Rational Unified Process Fundamentals Module 7 Process for

Objectives: Process for e-Business Development w Understand the use of e-Business applications to implement

Definition: e-Business Building systems (business tools) that automate business processes Rational Unified Process Fundamentals,

Generations of e-Business systems • Use the web to publish information Rational Unified Process

Categories of e-Business Development w Customer to business (C 2 B) w Business to

Characteristics of e-Business Development w Externally imposed rules and regulations, often of high complexity

Contrast with Traditional Development w More emphasis on business modeling w More emphasis on

The Role of Enabling Technologies in e-Business Changed Business Practices Technological Advances Rational Unified

RUP Content for e-Business Development w Roadmap: Developing e-Business Solutions § Extends the process

Process Variation Based on Phases Roadmap: Developing e-Business Solutions Rational Unified Process Fundamentals, v.

E-business Process Variation: Phases èBusiness Modeling w Requirements w Analysis & Design w Implementation

Process Variation in Business Modeling w Compared to system modeling. . . § Increased

Six Scenarios for Business Modeling (review) w Organization chart w Domain modeling w One

Business Processes? Branch office Credit department Loan committee New loan: from Loan application to

The Fundamental Business Goal? Perceived Value The Company Business process A Business process B

Example Business Use-Case Model Business actor represents a role played in relation to the

E-business Process Variation: Phases w Business Modeling èRequirements w Analysis & Design w Implementation

Process Variation in Requirements w Rely on the business assessment and organization description from

Business Model Input to Requirements Rational Unified Process Fundamentals, v. 2000. 02. 10 Copyright

User-Centered Design w Business success depends on accommodating users § Varying legislation around the

Model the User Interface w Focus on user interface usability w Create a storyboard

Multiple Dimensions to User-Centered Design Rational Unified Process Fundamentals, v. 2000. 02. 10 Copyright

Concept Overlap for Functional Requirements Rational Unified Process Fundamentals, v. 2000. 02. 10 Copyright

E-business Process Variation: Phases w Business Modeling w Requirements èAnalysis & Design w Implementation

Process Variation in Analysis & Design w Web architecture is well-defined. w Focus on

Business Model Input to Analysis and Design Rational Unified Process Fundamentals, v. 2000. 02.

Using UML for Web Application Architectures w UML designed to allow formal extensions §

Three Common Web Architecture Patterns w Thin web client § Minimal client configuration §

E-business Process Variation: Phases w Business Modeling w Requirements w Analysis & Design èImplementation

Process Variation in Implementation w Architectural prototypes w Component implementation § browser environment §

E-business Process Variation: Phases w Business Modeling w Requirements w Analysis & Design w

Process Variation in Test w Test for a scalable and Reliable Architecture § Benchmark

Process Variation in Environment w Develop user-interface guidelines § e. g. ‘Design Brief’ w

Summary: Process for e-Business Development w What is an “e-Business”? w How is e-Business

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Rational Unified Process Fundamentals Module 7: Process for e-Business Development

Objectives: Process for e-Business Development w Understand the use of e-Business applications to implement business processes w Understand concepts and technologies for e -Business solutions w Examine process customization for e. Business development Rational Unified Process Fundamentals, v. 2000. 02. 10 Copyright © 2000 Rational Software, all rights reserved 2

Definition: e-Business Building systems (business tools) that automate business processes Rational Unified Process Fundamentals, v. 2000. 02. 10 Copyright © 2000 Rational Software, all rights reserved 3

Generations of e-Business systems • Use the web to publish information Rational Unified Process Fundamentals, v. 2000. 02. 10 Copyright © 2000 Rational Software, all rights reserved • Implement e -commerce and simple transactional models 4 • Reengineer a process to provide highly personalized, adaptive solutions. • Automate the complete business process, often integrating with legacy systems and internet devices.

Categories of e-Business Development w Customer to business (C 2 B) w Business to business (B 2 B) w Business to customer (B 2 C) w Customer to customer (C 2 C) Rational Unified Process Fundamentals, v. 2000. 02. 10 Copyright © 2000 Rational Software, all rights reserved 5

Characteristics of e-Business Development w Externally imposed rules and regulations, often of high complexity (business rules) w Interface with legacy data structures w Customer focus w Compressed time schedules w Concern for performance and reliability of the final system Rational Unified Process Fundamentals, v. 2000. 02. 10 Copyright © 2000 Rational Software, all rights reserved 6

Contrast with Traditional Development w More emphasis on business modeling w More emphasis on user-interface § graphic design § anonymous users w Use of e-Business enabling technologies to define the architecture § inherently distributed architecture w Greater focus on performance testing § unpredictable loads Rational Unified Process Fundamentals, v. 2000. 02. 10 Copyright © 2000 Rational Software, all rights reserved 7

The Role of Enabling Technologies in e-Business Changed Business Practices Technological Advances Rational Unified Process Fundamentals, v. 2000. 02. 10 Copyright © 2000 Rational Software, all rights reserved New Business Opportunities 8

RUP Content for e-Business Development w Roadmap: Developing e-Business Solutions § Extends the process based on technology issues § Emphasizes related parts of workflow § Provides more specific information for activities § Suggests appropriate artifacts § Introduces related concepts Rational Unified Process Fundamentals, v. 2000. 02. 10 Copyright © 2000 Rational Software, all rights reserved 9

E-business Process Variation: Phases èBusiness Modeling w Requirements w Analysis & Design w Implementation w Test w Environment Rational Unified Process Fundamentals, v. 2000. 02. 10 Copyright © 2000 Rational Software, all rights reserved 11

