Introduction Peter Dolog dolog [at] cs [dot] aau [dot] dk Intelligent Web and Information Systems September 9, 2010

Web Aplications Engineering For this course: -is a software applications engineering for the web platforms with specifics given by the web environment -Specifics (from the book): -Higher accessibility of distributed information and services -Document-centric hypertext interface -Variable technologies for data management -Variable presentation technologies and engines -Architecture complexity 2 Peter Dolog, WE, Introduction

Goal of the course To guide you through the specifics in processes, requirements, design, implementation, customization, quality evaluation, … beyond your project To give you choices you can decide about To help with choices in your semester project design 3 Peter Dolog, WE, Introduction

Schedule 4 Peter Dolog, WE, Introduction

This Lecture Introduction: done Applications (cca 30min) -> to inspire you beyond what you selected Technologies overview (cca 30min) just in my words and only now, you have the whole course on it -> Internet Technologies Processes (30 min) -> in relation to SOE last semester 5 Peter Dolog, WE, Introduction

Applications 6 Peter Dolog, WE, Introduction

Types of Applications Homepages With client side scripting With various presentation options Interactive presentations With multimedia objects Data Intensive Social Workgroup Internet of things 7 Peter Dolog, WE, Introduction

Homepages 8 Peter Dolog, WE, Introduction

With Client Side Scripting 9 Peter Dolog, WE, Introduction

With various presentation options 10 Peter Dolog, WE, Introduction

Interactive Presentations 11 Peter Dolog, WE, Introduction

With Multimedia Objects 12 Peter Dolog, WE, Introduction

Data Intesive 13 Peter Dolog, WE, Introduction

Social 14 Peter Dolog, WE, Introduction

Workgroup 15 Peter Dolog, WE, Introduction

Service Oriented 16 Peter Dolog, WE, Introduction

Internet of Things 17 Peter Dolog, WE, Introduction

The Web Engineering Scenario 18 Peter Dolog, WE, Introduction © Springer

Technology Evolution 19 Peter Dolog, WE, Introduction

HTTP 20 Peter Dolog, WE, Introduction © Springer

HTML 21 Peter Dolog, WE, Introduction © Springer

XML 22 Peter Dolog, WE, Introduction © Springer

DTD 23 Peter Dolog, WE, Introduction © Springer

XML Schema 24 Peter Dolog, WE, Introduction © Springer

Namespaces 25 Peter Dolog, WE, Introduction © Springer

FORMS and Java Script 26 Peter Dolog, WE, Introduction © Springer

Server Side Scripting 27 Peter Dolog, WE, Introduction © Springer

Forms and Calling Server Side 28 Peter Dolog, WE, Introduction © Springer

Server Side Applications and Frameworks 29 Peter Dolog, WE, Introduction © Springer

Servlets as one example of server side extension code 30 Peter Dolog, WE, Introduction © Springer

Generated Page through a servlet 31 Peter Dolog, WE, Introduction © Springer

Servlets: how does it work 32 Peter Dolog, WE, Introduction © Springer

JSP: Java Servlets 33 Peter Dolog, WE, Introduction © Springer

JSP typical content 34 Peter Dolog, WE, Introduction © Springer

JSP Example 35 Peter Dolog, WE, Introduction © Springer

Application Server Architecture 36 Peter Dolog, WE, Introduction © Springer

Alternatives 37 Peter Dolog, WE, Introduction © Springer

Web Services 38 Peter Dolog, WE, Introduction © Springer

Service Oriented Architecture 39 Peter Dolog, WE, Introduction © Springer

Usually for Integration of Legacy Enterprise Systems 40 Peter Dolog, WE, Introduction

New Directions RESTful web services Use of HTTP protocol Use of URIs to address operations Stateless web services State Encoded in URI Data through HTTP – JSON or XML For example at iGoogle and used with AJAX 41 Peter Dolog, WE, Introduction

Processes 42 Peter Dolog, WE, Introduction

Spiral Model 43 Peter Dolog, WE, Introduction © Springer

Unified Process 44 Peter Dolog, WE, Introduction © Springer

45 Peter Dolog, SOE, SCRUM Scrum Lifecycle (SOE last semester)

46 Peter Dolog, SOE, SCRUM SCRUM Practices (SOE Last Semester) Product Backlog Sprint Sprint Planning Meeting Sprint Backlog Roles - Product Owner, Scrum Master, Scrum Team Daily Scrum Meeting Sprint Review Meeting

Web Engineering Process from the Book 47 Peter Dolog, WE, Introduction © Springer

Process on the Time Scale 48 Peter Dolog, WE, Introduction © Springer Similar to UP, isnt’ it?

WebML Example 49 Peter Dolog, WE, Introduction © Springer

WSDM Example 50 Peter Dolog, WE, Introduction © Springer

OOHDM Example 51 Peter Dolog, WE, Introduction © Springer