Agile usability approach, a presentation to the Bank of Qingdao

可用性 - 成功的网页用户界面关键
因素：一个便捷的方式
Usability, key factor for the success of web user
interface: an agile approach

Roberto DADDA

Roberto DADDA Milano, November 22, 2012

Usability

“The effectiveness, efficiency and satisfaction with
which specified users achieve specified goals in
particular environments.”

● effectiveness: the accuracy and completeness with which specified users can
achieve specified goals in particular environments
● efficiency: the resources expended in relation to the accuracy and completeness of
goals achieved
● satisfaction: the comfort and acceptability of the work system to its users and other
people affected by its use


可用性

“ 指定用户在特殊环境下达到指定目标时的有效性，效
率和满意程度”

 有效性：指定用户在特定环境下达到指定目标时的精确性和完整性
 效率：为达到目标精确性和完整性所用的资源
 满意度：为用户和其他相关人员带来的工作系统舒适度和可接受程度。

Roberto

Usable,
a many-sided
concept

Functional (it does what it is claimed to do)
●

Reliable (it works consistently)
●

Usable (it works in a way that is consistent with the user's expectations)
●

Meaningful (it does something important or valuable)
●

Pleasurable (it is enjoyable to use)
●


可用性，
一个多面概念


功能性（能达到承诺的各项功能）

可靠性（能不间断地运作）

可用性（符合用户的期望值）

有意义（所做的是重要的或有价值的）

娱乐性（愉快的使用过程）

Roberto

Ergonomics


human processor model


●Add value via Web
●Benefit and usability greater than phone call

●Find-Choose-How to-Track

●On site test

●3.5 visitors/day
●Dismissing 80% of call center workforce


✗ After reworking for Christmas +80% (average 40%)

✗ 300.000 repeat customers (+67%)


Unusable!


Not always easy!


Roberto
DADDA

October 26, 2011 PBZ - Zagreb 32

Roberto
DADDA

October 26, 2011 PBZ - Zagreb 33

Surface

Skeleton

Structure

Scope

Strategy


user tasks:
Surface • enter numbers
• enter text
• enter formulas
• format cells
Skeleton • sort information
• filter information
• aggregate information
Structure • graph data
• save data
• import data
Scope • export data
• print
• …..
Strategy


Surface

task
Skeleton panes

Structure modal dialogs

Scope
modal wizards

Strategy


Roberto
Surface DADDA

Skeleton

Structure

Scope

Strategy

May 14-15, 2012 Agile Croatia Conference - Zadar 40

Do not focus on tools


roberto@dadda.it www.dadda.it

robertodadda


Agile usability approach, a presentation to the Bank of Qingdao

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