Development Process

1
Development Process
2
Basic Stages

• Identify the Users
• Set High Level Goals
• Develop Usage Scenarios (or Use Cases)
• Build a Prototype
• Write Specifications
• Develop the Application

3
Identify the Users

• Personas
• Demography
• Relationship with the Application
• Expectations and Experiences

4
Set High Level Goals

• What does the user want to accomplish?
• What does the business/organization/ sponsor want
  to accomplish?

5
Develop Usage Scenarios

• Narrative descriptions of what the user
  experience is like
• Multiple scenarios for different goals
• MM Pet Market example
• Sydney is looking for a new dog. There are no
  brick-and-mortar pet stores in her neighborhood,
  so she has been shopping for dogs online. She
  connects to the online pet store and quickly
  browses to the breed she is interested
  inDalmatians. Wanting to learn more, she clicks
  a button to open a "details" window that helps
  her learn about the breed. Satisfied, she clicks
  "Add to Cart" and then clicks the "Check Out"
  button. Because she has purchased from this
  online store before, she only needs to identify
  herself with a password, and the rest of her
  information is automatically filled from a stored
  database profile.

6
Build a Prototype

• Functional experiment
• Test yourself and with users

7
Write Specifications

• Describe exactly how each part of the application
  will work
• Define data structures and integration plans
• Database, XML, etc.
• Connecting to scripts, web services, etc.

8
Develop the Application

• Build the application
• Test individual and aggregate features
• Revise and regress