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Mobile Business
- 1. Mobile Business Cuauhtemoc Delgado 28.11.2007 Development of Business Applications 1
- 2. Mobile Business Presentation Contents: Background WAP WML WMLScript Demo 2
- 3. Background (1/2) Wireless data market and the Internet are growing very quickly. New and exciting information services. Users in movement. Services without desktop access. Most of the original technology developed for the Internet has been designed for desktop and larger computers. Most of the designs for medium to high bandwidth, generally reliable data networks. source: Wireless Application Protocol Forum – WAP-210-WAPArch-20010712-a.pdf 3
- 4. Background (2/2) Services for Hand-held devices?, but... Less powerful CPUs, Less memory (ROM and RAM), Restricted power consumption, Smaller displays, and Different input devices (e.g., a phone keypad). source: Wireless Application Protocol Forum – WAP-210-WAPArch-20010712-a.pdf 4
- 5. Mobile Business The solution ? 5
- 6. Wireless Application Protocol WAP is published by the WAP Forum, founded in 1997 by Ericsson, Motorola, Nokia, and Unwired Planet. Forum members now represent over 90% of the global handset market, as well as leading infrastructure providers, software developers and other organizations 6
- 7. Mobile Business Presentation Contents: Background WAP WML WMLScript Demo 7
- 8. What is WAP? wireless industry came up with the idea of WAP. The point of this standard was to The show internet contents on wireless clients, like mobile phones. WAP stands for Wireless Application Protocol WAP is an application communication protocol WAP is used to access services and information WAP is inherited from Internet standards WAP is for handheld devices such as mobile phones WAP is a protocol designed for micro browsers WAP enables the creating of web applications for mobile devices. WAP uses the mark-up language WML (not HTML) WML is defined as an XML 1.0 application wireless services provided by WAP are independent of the underlying digital The wireless network technology 8 http://www.w3schools.com/wap/wap_intro.asp
- 9. WAP outside Checking train table information Ticket purchase Flight check in Viewing traffic information Checking weather conditions Looking up stock values Looking up phone numbers Looking up addresses Looking up sport results 9
- 10. WAP MODEL WAP CLIENT WAP GATEWAY WEB BROWSER http://www.javaworld.com/javaworld/jw-06-2000/jw-0602-wap.html?page=2 10
- 11. WAP BROWSER * WAP uses a Micro Browser. * minimal demands on hardware, memory and CPU. * display restricted mark-up language called WML. 11
- 12. WAP GATEWAY Intermediary between the mobile and Internet networks. Takes care of the necessary binary encoding of content. Can also translate WML to/from HTML DNS resolution. 12 http://articles.techrepublic.com.com/5100-22-1045252.html
- 13. WEB SERVER HTML DYNAMIC HTML WML DYNAMIC WML 13
- 14. Mobile Business Presentation Contents: Background WAP WML WMLScript Demo 14
- 15. XML first... XML stands for <note> EXtensible Markup <to>SnFco.</to> Language. <from>Fulda</from> <subj>Reminder</subj> <body> Start working!, demo on 1st. December XML is designed to </body> describe data and to </note> focus on what data is. 15
- 16. What is WML? WML stands for Wireless Markup Language. It is a mark-up language inherited from HTML, but WML is based on XML, so it is much stricter than HTML. WML is used to create pages that can be displayed in a WAP browser. Pages in WML are called DECKS. Decks are constructed as a set of CARDS. Home pages .wml instead of .html 16 http://www.w3schools.com/wap/wap_intro.asp
- 17. WML Overview WML Tags WML Decks and Cards WML examples 17
- 18. WML Tags WML is mostly about text. The use of tables and images is strongly restricted. Since WML is an XML application, all tags are case sensitive (<wml> is not the same as <WML>) All tags must be properly closed. 18 http://www.w3schools.com/wap/wap_intro.asp
- 19. WML Decks And Cards pages are called DECKS. WML are constructed as a set of CARDS. DECKS related to each other with links. CARDS a WML page is accessed all the cards in the When page are downloaded from the WAP server. Navigation between the cards is done by the phone computer - inside the phone - without any extra access trips to the server. 19 http://www.w3schools.com/wap/wap_intro.asp
- 20. WML examples <?xml version=quot;1.0quot;?> <!DOCTYPE wml PUBLIC quot;-//WAPFORUM//DTD WML 1.1//ENquot; quot;http://www.wapforum.org/DTD/wml_1.1.xmlquot;> <wml> <card id=quot;cityquot; title=quot;Fulda Guidequot;> <p align=quot;centerquot;></p> <p> <a title=quot;Educationquot; href=quot;#educationquot;>Education</a><br/> <a title=quot;Restaurantsquot; href=quot;#foodquot;>Restaurants</a><br/> <a title=quot;Shoppingquot; href=quot;#shoppingquot;>Shopping</a><br/> <a title=quot;Weatherquot; href=quot;#weatherquot;>Weather</a><br/> </p> </card> <card id=quot;foodquot; title=quot;Restaurantsquot;> <p><img src=quot;food.bwmpquot; alt=quot;logoquot;/></p> <p> <a title=quot;Chinesequot; href=quot;#chinesequot;>Chinese</a><br/> <a title=quot;Germanquot; href=quot;#germanquot;>German</a><br/> <a title=quot;Greekquot; href=quot;#greekquot;>Greek</a><br/> <a title=quot;Italianquot; href=quot;#italianquot;>Italian</a><br/> </p> </card> </wml> 20
- 21. WML tags summary Paragraphs input fields Line breaks select an option Text Formating go, previous, refresh Tables set and read variables Links Images (.wbmp) 21
- 22. Mobile Business Presentation Contents: Background WAP WML WMLScript Demo 22
- 23. What Is WMLScript? WMLScript is the scripting language used in WML pages WMLScript is a light version of the JavaScript language WML scripts are not embedded in the WML pages. WML pages only contains references to script URLs WMLScript is compiled into byte code on the server before it is sent to the WAP browser WMLScript is a part of the WAP specification Used to validate user input, generate dialog boxes, view error messages. http://www.w3schools.com/wmlscript/default.asp 23
- 24. Calling WmlScript <?xml version=quot;1.0quot;?> <!DOCTYPE wml PUBLIC quot;-//WAPFORUM//DTD WML 1.1//ENquot; quot;http://www.wapforum.org/DTD/wml_1.1.xmlquot;> <wml> <card id=quot;no1quot; title=quot;Go to URLquot;> <do type=quot;optionsquot; label=quot;Goquot;> <go href=quot;check.wmls#go_url('yahoo')quot;/> </do> /* this is check.wmls */ </card> extern function go_url(the_url) { </wml> if (the_url==quot;yahooquot;) { WMLBrowser.go(quot;http://wap.yahoo.com/quot;) } } 24
- 25. WmlScript Summary Dialogs Library Float Library Lang Library String Library Url Library WmlBrowser Library 25
- 26. Mobile Business Presentation Contents: Background WAP WML WMLScript Demo 26