Zappos - Cybersecurity

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Mobile Systems

Chapter Extension 3

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Study Questions

C o p y r i g h t © 2 0 1 7 P e a r s o n E d u c a t i o n , I n c .

Q1: What are mobile systems?

Q2: Why are mobile systems important?

Q3: How do native and Web-based mobile applications compare?

Q4: What characterizes quality mobile user experiences?

Q5: What are the challenges of personal mobile devices at work?

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Q1: What Are Mobile Systems?

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• Information systems to support users in motion – Computing Device – Small – Lightweight – Power-conserving – Capable Of Wireless

Access

• Major elements in a mobile system – Users in motion – Mobile devices – Wireless connectivity – Cloud-based

resources

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Elements of a Mobile Information System

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Q2: Why Are Mobile Systems Important?

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Q3: How Do Native and Web-based Mobile Applications Compare?

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Q3: How Do Native and Web-based Mobile Applications Compare? (cont’d)

C o p y r i g h t © 2 0 1 7 P e a r s o n E d u c a t i o n , I n c .

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Developing Native Mobile Applications

C o p y r i g h t © 2 0 1 7 P e a r s o n E d u c a t i o n , I n c .

• Run on any operating system and device

• Serious, heavy-duty, professional programming languages – Objective-C, C#, C++, Swift, Java, VB.NET, etc. – Gives close control over computing device, enables creation

of sophisticated and complex user interfaces – Fast and efficient use memory

• Limited by type of operating system

• Costly development

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Developing Web Mobile Applications

C o p y r i g h t © 2 0 1 7 P e a r s o n E d u c a t i o n , I n c .

• Object-oriented languages: html5, css3, Javascript

• Browsers handle idiosyncrasies of operating system and underlying hardware

• html5 supports graphics, animation, 2D animations, other sophisticated user experiences

• css3 used with html5 to specify appearance of content coded in html

• JavaScript provides underlying logic of application

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Native Mobile Applications

C o p y r i g h t © 2 0 1 7 P e a r s o n E d u c a t i o n , I n c .

• Mac OS and iOS applications constructed using Objective-C or Swift programming languages

• Linux (Android) applications constructed using Java

• Windows applications constructed using C#, VB.NET, C++, and others

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Browser Differences

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• Web applications limited by capabilities of browser

• Sophisticated browsers cannot offer full capabilities of underlying operating system and hardware

• Web applications unable to support very specialized and complex applications, less true each year

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GetHuGames SpiroCanvas

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Sophisticated HTML5 Application

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Which Is Better?

C o p y r i g h t © 2 0 1 7 P e a r s o n E d u c a t i o n , I n c .

• Depends on strategy and goals

• Application requirements

• Budget

• Schedule

• Tolerance for managing technical projects

• Need for application revenue

• Thin-client applications cheaper to develop and maintain

• May lack the “wow factor”

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Q4: What Characterizes Quality Mobile User Experiences?

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Characteristics of a Quality Mobile UX

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Chrome-less Interface

C o p y r i g h t © 2 0 1 7 P e a r s o n E d u c a t i o n , I n c .

• No toolbar (chrome) to start a program

• User intuitively knows to click image to start application

• Direct interaction drives application behavior

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Example of Application Scaling

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Example of Microsoft Edge Charm Sharing

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Mobile Systems Cloud Use

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Kindle Roaming Message Displays in Front of Kindle Text

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Q5: What Are the Challenges of Personal Mobile Devices at Work?

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Six Common BYOD Policies

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Advantages of Example BYOD Policies

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