附錄
A. 詞彙表
下列的術語是以不同的角度來看字面的意義及精確的意義。概括的定義在這裡只是指導性的,並非正式的。當然文件中會出現更精確的定義。
- 弧
- 以圖形的方式,這是表示屬性,; specifically the edges in a directed labeled graph.
- 屬性
- 一種賓語的特定,在第 6 節中,這個術語參考一個特定的 XML 語法結構,名稱="value" 做為
XML 標籤的一部份。
- 元素
- 用在這裡,這個術語參考一個特定的 XML 語法結構,像是 XML 開始標籤及結束標籤的資料。
- Literal
- The most primitive value type represented in RDF, typically a string
of characters. The content of a literal is not interpreted by RDF itself
and may contain additional XML markup. Literals are distinguished from Resources
in that the RDF model does not permit literals to be the subject of a statement.
- Node
- A representation of a resource or a literal in a graph form; specifically,
a vertex in a directed labeled graph.
- Property
- A specific attribute with defined meaning that may be used to describe
other resources. A property plus the value of that property for a specific
resource is a statement about that resource. A property may define its permitted values as well as the
types of resources that may be described with this property.
- Resource
- An abstract object that represents either a physical object such
as a person or a book or a conceptual object such as a color or the class
of things that have colors. Web pages are usually considered to be physical
objects, but the distinction between physical and conceptual or abstract
objects is not important to RDF. A resource can also be a component of a
larger object; for example, a resource can represent a specific person's
left hand or a specific paragraph out of a document. As used in this specification,
the term resource refers to the whole of an object if the URI does not contain
a fragment (anchor) id or to the specific subunit named by the fragment or
anchor id.
- Statement
- An expression following a specified grammar that names a specific
resource, a specific property (attribute), and gives the value of that property
for that resource. More specifically here, an RDF statement is a statement using the RDF/XML grammar specified in this document.
- Triple
- A representation of a statement used by RDF, consisting of just
the property, the resource identifier, and the property value in that order.