the particular > interaction which is being considered. > > Tom Rutt > Fujitsu > > Hao.He@thomson.com wrote: > > >Hi, Mark, > > > >So if a request contains a list of URIs and the server needs to deference > >all the URIs in order to process this request, would you consider this > >stateful? > > > >Hao > > > >-----Original Message----- > >From: Mark Baker [mailto:distobj@acm.org] > >Sent: Saturday, 8 January 2005 2:29 > >To: Robert Mark Bram > >Cc: www-ws@w3.org > >Subject: Re: The State FAQ > > > > > > > >On Sat, Jan 08, 2005 at 02:09:22AM +1100, Robert Mark Bram wrote: > > > > > >>Hi Mark, > >> > >>Well done on the FAQ! > >> > >> > > > >Thanks, Robert. > > > > > > > >>== > >>1.1 What does it mean for something to be stateful or stateless? > (4ZT) > >>In general it just means that the thing encapsulates state (or not, for > >>stateless). > >>== > >> > >>I believe the definition should include something describing what state > >>is. For example: > >> > >>In general it just means that the thing encapsulates state (or not, for > >>stateless), where state can be thought of as a set of data or attributes > >>or properties belonging to the stateful entity. > >> > >>It may seem obvious, but I think it is easy to confuse state as a set of > >>data with a behavioral state as expected in a state transition diagram > for > >> > >> > > > > > > > >>example. > >> > >> > > > >I originally had a "What is state" question there, but the best answer I > >could come up with was "data", so I removed it. I note that yours says > >much the same thing 8-)... though perhaps carries some redundancy with > >"belonging to the stateful entity"). > > > >But please, feel free to edit it yourself. That's why I put it on a > >Wiki! > > > >Mark. > > > > > > -- > ---------------------------------------------------- > Tom Rutt email: tom@coastin.com; trutt@us.fujitsu.com > Tel: +1 732 801 5744 Fax: +1 732 774 5133 > > >
Received on Monday, 10 January 2005 09:52:31 UTC