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Digital Information Technology Architecture: October 2009
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Digital Information Technology Architecture. Sunday, 25 October 2009. 41 PNG, JPG and GIF Graphics FORMATS. GIF is mostly used formats in the internet for images and animation. Because it uses LZW compression schemes (a lossless data compression technique) to store images and animation to have a small file size without significantly loosing quality. GIF supports up to 256 and better used in simple animation and small images like logo, icon etc than photographs because of its colour limitation. Graphics c...
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Digital Information Technology Architecture: Information Architecture
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Digital Information Technology Architecture. Wednesday, 30 December 2009. Information Architecture provides a user friendly platform in an information environment to meet users’ information needs (Francke, H. 2009) and deals with organisation, labelling and navigation schemes within an information system (Rosenfeld and Morville, 2002). The following organisation system structure is adapted from Rosenfeld and Morville (2002) and Francke, H, (2009). A structured navigation system able to answer;. Think of ...
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Digital Information Technology Architecture: Information Retrieval
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Digital Information Technology Architecture. Wednesday, 30 December 2009. Information retrieval process involves searching information broadly on the web according to users’ needs. It is completely different from data retrieval although both of them use database. It uses natural language for making query. Processes involved in IR are; indexing, searching and query modification. A number of searches execute one after another. 823 Cluster based retrieval:. Rijsbergen, C.J.V., undated). According to Rijsber...
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Digital Information Technology Architecture: November 2009
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Digital Information Technology Architecture. Tuesday, 3 November 2009. 51 eXtensible mark-up language. XML can be used to describe semantic structure but it has to be well-formed and valid. XML document must conform to a strict set of rules. XML document must conform to grammatical rules set out in the DTD file. Butterworth, R, 2009). DTD is a collection of XML declarations, a set of rules upon which the validity of XML document is checked. A DTD file saved as “examplelib.dtd”. The above XML document is.
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Digital Information Technology Architecture: Cascading Style Sheet
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Digital Information Technology Architecture. Wednesday, 30 December 2009. 61 Cascading style sheets. Style sheet is a styling instruction offers more efficient way of document presentation that separates the content of a document from its presentation so that information can be presented in different way to the different users. It is an easy and efficient way to maintain web pages and supported by W3C. When a number of styles applied to a part of a single document than a cascade occurs.
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Digital Information Technology Architecture: Client Side Programming
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Digital Information Technology Architecture. Wednesday, 30 December 2009. 91 Client side programming. 92 Examples of how java scripts can be used to provide personalized information according to details entered by users specified in coursework 3.9. The integer entered in the prompt will be extracted and then stored in the variable called result and redirect user to appropriate site they are interested. 93 Web URL for JavaScript’s application. Subscribe to: Post Comments (Atom). London, United Kingdom.
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Digital Information Technology Architecture: Database
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Digital Information Technology Architecture. Wednesday, 30 December 2009. 71 File system and database system. 72 Structured Query Language (SQL). SQL is based on relational algebra and designed to manage data in relational database. SQL is mostly used to do query to retrieved data form database but can also be used to update data, create and modification of schema and provide access control. 73 Relational database technology to retrieve data. Subscribe to: Post Comments (Atom). London, United Kingdom.
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Digital Information Technology Architecture: December 2009
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Digital Information Technology Architecture. Wednesday, 30 December 2009. Information Architecture provides a user friendly platform in an information environment to meet users’ information needs (Francke, H. 2009) and deals with organisation, labelling and navigation schemes within an information system (Rosenfeld and Morville, 2002). The following organisation system structure is adapted from Rosenfeld and Morville (2002) and Francke, H, (2009). A structured navigation system able to answer;. Think of ...
