What are data structures?
Data structures are the way we are able to store and retrieve data. Any data structure is designed to organize data to suit a specific purpose so that it can be accessed and worked within appropriate ways.
What is the true worth of data structures in software development?
Data structures are a critical part of software development, and since the data is most crucial entity in computer science, the true worth of data structures is clear. The points that has been mentioned in the article are very informative and suiting.
Why are graph data structures so popular?
These days, graph data structures are becoming popular because they represent information that can't be represented hierarchically, such as in a tree form. Graph data structures are arbitrary relationships that don't have a parent-child ancestry relationship with each other.
What programming language should you learn first?
A Guide for Beginners As an aspiring software engineer, you need to learn programming languages like JavaScript, Ruby, or Python. But what else can you learn to stand out from the crowd and land a job?
What is the definition of data?
a representation of basic facts and observations about people , processes, measurements, and conditions. Data. Any pieces of information acquired through observation or experimentation. Data management. Refers to the definition and structure of data elements and the creation, storage, and transmission of data elements.
What is a single database?
A single database that makes it possible to access data that exists in multiple databases through one single query and reporting interface. Data mining. the process of extracting from a database or data warehouse information stored in discrete, structured data format-that is, data that has a specific value.
What is a report or list from a database?
A report or list from a database that provides guidance, indication, or other references to the data contained in the database, serves as a guide or indicator to locate something within a database or other systems storing data.
What are the components of data strategy?
The components of data strategy are: Data standardization and integration. This concept focuses on how the data is being entered into the system, where the data is going within the system, where the same data might exist in multiple areas, and how it is being integrated into other applications. Data quality.
What is data governance?
Data governance. The enterprise authority that ensures control and accountability for enterprise data through the establishment of decision rights and data policies and standards that are implemented and monitored through a formal structure of assigned roles, responsibilities, and accountabilities.
What is a demographic guide?
A guide to locating specific demographic information about a patient such as the patient name, health record number, DOB, gender, and dates of service.
What is data element?
A data element is a single or individual fact that represents the smallest unique subset of larger data.
Overview
The main purpose of XML is serialization, i.e. storing, transmitting, and reconstructing arbitrary data. For two disparate systems to exchange information, they need to agree upon a file format. XML standardizes this process. XML is analogous to a lingua franca for representing information.: 1 As a markup languag…
Applications
- XML has come into common use for the interchange of data over the Internet. Hundreds of document formats using XML syntax have been developed, including RSS, Atom, Office Open XML, OpenDocument, SVG, and XHTML. XML has also provides the base language for communication protocols such as SOAP and XMPP. It is the message exchange format for the …
Key Terminology
- The material in this section is based on the XML Specification. This is not an exhaustive list of all the constructs that appear in XML; it provides an introduction to the key constructs most often encountered in day-to-day use. Character 1. An XML document is a string of characters. Almost every legal Unicodecharacter may appear in an XML document. Processor and application 1. Th…
Characters and Escaping
- XML documents consist entirely of characters from the Unicode repertoire. Except for a small number of specifically excluded control characters, any character defined by Unicode may appear within the content of an XML document. XML includes facilities for identifying the encodingof the Unicode characters that make up the document, and for expressing characters that, for one reas…
Syntactical Correctness and Error-Handling
- The XML specification defines an XML document as a well-formedtext, meaning that it satisfies a list of syntax rules provided in the specification. Some key points in the fairly lengthy list include: 1. The document contains only properly encoded legal Unicode characters. 2. None of the special syntax characters such as < and &appear except when performing their markup-delineation role…
Schemas and Validation
- In addition to being well-formed, an XML document may be valid. This means that it contains a reference to a Document Type Definition(DTD), and that its elements and attributes are declared in that DTD and follow the grammatical rules for them that the DTD specifies. XML processors are classified as validating or non-validatingdepending on whether or not they check XML document…
Related Specifications
- A cluster of specifications closely related to XML have been developed, starting soon after the initial publication of XML 1.0. It is frequently the case that the term "XML" is used to refer to XML together with one or more of these other technologies that have come to be seen as part of the XML core. 1. XML namespaces enable the same document to contain XML elements and attribu…
Programming Interfaces
- The design goals of XML include, "It shall be easy to write programs which process XML documents." Despite this, the XML specification contains almost no information about how programmers might go about doing such processing. The XML Infoset specification provides a vocabulary to refer to the constructs within an XML document, but does not provide any guidanc…
History
- XML is an application profileof SGML (ISO 8879). The versatility of SGML for dynamic information display was understood by early digital media publishers in the late 1980s prior to the rise of the Internet. By the mid-1990s some practitioners of SGML had gained experience with the then-new World Wide Web, and believed that SGML offered solutions to some of the problems the Web w…
Versions
- 1.0 and 1.1
The first (XML 1.0) was initially defined in 1998. It has undergone minor revisions since then, without being given a new version number, and is currently in its fifth edition, as published on November 26, 2008. It is widely implemented and still recommended for general use. The secon… - 2.0
There has been discussion of an XML 2.0, although no organization has announced plans for work on such a project. XML-SW (SW for skunkworks), which one of the original developers of XML has written, contains some proposals for what an XML 2.0 might look like, including elimina…
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