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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

Lecture 10:Analysis, Design and Implementation

B1 – Strategic and tactical tools for e-business

Philip Holst

Center for applied ICT

Copenhagen Business School

learning outcomes
Learning outcomes
  • Summarize approaches for analysing requirements for e-business systems
management issues
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
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
typical functions in workflow management
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
process modeling
Processmodeling
  • the processes and their constituent sub-processes
  • the dependencies between processes
  • the inputs (resources) needed by the processes and the outputs
ressource events agents rea model
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
use case modeling
Use-casemodeling
  • Analysis from the useperspective.
  • Identifying the actorswhointeractwith the system
  • Describing scenarios of use and linkingactors to use-cases
data modeling
Data modeling
  • Identifying:
  • Entities – the groupings in the domain
  • Attributes – the characteristics of the entities
  • Relationships – the connection between entities
learning outcomes1
Learningoutcomes

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

the online customer experience
The online customerexperience

Your competitors website is just one click away!

approches to design
Approches to design
  • Participatory Design
  • Contextual design
  • Human-centered design processes for interactive systems (ISO 13407 Model, 1999)
usability
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
Goals for usability

(Sharp et al. 2007)

  • Effective to use
  • Efficient to use
  • Safe to use
  • Easy to learn
  • Easy to remember
  • Good utility
some usability design principles
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
accessibility
Accessibility
  • Size of display
  • Type of browser
  • Resolution
  • Mobile acces
security types of attacks
Security – types of ”attacks”
  • Malware
  • Phishing
  • Denial-of-service (DoS) attack
  • Virus
  • Hacking
security countermeasures
Security - countermeasures
  • Information security management systems
  • Antivirus
  • Firewall
  • Encryption
  • Information security policy
  • Security standards (e.g.ISO 17799)
  • Ethical hacker (White hat hackers)
security secure transactions
Security - Securetransactions
  • SecureSocketLayer (SSL)
  • Virtual Private Network (VPN)
  • Digital signatures
  • Certificates (e.g. Verisign)
learning outcomes2
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 issues1
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?
technical implementation issues
Technicalimplementationissues
  • Acquisition techniques
  • Site implementation tools
  • Content management and updating
  • Localization
  • System changeover
  • Evaluation and monitoring
acquisition methods
Acquisitionmethods
  • In-housedevelopment (Bespokedevelopment)
  • Highlytailored solution
  • Customized standard packaged solution (Off-the-shelf)
  • Hosted
  • E-commerce servers
common web development applications and frameworks
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)

usability evaluation
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
content management system cms
Content management system (CMS)
  • Helpseasyauthoring
  • Publicationworkflow
  • Versioning
  • Tracking and monitoring
performance measurement
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)

common measurements
Commonmeasurements
  • Uniquevisitors
  • Visits
  • Page impression
  • Ad impressions
  • Ad clicks
tools for performance measurements
Tools for performance measurements
  • Oftenembedded in the webserver
  • Googleanalytics
sum up
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
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