S01 gae and_hybrid_app_v1.0

Google App Engine and Hybrid App
대표이사 장선진
@jangsunjin
Mobile Phone: (+82) 010-4585-1770
E-Mail: jangsunjin@softwareinlife.com

Paradigm shift ?
If computers of the kind I have advocated become the computers of the future, then computing may someday be organized as a public utility just as the telephone system is a public utility...
The computer utility could become the basis of a new and important industry.
John McCarthy, speaking at the MIT Centennial in 1961
John McCarthy was responsible for the coining of the term "Artificial Intelligence" in his 1955 proposal for the 1956 Dartmouth Conference and is the inventor of the Lisp programming language.
http://en.wikipedia.org/wiki/John_McCarthy_(computer_scientist)

Multi-Device
Smart TV

N-Screen
480 x 854
320x480
1024x768
1280x800
480x800
960x640

Fragmentation
2.0 (Eclair) included a new web browser, with a new user interface and support for HTML5 and the W3C Geolocation API.
2.1 (Eclair)
2.2 (Froyo) introduced speed improvements with JIT optimization and the Chrome V8 JavaScript engine, and added Wi-Fi hotspot tethering and Adobe Flash support
2.3 (Gingerbread)
3.0 (Honeycomb)
3.1 (Honeycomb) was announced at the 2011 Google I/O on 10 May 2011.
3.2 (Honeycomb)
4.0 (Ice Cream Sandwich) is said to be a combination of Gingerbread and Honeycomb into a "cohesive whole.” It will be released in Q4 2011.

Service
Is software a product or a service?
So from the legal perspective software is really a product. I mean, a service. Sorry for this lapse.
http://en.wikipedia.org/wiki/Service_(economics)
http://se.ethz.ch/~meyer/publications/softdev/product-service.pdf

Hybrid App vs Native App
http://java.sys-con.com/node/1719019/mobile

Webkit
WebKit is a layout engine designed to allow web browsers to render web pages. WebKit powers Google Chrome and Safari, which in January 2011 had around 14% and 6% of browser market share respectively.
It is also used as the basis for the experimental browser included with the Amazon Kindle ebook reader.
The WebKit engine provides a set of classes to display web content in windows, and implements browser features such as following links when clicked by the user, managing a back-forward list, and managing a history of pages recently visited.

Web Browser Statistics
http://www.w3schools.com/browsers/browsers_stats.asp

JavaScript Benchmark
http://limcorp.net/2010/microsoft-ie9-with-gpu-accelerated-html-5-support

HTML 5
Touch/gestural interfaces — Gestural technology has been implemented by HTML5 framework vendors, such as Sencha.
Video/Audio — Now addressed by HTML5 for sustained playback. Audio synchronization for short sound effects still needs work in the browsers.
Camera/Video access — HTML5 can handle photo capture from a web page on Android devices (at least on the latest versions, run by the Honeycomb OS; but it can’t handle it on iPhones yet).
Contacts access — Here, HTML5 addresses file access, but most apps are beginning to draw from the cloud anyway, and not from the device client.
Accelerometer access – HTML5 can handle this.
Bluetooth access — This is one device access feature HTML5 has not addressed yet. That said, even for native apps, bluetooth access is fairly limited
Disconnected Operation — Web apps through HTML5 can now work in disconnected mode; you can get up to 50MB of database space if you ask user permission, in order to keep operating without an internet connection.

Global Users
http://geographics.cz/socialMap/

Map of all Google data center locations
http://www.wayfaring.com/maps/show/48030

Google App Engine
Google App Engine (often referred to as GAE or simply App Engine) is a platform for developing and hosting web applications in Google-managed data centers. It was first released as a beta version in April 2008.
Google App Engine is cloud computing technology.
It virtualizes applications across multiple servers.
http://code.google.com/appengine/

Key Benefit of Cloud Computing
Economic Element
Pay-as-you-go
Pay-as-you-grow
Utility based payment
Lower TCO
Architectural Element
Simple, development
Abstract environment
Easy & Agile Development
Device & Location Independent
24x7 Support(SLA)
Secure Storage Management
Highly Automated
Strategic Element
Focus on your core business
Reliability & Scalability
Lower Capital Expenditure

Key Factor of Cloud Computing
Cost
Scalability
Flexibility
Availability
Portability
Collaboration
Security
Privacy
SLA
VS
http://www.b10wh.com/2009/02/the-size-of-the-company-does-not-reflect-on-utilization-of-cloud-computing/

Capacity vs Usage

Cloud Computing Market
2010 Virtualization and Cloud Computing Survey by Zenoss

SaaS, PaaS, IaaS
Managed by Vendor
Software
Platform
Infrastructure
(as a Service)
(as a Service)
(as a Service)
Applications
Applications
Applications
Runtimes
Runtimes
Runtimes
Security
Security
Security
Databases
Databases
Databases
Servers
Servers
Servers
Virtualization
Virtualization
Virtualization
Storage
Storage
Storage
Hardware
Hardware
Hardware
Networking
Networking
Networking

GAE System Monitoring
http://code.google.com/status/appengine

GAE System Monitoring

GAE Overview
Hybrid
App
XML
JSON

Google Libraries API
Chrome Frame
Dojo
Ext Core
jQuery
jQuery UI
MooTools
Prototype
script.aculo.us
SWFObject
Yahoo! User Interface Library (YUI)
WebFont Loader
http://code.google.com/apis/libraries/

Java SDK
http://java.sun.com/javase/downloads/index.jsp
Google Web Toolkit
http://code.google.com/intl/ko-KR/webtoolkit/
Eclipse IDE
http://www.eclipse.org/downloads/
Google Plugin for Eclipse, for Eclipse 3.5 (Galileo):
http://dl.google.com/eclipse/plugin/3.5
GAE for Java 개발 환경

Google Apps Marketplace
The Google Apps Marketplace offers products and services designed for Google users, including installable apps that integrate directly with Google Apps. Installable apps are easy to use because they include single sign-on, Google's universal navigation, and some even include features that integrate with your domain's data.
http://www.google.com/enterprise/marketplace/
https://www.google.com/enterprise/marketplace/?pli=1

The Network is the computer
The network will truly be the computer.
Google's CEO, Eric Schmidt, The Economist, 2006
Gilder’s Law: Bandwidth grows at least three times faster than computer power.
George F. Gilder
http://googlesystem.blogspot.com/2006/11/network-will-truly-be-computer.html
http://en.wikipedia.org/wiki/George_Gilder

감사합니다.
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S01 gae and_hybrid_app_v1.0

by Sun-Jin Jang on Jul 24, 2011

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