Prototyping in Web software
development
T-76.5650 Seminar in Software Engineering	

Aalto University School of Science	

E...
Research questions
• What
• How

benefits do prototypes bring?	


should I use prototyping in a web application
developmen...
Importance
• Prototyping

can improve
product quality and increase
value if used in the right way	


• Creating

a prototy...
”A prototype is a working model	

built to develop and test design ideas.”	

!
-- M. Walker, L. Takayama, and J.A. Landay
About software projects
• There

is commonly a level
of uncertainty	


• Users

may not be able to
voice all the business ...
purpose of Prototyping
• Addresses

the uncertainties to prevent costs at a later time	


• Activates

the users’ thinking...
Horizontal vs.	

vertical
horizontal prototype
implements all of the
different functions, but not
all of their functionali...
low fidelity vs.	

high fidelity
• High

fidelity aims visually
close to the desired end
result	


• Low

fidelity allows ...
Design vs.	

Functional
design prototype
shows the visual aspects of
the intended product	


•A

functional prototype
show...
about sw development
methodologies
• Agile

or no agile, a
prototype serves the
purpose of obtaining
knowledge and facilit...
Using a prototype
• To

start and facilitate
discussion	


• To

help the user understand
and communicate the
business nee...
Thank You
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Prototyping in Web Software Development

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Prototyping in Web Software Development

  1. 1. Prototyping in Web software development T-76.5650 Seminar in Software Engineering Aalto University School of Science Erkki Tapola <erkki.tapola@aalto.fi> ! 10.5.2012
  2. 2. Research questions • What • How benefits do prototypes bring? should I use prototyping in a web application development project?
  3. 3. Importance • Prototyping can improve product quality and increase value if used in the right way • Creating a prototype is an investment • Return on Investment (ROI) for making the prototype
  4. 4. ”A prototype is a working model built to develop and test design ideas.” ! -- M. Walker, L. Takayama, and J.A. Landay
  5. 5. About software projects • There is commonly a level of uncertainty • Users may not be able to voice all the business needs without help • There are various types of software development processes
  6. 6. purpose of Prototyping • Addresses the uncertainties to prevent costs at a later time • Activates the users’ thinking and begins visual and conceptual communication • Provides • Find a basis for discussion about the business needs the maximum number of real usability issues with- out compromising cost and flexibility for designers
  7. 7. Horizontal vs. vertical horizontal prototype implements all of the different functions, but not all of their functionality •A vertical prototype implements a specific function in more detail •A
  8. 8. low fidelity vs. high fidelity • High fidelity aims visually close to the desired end result • Low fidelity allows the user to concentrate on the intended functionality and business requirements
  9. 9. Design vs. Functional design prototype shows the visual aspects of the intended product •A functional prototype shows the intended functionality •A
  10. 10. about sw development methodologies • Agile or no agile, a prototype serves the purpose of obtaining knowledge and facilitating discussion • Prototyping can be embedded in many
 types of software development processes
  11. 11. Using a prototype • To start and facilitate discussion • To help the user understand and communicate the business needs better • To reduce cost in places where changes get more expensive as time passes
  12. 12. Thank You

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