Borders Business ProgrammeIT and Marketing

Functions of Web-based Systems

Russell TaylorLecturer 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

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

Design Interpretation of User / Market

Requirements Product: System Specification

Implementation

Implementation The Coding Process Rapid Application Development Creation of Prototype(s)

Alpha, Beta, ......Release CandidateHotfixes, Service Packs, etc.

Testing

Testing

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

Evaluation

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

Maintenance

ISO Standard - ISO/IEC 14764 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

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