Process Variation in Business Modeling w Compared to system modeling. . . § Increased prominence of business modeling § Greater variety of stakeholders w For e-Business modeling. . . § Limit scope to area of influence § Identify automated and non-automated parts of the business § Consider role of legacy systems Rational Unified Process Fundamentals, v. 2000. 02. 10 Copyright © 2000 Rational Software, all rights reserved 12

Six Scenarios for Business Modeling (review) w Organization chart w Domain modeling w One business, many systems w Generic business model w New business w Revamp Rational Unified Process Fundamentals, v. 2000. 02. 10 Copyright © 2000 Rational Software, all rights reserved 13

Business Processes? Branch office Credit department Loan committee New loan: from Loan application to Loan disbursement Business Process w. A set of internal activities performed to serve a customer w. The purpose is to offer each customer the right product or service w. Cuts right through functional organization structures; requires changes in organizational structures Rational Unified Process Fundamentals, v. 2000. 02. 10 Copyright © 2000 Rational Software, all rights reserved 14

The Fundamental Business Goal? Perceived Value The Company Business process A Business process B Business process C A Customer is a “User of the Company” Rational Unified Process Fundamentals, v. 2000. 02. 10 Copyright © 2000 Rational Software, all rights reserved 15

Example Business Use-Case Model Business actor represents a role played in relation to the business by someone or something. Business use case - a sequence of actions performed in a business that produces a result of observable value to an individual actor of the business. Core business processes for a generic software solution vendor Rational Unified Process Fundamentals, v. 2000. 02. 10 Copyright © 2000 Rational Software, all rights reserved 16

E-business Process Variation: Phases w Business Modeling èRequirements w Analysis & Design w Implementation w Test w Environment Rational Unified Process Fundamentals, v. 2000. 02. 10 Copyright © 2000 Rational Software, all rights reserved 17

Process Variation in Requirements w Rely on the business assessment and organization description from Business Modeling. w Rely on stakeholder input obtained during Business Modeling. w Let the system boundaries reflect the business boundaries (the system is the business). Rational Unified Process Fundamentals, v. 2000. 02. 10 Copyright © 2000 Rational Software, all rights reserved 18

User-Centered Design w Business success depends on accommodating users § Varying legislation around the globe § Standards organizations § Involve and observe users § Integrate interface development with design § Iterative design Rational Unified Process Fundamentals, v. 2000. 02. 10 Copyright © 2000 Rational Software, all rights reserved 20

Model the User Interface w Focus on user interface usability w Create a storyboard w Find boundary classes as preparation for an object-oriented interface w Prepare userinterface prototype Rational Unified Process Fundamentals, v. 2000. 02. 10 Copyright © 2000 Rational Software, all rights reserved 21

E-business Process Variation: Phases w Business Modeling w Requirements èAnalysis & Design w Implementation w Test w Environment Rational Unified Process Fundamentals, v. 2000. 02. 10 Copyright © 2000 Rational Software, all rights reserved 24

Process Variation in Analysis & Design w Web architecture is well-defined. w Focus on GUI and business logic. w Use UML Extension for Web Applications w Map non-functional system requirements to web development framework. w Focus on web server, application server (processes and threads). w Describe distribution for scalability and fault tolerance. Rational Unified Process Fundamentals, v. 2000. 02. 10 Copyright © 2000 Rational Software, all rights reserved 25

Using UML for Web Application Architectures w UML designed to allow formal extensions § stereotypes (icons), tagged values, constraints w Distinction between business logic and presentation logic w Allows modeling of web page behavior on client and server Rational Unified Process Fundamentals, v. 2000. 02. 10 Copyright © 2000 Rational Software, all rights reserved 27

Three Common Web Architecture Patterns w Thin web client § Minimal client configuration § Minimal computing power § Business logic on the server w Thick web client § Client-side scripting and custom objects § Some business logic w Web delivery § Web as delivery mechanism for a distributed client/server system Rational Unified Process Fundamentals, v. 2000. 02. 10 Copyright © 2000 Rational Software, all rights reserved 28

E-business Process Variation: Phases w Business Modeling w Requirements w Analysis & Design èImplementation w Test w Environment Rational Unified Process Fundamentals, v. 2000. 02. 10 Copyright © 2000 Rational Software, all rights reserved 29

Process Variation in Implementation w Architectural prototypes w Component implementation § browser environment § server-side § legacy enhancements § database enhancements w Subsystem integration w System integration Rational Unified Process Fundamentals, v. 2000. 02. 10 Copyright © 2000 Rational Software, all rights reserved 30

E-business Process Variation: Phases w Business Modeling w Requirements w Analysis & Design w Implementation èTest w Environment Rational Unified Process Fundamentals, v. 2000. 02. 10 Copyright © 2000 Rational Software, all rights reserved 31

Process Variation in Test w Test for a scalable and Reliable Architecture § Benchmark testing § Contention testing § Performance profiling § Load testing § Stress testing w Appropriateness of web site structure w Browser compatibility Rational Unified Process Fundamentals, v. 2000. 02. 10 Copyright © 2000 Rational Software, all rights reserved 32

E-business Process Variation: Phases w Business Modeling w Requirements w Analysis & Design w Implementation w Test èEnvironment Rational Unified Process Fundamentals, v. 2000. 02. 10 Copyright © 2000 Rational Software, all rights reserved 33

Process Variation in Environment w Develop user-interface guidelines § e. g. ‘Design Brief’ w Web-site consistency w Develop web UI prototype Rational Unified Process Fundamentals, v. 2000. 02. 10 Copyright © 2000 Rational Software, all rights reserved 34

Summary: Process for e-Business Development w What is an “e-Business”? w How is e-Business development different from traditional development? w What role do business models play in edevelopment? w Give examples of the process variant for e. Business development. Rational Unified Process Fundamentals, v. 2000. 02. 10 Copyright © 2000 Rational Software, all rights reserved 35