1. Software Development

2. Chapter 2 – Programming on Windows 8

3. Contents ❷❸ Getting to know Windows 8 Windows 8 applications What tools are used to develop Windows 8 applications? Assignments Questions and answers

4. Getting to know Windows 8 The most significant new feature is the new Start Screen designed for touchscreens The Start Screen replaces the earlier Start Menu

5. Windows 8 Start Screen Although the Start Screen has changed, Windows 8 also includes the familiar desktop view – In desktop view Windows 8 functions like earlier Windows version, i.e. 7 The new Start Screen enables applications to display automatically updated status changes, such as new messages

6. Windows 8 versions Four different available Windows 8 versions 1.Windows RT – ARM platform, only new Windows 8 apps, no support for old x86 applications 2.Windows 8 – X86 platform, for basic use 3.Windows 8 Professional – X86 platform, for enterprise use 4.Windows 8 Enterprise – X86 platform, for large-scale enterprises and corporations

7. Processor architectures ❸ Computers and mobile devices use two different, mutually incompatible processor architectures – PCs use the familiar Intel's x86 architecture – Especially mobile devices use ARM architecture Today programming techniques which enable an application to function on both architectures exist

8. Windows 8 applications New Windows 8 applications are developed using new techniques and they function in fullscreen mode – Function on ARM in addition to x86 Full-screen view allows users to invest 100% of their concentration on the application Potential for new kind of visuality – Great opportunity for e.g. Graphic designers

9. Consistent layouts and interfaces Windows 8 applications have two common requirements – Consistent layouts with other applications conforming to Microsoft guidelines – Compatibility with the user interface Consistent layout requirements do not concen games etc. Technical requirements insist that applications must be developed using Windows 8-compliant programming techniques

10. Esimerkki ulkoasuvaatimuksista

11. Windows Store Windows 8 applications are distributed and sold through Windows Store. Windows 8 applications must be installed through the Store, and not for example by copying – Developers can run and test their applications with a so called developer license Why are applications available only through the Windows Store?

12. Application certifications All applications available at the Store have undergone Microsoft's quality and data security certification processes – Only certified applications can be accepted into the Windows Store As only certified applications can be installed, users can be sure that their applications are free from e.g. viruses. Certification requirements are both technical and content-related

13. Commercial possibilities Applications and games distributed through the Store can be free or paid – Typically the price paid applications is a few euros A free application or game usually attracts a userbase more easily – Developer of a popular applications can include ads and gain revenue thusly

14. Required tools At least the following tools are needed to 1.Computer with a Windows 8 operating system – It is also recommened to have a touchscreen device, but it is not required 2.Development tools – Visual Studio (more in next slides) 3.Internet connection

15. Company distribution Companies generally wish to keep their internal applications from public distribution – Global Windows 8 Store may not be a suitable distribution channel for enterprise applications The solution is a feature called Enterprise Sideloading – Enterprises are provided an internal distribution channel for Windows 8 applications – Separately sold licenses, minimum 100/order

16. Development tools Windows 8 apps can be developed using Microsoft own development tool, Visual Studio – Visual Studio is free for personal use, but fee-paying professional versions exist Microsoft's Expression Blend cna be used for graphic design and animation Visual Studio can be downloaded at www.visualstudio.com www.visualstudio.com – Express versions are free and they can also be used for commercial works

17. Visual Studio 2013

18. Programming languages Four central options – C# – Visual Basic – C++ – HTML5 ja JavaScript Typical choices are C# or HTML5/JS – All programming languages can be used to access the same functionalities in Windows 8 applications

19. Assignments Think of three applications that would be fun and useful at home, school, work, or with hobbies. Could there be a device that uses two different process architectures. What advantages could this kind of a solution have? Write down three upsides and three downsides to having a device be controlled by a touch screen. Consider what advantages visuals and animations might have in a utility program for companies.

20. Questions and answers 1 What features make an app suitable for touch-screen devices instead of keyboard and mouse? An application intended to be used on touch-screen devices need to take account many things that differ from traditional keyboard-and-mouse- driven computer programs. The most essential thing to understand is that a touch interface is more inaccurate than a mouse. Because of this all elements that are meant to be touched must be made relatively large. Another important element of touch-screen devices are different kinds of gestures. Whereas a normal PC program can start different processes on the push of different buttons, such as F1 and F2 function keys, these features must be presented completely differently in touch-screen devices without a physical keyboard.

21. Questions and answers 2 What is a processor architecture? What different processor architectures are there? The processor architecture or microarchitecture defines what technical features a processor has. These features then effect what kinds of software they can run. At the moment the most commercially significant architectures are Intel's x86/x64 platform and ARM, which used especially on mobile devices. In the history of information technology other famous microarchitectures have also existed, such as Motorola 6502, Alpha, Itanium, and Zilog Z80.

22. Questions and answers 3 What tools are used to develop Windows 8 apps? Windows 8 apps can be developed easiest on Microsoft Visual Studio development tool and the compatible Blend program. Blend is a graphics tool and works well in developing and improving your application's visuals.