Borders Business Programme IT and Marketing Functions of Web-based Systems Russell Taylor Lecturer in Computing Borders Business Programme

Course Content Functions of Web-based Systems Keeping Data Secure on the Web Creating Web Pages Searching & Extracting Data Information Formats E-commerce Applications / E-Commerce Implementation Issues The Design Process

Analysis – Capturing User / Market Preferences Design – Interpretation of User Preferences Implementation – Developing Prototypes Testing Evaluation – Possible Reiteration of Prototyping Process Maintenance – Ensuring Continued Functionality

Analysis Analysis – Capturing User / Market Preferences Analysis

Requirements Analysis Functional Specification

Design  Interpretation of User / Market Requirements  Product: System Specification

Implementation  The Coding Process The Coding Process  Rapid Application Development Rapid Application Development  Creation of Prototype(s)‏ Alpha, Beta,......Release Candidate Hotfixes, Service Packs, etc.

Testing  Forms of Testing Black Box White Box Grey Box Acceptance Testing Non-Functional Software Testing

Evaluation  “Evaluation is systematic determination of merit, worth, and significance of something or someone using criteria against a set of standards.”  “Does the Software Meet Its Defined Specification?”

Maintenance  ISO Standard - ISO/IEC Applies  Keeping the Software Working To Specification whilst: Under attack from Hackers/Malware/Viruses Utilities like Registry Cleaners, Anti-Virus, Anti- Adware applications Inconsistent User Behaviour!

Maintenance  Scale of Maintenance Hot Fixes  (Bug-fixes or System / Application Vulnerabilities)‏ Service Packs  “Bundled” Hot Fixes and System Enhancements / New Applications New Releases  System or Application Replacement