Dialog Design 2

1
Dialog Design 2

• User Profiles

2
End User Computing

• Transfer the responsibility of accessing data and
  generating the appropriate information from it
  from system professional to business user.
• Faster turnaround
• Better communication
• User ownership

3
User Classes

• DP Professionals write code for others
• DP Amateurs write code for their own use
• non_DP Trained Users use code written by others

4
End User Computing
Data
Model
Dialog
5
Roles

• Authorizer Approves acceptance and payment
• User Responsible for business solutions
• Intermediary Run system for user
• Builder Write code for application
• Technical Supports the development
  Support tools
• Toolsmith Build basic tool modules (often work
  for software houses)

6
Design Approaches

• Warehouse
• Mart
• Application

• Professional Systems Analysts
• Business Analysts
• Business User

7
User Profiles

• Different users require different dialog design
  philosophies
• Naive Users
• Dedicated Users
• Professional Users
• Managerial Users

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Naive User

• No formal training
• Low frustration tolerance
• Remembers little of last session
• Example automatic teller machine user

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Naive Users

• Need
• Little chance of misinterpretation
• Little chance of destroying anything
• Use
• Mellow requests
• Limited responses
• Always reply
• Test with representative users

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Dedicated User

• Trained
• Frequent user
• Harassed environment
• Rugged
• Bored
• Poorly paid

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Dedicated Users

• Need
• Efficiency
• Accommodate learning
• Mindless operation
• Task accomplishment and quality of work life
• Humanized design

12
Dedicated Users

• Use
• Sequence tolerance
• Content flexibility synonyms, spelling,
  learning
• Procedure tolerance humble messages, user
  tested, alternative helps, no self-destructs,
  audit trails
• Pacing

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Professional Users

• Experts in some area
• Comfortable with their own ability
• Comfortable with technology
• Want control

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Professional Users

• Want
• Powerful tools
• Good metadata
• Control and flexibility
• Information

15
Professional Users

• Use
• Command language
• Fast technology
• Maximum access and control
• Good documentation

16
Managerial Users

• No training
• Comfortable with PEOPLE
• Impatient
• Non-rugged
• Short time segments
• Casual usage

17
Managerial Users

• Need
• Ease of starting
• Little chance of embarrassment
• Easy recovery
• Much change and evolvement
• Belief that system has value

18
Managerial Users

• Use
• Graphics
• Macros
• Isolation
• Hard copies
• Alternative communication technologies voice,
  pen, etc.

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Issues

• Relational vs. Dimensional
• Single Table vs. Star vs. Snowflake
• Report generator vs. Data base software
• Coding vs. Menu