Lecture 10 analysis design and implementation
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Lecture 10: Analysis, Design and Implementation. B1 – Strategic and tactical tools for e-business Philip Holst Center for applied ICT Copenhagen Business School. Analysis. Learning outcomes. Summarize approaches for analysing requirements for e-business systems. Management issues.

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Lecture 10: Analysis, Design and Implementation

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Lecture 10:Analysis, Design and Implementation

B1 – Strategic and tactical tools for e-business

Philip Holst

Center for applied ICT

Copenhagen Business School


Analysis


Learning outcomes

  • Summarize approaches for analysing requirements for e-business systems


Management issues

  • Understanding processes and information flows to improve service delivery

  • What are the critical success factors for analysis and design of e-business systems?

  • What is the balance between requirements for usable and secure systems and the costs of designing them in this manner?


Workflow management

  • “the automation of a business process, in whole or part during which documents, information or tasks are passed from one participant to another for action, according to a set of procedural rules”

  • WfMC (1996)

  • Administrative workflow

  • Production workflows


Typicalfunctions in workflow management

  • Assigning tasks to people

  • Reminding people of their tasks and the sequence they should be performed in

  • Allowing collaboration between people sharing tasks

  • Retrieve information needed for performing tasks

  • Providing managers with an overview of the status of each task


Processmodeling

  • the processes and their constituent sub-processes

  • the dependencies between processes

  • the inputs (resources) needed by the processes and the outputs


Examples of processmodelling


Examples of processmodeling


Event-driven modelling


Ressource, events, agents (REA) model

  • Proposed by William E. McCarthy in 1982 as an accounting system for the computer age

  • goods, services or money, i.e., RESOURCES

  • business transactions or agreements that affect resources, i.e., EVENTS

  • people or other human agencies (other companies, etc.), i.e., AGENTS


Richpictures


Use-casemodeling

  • Analysis from the useperspective.

  • Identifying the actorswhointeractwith the system

  • Describing scenarios of use and linkingactors to use-cases


The Microsoft Customer Model – people and departments


The Microsoft Customer Model – departments and work


The Microsoft Customer Model – personas (roles)


Data modeling

  • Identifying:

  • Entities – the groupings in the domain

  • Attributes – the characteristics of the entities

  • Relationships – the connection between entities


Data modeling


Design


Learningoutcomes

Identify key elements of approaches to improve the interface design and security design of e-commerce systems.


The online customerexperience

Your competitors website is just one click away!


Approches to design

  • Participatory Design

  • Contextual design

  • Human-centered design processes for interactive systems (ISO 13407 Model, 1999)


Usability

”An engineering approach to web design to ensure the user interface of the site is learnable, memorable, error free, efficient, and gives user satisfaction. It incorporates testing and evaluation to ensure the best use of navigation and links to access information in the shortest possible time. A companion process to information architecture.”

(Jakob Nielsen, 2000)


Goals for usability

(Sharp et al. 2007)

  • Effective to use

  • Efficient to use

  • Safe to use

  • Easy to learn

  • Easy to remember

  • Good utility


Someusability design principles

(Nielsen 2001)

  • Visibility of system status

  • Match between system and the real world

  • User control and freedom

  • Consistency and standards

  • Help users recognize, diagnose and recover from errors

  • Error prevention

  • Recognition rather than recall

  • Flexibility and efficiency of use

  • Aesthetic and minimalist design

  • Help and documentation


Information architecture - Cardsorting


Information architecture - sitemaps


Accessibility

  • Size of display

  • Type of browser

  • Resolution

  • Mobile acces


Different elements of online customerexperience


Security – types of ”attacks”

  • Malware

  • Phishing

  • Denial-of-service (DoS) attack

  • Virus

  • Hacking


Security - countermeasures

  • Information security management systems

  • Antivirus

  • Firewall

  • Encryption

  • Information security policy

  • Security standards (e.g.ISO 17799)

  • Ethical hacker (White hat hackers)


Security - Securetransactions

  • SecureSocketLayer (SSL)

  • Virtual Private Network (VPN)

  • Digital signatures

  • Certificates (e.g. Verisign)


Example rules triggered by e-mail


Implementation


Learningoutcomes

  • Produce a plan to minimize the risks involved with the launch phase of an e-business application

  • Define a process for the effective maintenance of an e-business system

  • Create a plan to measure the effectiveness of an e-business application


Management issues

  • What actions can we take to minimize the risks during implementation?

  • What are the critical success factors?

  • How do we transition from previous systems to a new e-business system?

  • What techniques are available to measure the success of our implementation?


Technicalimplementationissues

  • Acquisition techniques

  • Site implementation tools

  • Content management and updating

  • Localization

  • System changeover

  • Evaluation and monitoring


Implementation approaches - The Waterfall model


Implementationapproaches - The iterative approach


Microsoft SureStepimplementationmethodology


Acquisitionmethods

  • In-housedevelopment (Bespokedevelopment)

  • Highlytailored solution

  • Customized standard packaged solution (Off-the-shelf)

  • Hosted

  • E-commerce servers


Common web developmentapplications and frameworks

A survey of the application frameworks used by Fortune 1000 companies in 2007Source: Port80 software (www.port80software.com/surveys/top1000appservers)


Testing


Usabilityevaluation

  • Examples of usability evaluation methods

  • Expert reviews

  • Heuristics

  • Usability evaluation

  • Examples of dimensions of usability evaluation

  • Effectiveness – can the users complete their tasks correctly and completely?

  • Productivity (Efficiency) – are tasks completed in an acceptable time?

  • Satisfaction – are the users satisfied with the interaction


Go-livemethods


Content management system (CMS)

  • Helpseasyauthoring

  • Publicationworkflow

  • Versioning

  • Tracking and monitoring


Example of a (lenghty) contentupdatereviewprocess


Performance measurement

”the process of quantifying the efficiency and effectiveness of past actions throughacquisition, collation, sorting, analysis, interpretation and dissemination of appropriate data”

Neely et al. (2002)


Performance measurementprocess


Commonmeasurements

  • Uniquevisitors

  • Visits

  • Page impression

  • Ad impressions

  • Ad clicks


Performance management levels


Tools for performance measurements

  • Oftenembedded in the webserver

  • Googleanalytics


Sum up

  • Analysis and Design

  • Summarize approaches for analysing requirements for e-business systems

  • Identify key elements of approaches to improve the interface design and security design of e-commerce systems.

  • Implementation

  • Produce a plan to minimize the risks involved with the launch phase of an e-business application

  • Define a process for the effective maintenance of an e-business system

  • Create a plan to measure the effectiveness of an e-business application


Questions?


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