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EAD  September 2004

EAD September 2004

Subject:

Re: daoloc attribute

From:

"Fox, Michael" <[log in to unmask]>

Reply-To:

Encoded Archival Description List <[log in to unmask]>

Date:

Mon, 20 Sep 2004 10:01:40 -0500

Content-Type:

text/plain

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text/plain (129 lines)

Mark, 
   Thank you for sharing this interesting document.  I have several comments in response to the useful issue you raise.

1.  While it is both true that XLink is the linking mechanism for XML and that it can be used for  simple and extended links, the truth is that the environment in which we are now working is actually a mixture of XML and HTML and that the linking capability we have is limited to the simple links now possible in HTML.  I am still waiting to see an all XML environment where XLink actually functions in a global way and extended, bi-directional links are possible.  

2.  If this is the case, the use of XLink syntax to generate simple, uni-directional HTML links is needlessly complex and unnecessary.  It is hardly necessary to generate the proper HTML output that would result from a transformation.  Theoretically interesting to be sure.  Am I missing something here?

3.  Your chart associates <extref> solely with the HTML <a> element but it might also need to generate an <img> element where the text in <extref> is used to produce a caption for an external image rather than the link text in an <a>.   The differentiation of these two possible outcomes, an HTML <a> or an HTML <img> in an HTML transformation, is the reason why one needs the embed and new values in the show attribute with <extptr>.  

Michael Fox







-----Original Message-----
From: Encoded Archival Description List [mailto:[log in to unmask]]On Behalf Of
Mark Carlson
Sent: Friday, September 17, 2004 8:03 PM
To: [log in to unmask]
Subject: Re: daoloc attribute


I don't believe this is true.  XLink forms the basis for all linking
elements in XML, both simple (extptr, etc.) and extended (daogrp, linkgrp,
etc.).  In the XLink specification, section 2.1, it states that "one of
the common uses of XLink is to create hyperlinks".  A standard <A>
hyperlink is called an "outbound" link in XLink and that type of link can
be created with a simple-type linking element or, as per section 5.2
states, using as extended link to create simple link functionality (see
example in this section "Simple Link Functionality Done with an Extended
Link").  But using an extended link in this way requires additional
elements since the "behavior" attributes are contained in the <arc>
element in EAD.  (Section 5).

A document I'm working on presents one interpretation for how this could
be implementated using today's tools (for simple outbound links, that
is).

I would be interested in comments.

http://staff.washington.edu/carlsonm/XLinkToEAD.pdf

Mark

  On Fri, 17 Sep 2004, Fox, Michael wrote:

> I have been intrigued by this thread with respect to the <daoloc> element.    It is my understanding that this element is applicable only as part of an implementation of bi-directional links within an XLink-enabled technology and I was unaware of any broadly based implementation of same.   If someone is using it, I would appreciate a pointer to the application as I've always wondered how this standard would play out in real life.
>
> Michael
> -----Original Message-----
> From: Encoded Archival Description List [mailto:[log in to unmask]]On Behalf Of Druscie Simpson
> Sent: Friday, September 17, 2004 1:13 PM
> To: [log in to unmask]
> Subject: Re: daoloc attributes
>
>
> Dietra,
>
> Ashley is working on this as well.  She received some code from Kathy Wisser, but, while it works just fine on Kathy's PC, it doesn't work on Ashley's!  Check with Ashley on Monday to see where she is on this.
>
> Druscie
> _____________________________________________________________
> Druscilla R. Simpson
> Head, Information Technology Branch
> N.C. State Archives
> (919) 807-7319 (voice)
> (919) 733-1354 (fax)
> [log in to unmask]
>
> Opinions expressed in this message may not represent the policy of this
> agency.  E-Mail to and from me, in connection with the transaction of public
> business, is subject to the North Carolina Public Records Law and may be
> disclosed to third parties.
>
> ----- Original Message -----
> From: Dietra Stanley <mailto:[log in to unmask]>
> To: [log in to unmask]
> Sent: Friday, September 17, 2004 12:11 PM
> Subject: Re: daoloc attributes
>
> Hey John can you please forward me his reply...I am having significant difficulty in adding dao's into my document also.
>
> Do you have a copy of what code i need to add to the style sheet and the dtd files in order for them to recognize i am inserting a dao into my xml.
>
> gee thanx for any help
>
> dietra lynn
> ----- Original Message -----
> From: Hyslop, John <mailto:[log in to unmask]>
> To: [log in to unmask]
> Sent: Friday, September 17, 2004 11:34 AM
> Subject: Re: daoloc attributes
>
> Thanks to Nick Mangine my confusion has been cleared up.
>
> John Hyslop
> Assistant Division Manager
> Long Island Division
> Queens Borough Public Library
> 89-11 Merrick Boulevard
> Jamaica, New York 11432
> (718)990-0770
>
> These opinions are my own and not those of the Queens Borough Public Library
>
> -----Original Message-----
> From: Hyslop, John [mailto:[log in to unmask]]
> Sent: Friday, September 17, 2004 10:17 AM
> To: [log in to unmask]
> Subject: daoloc attributes
>
> I'm a bit confused and a novice so bear with me.  In the EAD Application Guidelines Version 1.0, Figure 7.6c page 230 shows the daoloc element having the actuate and show attributes.  However the EAD DTD doesn't allow them and the Tag Library doesn't list them.  Why?
>
>
> John Hyslop
> Assistant Division Manager
> Long Island Division
> Queens Borough Public Library
> 89-11 Merrick Boulevard
> Jamaica, New York 11432
> (718)990-0770
>
> These opinions are my own and not those of the Queens Borough Public Library
>
>

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