Introduction

Web-Based SW Engineering

SW Production and Evolution:

Requirements Engineering

Analysis

Design

Implementation

Testing

Operation & Maintenance

Note: Analysis and Design methods can useUnified Modeling Language (UML) - the software standard of Object Management Group (OMG), and Web-extended Object-Process Methodology (OPM/Web).

Most Common Project Failing/Challenge

Misunderstanding problems....results in wrong requirements
- Standis Group CHAOS reports document this cause of most failures for web
Frequent Requirement Changes

Problems with Web Engineering Requirements

requirements change
not obvious
difficult to express
inter-related to one another
involve multiple parties
have different level of detail
not equally easy to meet
difficult to gather

Understand the Problem

Feasibility Study
Requirements Capture and Analysis
- establish the services the web application must provide
- list constraints under which web application must operate
Requirements Definition
- System from user point of view