The internet has emerged as a dominating area of IT development. The ever-expanding applications within the global community that communicates, trades and exchanges information (seamlessly) has meant that the Internet and its associated technologies is a rapidly growing and changing area that requires in-depth knowledge as well as a wide range of skills. These web technologies have also been used to develop e-Commerce, intranet, extranet and social networking systems to meet the needs of modern businesses and associations.
Learners should already be familiar with website design and management, and will be able to apply their own web development skills to this unit. Learners will enjoy extending their web development skills by understanding the concepts of web-based applications using server-side technologies. This unit takes client-side web-development one step further by introducing server side application development. This unit focuses on server-side technologies and how server-side scripting can be used to create sophisticated web-based applications.
Learners will understand the concepts of web-based applications using one or more different server-side scripting languages, such as ASP, JSP and PHP. Many web-based systems also include database systems, which enables data to be processed dynamically. Learners will gain experience of developing web-enabled database systems, using SQL statements combined with server-side scripts to manage the process of information.
Learners will develop skills in specific techniques and also able to select when and where they are most appropriate, basing this decision on client and user needs. They will also ensure that their applications comply with the relevant legislation and guidelines.
To enable learners to understand the concepts of web applications and apply the skills to develop and test web applications using server-side technologies.
1. Understand the concepts of web application development
2. Be able to design web applications
3. Be able to implement web applications
4. Be able to test web applications.
Understand the concepts of web application development
Users: types eg expert, regular, occasional, novice, special needs; requirements, eg psychological, cultural, social and environmental, health and safety, education and work
Site analysis:purpose eg communication, real-time information, commercial, government,
education, business, entertainment, downloading/uploading, web storage; fit for purpose, eg meets
organisational and site objectives; planning, eg storyboarding, structure, hypermedia linkage, search
engine key words, graphical design, user interface, audio/video sources, animation, text design;
maintenance, eg plans, logs, disaster recovery, testing
Accessibility:features eg alternative text, resizable fonts, support for screen readers, adjustable fonts
Legislation: laws, guidelines and standards, eg Disability Discrimination Act, Data Protection Act, E-
Commerce Regulations Act, W3C validation, copyright and intellectual property rights
Functionality:functions, eg shopping cart, reserve order, manage user profile,content management,
Scripting languages: server-side eg ASP (Active Server Pages), ASP.NET, PHP (Hypertext Pre-
processor), JSP (Java Server Pages), Cold Fusion, Perl, Java Applet, Flash;
advantages eg faste processing time, data processing, data storage;
Security: security requirements, eg user accounts, account restrictions, procedures for granting and
Identification of need: nature of interactivity eg online transactions, static versus dynamic; client needs and user needs, eg image; level of security, eg user/administrator access; development timescales, support and maintenance contracts, costs, visibility on search engines; end user need eg appropriateness of graphics, complexity of site, delivery of content
Design tools: concept designing, eg mood boards, storyboarding; layout techniques eg frames, tables, block level containers (DIV), inline containers (SPAN); templates; colour schemes; screen designs, use case diagrams, pseudo code; other eg outline of content; database design, eg data flow diagrams, entity relationship diagrams
Database design: documenting the design; back end design, eg defining relationships, normalisation, naming conventions; front end design, eg user interface, security measures
Structure: layout of pages; navigation; format of content and cascading style sheets (CSS); page elements, eg headings, rules, frames, buttons, text and list boxes, hyperlinks/anchors, graphical images, clickable images/maps; interactive features, eg catalogue of products, shopping cart; images and animation
Content: proofed, correct and appropriate; reliability of information source; structured for purpose, eg prose, bullets, tables
Tools and techniques: navigation diagram eg linear, hierarchy or matrix; building interactivity tools, eg pseudo-code for client-server scripting; adding animation and audio/visual elements; ensuring compliance with W3C; meta-tagging; cascading style sheets
Server-side interaction: manage and process data, eg client, server; action events, action responses, login/logout Server-side scripting languages: ASP, JSP, PHP, Cold Fusion, Perl
Database connectivity: common methods of using/accessing databases on a web server eg SQL (Structured Query Language), MySQL, ODBC (Open Database Connectivity), JDBC (Java Database Connectivity), ADODB (ActiveX Data Objects).
Web-programming concepts: objects, eg response, request, application, session, server, error, file system, text stream, drive, file, folder, dictionary, ADO; components, eg email, file, file uploads, date/time; syntax, variables, procedures, forms, cookies, sessions, applications.
Review: functionality testing (user environments, links and navigation); content; check against user requirements; user acceptance; audit trail of changes.
Mechanisms: browser compatibility testing, platform testing, script-language testing; valid HTML, server-script and database-script code; checking functionality against requirements, check internal and external hyperlinks to other web pages and media content (web files, web documents, images), error detection, error messages, dry running.
Feedback: record feedback, eg surveys, questionnaire, interviews; analyze feedback; present results
Supportive documentation: test plan (test data, expected results, actual results); test results; programmer guidance; user guidance (instructions)
Testing by: types eg administrator, user, automated scripts.
Knowledge and Understanding:
To understand the website design concepts like, users, accessibility, site analysis, design and environment.
Ø To design an interactive website.
Ø Understanding about design tools.
Ø Understand the structure of Website, & content.
Ø Understand the development of website.
Ø Understand the tools and techniques used for development of website.
Ø Able to document the website implemented.
Ø Able to support the website.
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