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Document root elements

The core of the language consists of a set of data containers, or more formally elements (not to be confused with the chemical elements), the enumeration of which is ideally defined by a schema. In this example, the elements are , , , , , and . These have a clearly defined relationship to one another (illustrated above by indentation of the text). Thus the element is said to be the parent of a child element termed , and both are children of the top-level element , which can also be called the document root element. This hierarchy among elements is precisely defined and must carry no ambiguity. [Pg.91]

A more robust system would incorporate markup language information inside the XML documents for selection purposes. The name of a root element is a convenient selection criterion, but only if every markup language uses unique root elements. If there were only several languages around, it would not be a difficult problem, but given the diversity of the Internet, such uniqueness is impossible to achieve. [Pg.103]

The class ContentDescription is introduced, which is connected with the Information via the relation hasContent. ContentDescription acts as an extension point, where a qualified product data model suitable for describing the content of a Information can be integrated into the Document Model. Integration is realized by declaring the classes of the product data model to be subclasses of ContentDescription. For example, by defining the root element of OntoCAPE (cf. Subsect. 2.2.4) as a subclass of ContentDescription, as it is indicated in Fig. 2.10, all classes defined in OntoCAPE can be employed to characterize the content of some Information. If the content of documents lies in another domain than that of computer-aided process engineering covered by OntoCAPE, OntoCAPE can be replaced by a more appropriate product data model. [Pg.118]

Note that when specifying a schema for an XML column or document, one must also specify a single global element that must serve as the document root for each document instance. In the example above, schema temp. xsd has a global element Global 1 against which all document roots must validate. [Pg.172]

The guidance for tliis element covers responsibilities and authorities, determination of the significance of a quality (ESH/PSM) related problem, root cause investigation, cause-and-effect analysis, preventive actions and additional controls, and change documentation. For ESH/PSM, this element might be interpreted as covering both potential hazards as well as actual problems. [Pg.163]

The longitudinal fluxes that may arise from the preferential flow paths of water and solutes along large root channels are even less well documented than the radial fluxes of trace elements in the rhizosphere. It is well known that roots tend to colonize former biopores, as indicated in Section 4.2. As many of those macropores, especially vertical/subvertical biopores created by earthworms or root activity, are prone to preferential flow during re-saturation events, they may complicate our understanding of (1) the directions of trace elements and water fluxes, and ultimately, (2) the origin of the solutes circulating in the root environment. This process has received virtually no attention so far, however, possibly because of the practical difficulties associated with its quantitative assessment. [Pg.276]

Microsoft SQL Server, like Oracle, supports storing a collection of homogeneous XML documents in a relation column (Pal et al. 2006). Whereas instances in an XML-typed column or table in Oracle must conform to a specific schema with a specific global element as root, an XML-typed column in SQL Server validates against any schema in a collection of schemas and allows any global element as root. One specifies an XML Schema Collection in SQL server using a DDL statement CREATE XML SCHEMA COLLECTION [ . ] sql.identifier AS Expression... [Pg.174]

Root> The tree root, and represents the whole document, containing a set of elements corresponding either to tuples or to group of tuples. [Pg.562]

It is well documented that, selenate is taken up by plant roots from soil solution by a process of active transport (Brown and Shrift 1982). It competes with sulfur for uptake, both anions using a sulfate transporter in the root plasma membrane (Arvy 1993). Organic forms of Se, such as selenomethionine, are also taken up actively by plant roots. In contrast, transport of selenite does not appear to require the use of a sulfur transporter (Abrams et al. 1990). Subsequent translocation of Se within the plant is related to the form in which the element is supplied to the root. Se04 is more easily transported from the roots and much more is accumulated in the leaves than either SeOs" or organic selenium. Much of the SeOs is retained in the roots where it is rapidly converted into organic forms, particularly selenomethionine (Zayed et al. 1998). Distribution of Se in various tissues differs between accumulator and nonaccumulator plants. In the former, the Se is accumulated especially in young leaves, but later appears at higher levels in seeds than in other tissues, while, in nonaccumulators, such as cereals, levels in seeds and roots are usually the same as reviewed by Reilly (2(X)6). [Pg.262]


See other pages where Document root elements is mentioned: [Pg.123]    [Pg.102]    [Pg.8]    [Pg.275]    [Pg.276]    [Pg.285]    [Pg.287]    [Pg.288]    [Pg.290]    [Pg.297]    [Pg.527]    [Pg.111]    [Pg.81]    [Pg.166]    [Pg.203]    [Pg.139]    [Pg.202]   
See also in sourсe #XX -- [ Pg.91 ]




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