[XML-DEV Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message] RE: Attribute Usage
It's a pretty subjective concept, and there is no hard and fast rule of law. Generally speaking: 1. Attributes are metadata (information about information) and usually represent properties of information. They can't contain mixed content or child elements, and don't define structure in the document. 2. Elements are data and represent components of information. They can contain mixed content and child elements. Elements provide both content definition and structure to the document. An ID would be a good example of an attribute. It does not define content or structure, but does provide a unique identifier for an element that does. ======================= Douglas Rudder XML Analyst WoltersKluwer Health - Clinical Tools 77 West Port Plaza, Suite 450 Phone: 314-216-2227 e-mail: drudder@d... www.drugfacts.com ======================= -----Original Message----- From: Farid.Mahini@L... [mailto:Farid.Mahini@L...] Sent: Monday, March 14, 2005 3:01 PM To: xml-dev@l... Subject: Attribute Usage Hi, What is the purpose of element attribute? And is there a usage rule-of-thumb for element attribute (attribute vs. child element) ? Thanx, -Farid From E-mail Administrator ATTENTION PLEASE: Do you have our new e-mail addresses? The current L-3 standard is First.Last @ L-3com.com E-mail addressed to First.Last @ te.L-3com.com will no longer be delivered. Please update your address book using the "From" address on this email. ----------------------------------------------------------------- The xml-dev list is sponsored by XML.org <http://www.xml.org>, an initiative of OASIS <http://www.oasis-open.org> The list archives are at http://lists.xml.org/archives/xml-dev/ To subscribe or unsubscribe from this list use the subscription manager: <http://www.oasis-open.org/mlmanage/index.php>
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