URLs: Mean time of survival?

[Robert Terry]

Hi,

Been at a new MOREplus site so the response may be weighted.  First, I 
think you are writing a good empirical data paper, these are needed.  
Secondly, the generic MOREplus Accces_Of_Metadata and Extraction_Reports 
statistics are are publicable available (with appropriate request) from 
our Public Domain Software Library in Cranberry Square.  I also think 
that our govermental and commercial sites may be interested.  If you 
want, this will be forwarded to them.  BTW, I have included entire list 
in order to provoke such studies as stated and too selvelessly promote 
the best library tool, MOREplus. 

BTW - as a small business in WV, my President rmd at rbse.mountain.net, may 
be open to giving away technology to research scientist's works.  Which 
finalizes my long term conflict with the Physical Libray and our work.  
We are open to helping prototypes, along with our Partner, Oracle, to 
creating a database domain-specific, form typing, and HTML Standard code 
generation, as a tool.  Essentially offering a DBMS between Web/Database 
layer for User/Administrator (synonym: Administrator = Librarian). Given
software-reuse Customer-Driven Requirements.  We have and offer at 2+
URLs of a form for the same.  Emails to individuals assosciated with MNet
with same from sites and contacts are entered internally from team members. 

MNet SE_Team/Small_Business-Other_Teams

On Mon, 28 Jul 1997, Heinrich C. Kuhn wrote:

> Dear Web4Lib-ers,
> 
>    in a paper I'm writing I'll have to add a line con-
> cerning the tendency of URLs to change and to become
> obsolete, the tendency of electronic documents to
> wander from one URL to annother and their tendency to
> vanish. Experience seems to show, that the chances that
> a certain document will change its location or become
> unavailable are to some degree connected to the type
> of the document (e.g. announcements for conferences are
> on the mean less longliving than are collections of
> conference papers) and to the status of the persons
> who produced the documents (e.g. students' homepages 
> being less likely to survive for 2 years than libraries'
> homepages [:-)] ), and perhaps even to the subject of
> the document.
> 
>    Does anyone know about any statistical information
> on the "mean time of survival" of URLs and electronic
> documents on the web in relation to a) type of ressource,
> b) status of author, c) subject?
> 
> Thanks a lot for any answer! (Proper acknowledgements 
> will of course be made ...).
> 
> TIA
> 
> Heinrich C. Kuhn
> +---------------------------------------------------------
> !   Dr. Heinrich C. Kuhn   (coordinator libraries &c.)
> !   Max-Planck-Gesellschaft / Generalverwaltung VIIIb3
> !   Postfach 10 10 62 /  D-80084 Muenchen
> !   T: +49-89-2108 1563 / F: +49-89-2108 1565
> !   eMail: hck at ipp-garching.mpg.de, kuhn at mpg-gv.mpg.de
>