Introduction. Kari SYSTÄ. Laulasmaa

Transcription

1 Introduction Kari SYSTÄ Laulasmaa

2 About me a short CV Various research and teaching roles at TUT PhD in Computer Science in 1995 Various research and management positions in Nokia Interactive TV platforms Java for itv and phones (Nokia representative and co-lead of MIDP standard) Web as a application platform project Cloudberry Since Dec 2011 professor of software engineering at TUT Web as the application platform SW development methods and processes

3 Research interest Web as an application platform HTML5 etc Web-based mobile agents Software engineering Datamining for software engineering Does Darwin approach work? Project planning aspects 3

4 The concept of computer has changed! *Oma nimi ja esityksen aihe vaihdettava alatunnisteeseen

5 User will use multiple devices *Oma nimi ja esityksen aihe vaihdettava 5 alatunnisteeseen 31.1

6 HTML5 changes how we develop client applications, too Specific support for applications Off-line & local data Graphics and interactions Plug-ins not needed anymore *Oma nimi ja esityksen aihe vaihdettava 6 alatunnisteeseen 31.1

7 Research on Web as the platform lively.cs.tut.fi Lively for Qt Lively 3D 3D widgets Livelykernel CoRED Cloudbrowser HTML5 agents Cloudberry

8 Cloudberry: An HTML5 Cloud Phone Platform for Mobile Devices IEEE Software July/August 2012 A research prototype User visible SW - was all HTML5, - downloaded - but cached *Oma nimi ja esityksen aihe vaihdettava ylätunnisteeseen

9 Key components of Cloudberry Modern browser engine Downloadable top-level Uis Suite of web applications Data API that transparently stored to backend Set of device APIs Domain and permission based security model Process model

10 For more information see the article

11 Implications Web-based software will dramatically change the way people develop, deploy and use software. No more installations! Applications will simply run off the Web. No more upgrades! Always run the latest application version. Instant worldwide deployment! No middlemen or distributors needed. No CPU dependencies, OS dependencies,... The Web is the Platform

12 Cloud browser Session Downloadble Chrome (UI) Apps Multi-device All in HTML

13 Evolution path Cloudberry Research prototype of an HTML5-based smartphone SW stack Cloud browser users can carry their browsing sessions and applications (incl. state) from one device to another. Mobile agents (an old idea) The state of the running program is saved, transported to the new host, and restored, allowing the program to continue where it left of. HTML5 mobile agents Mobile agent platform based on Web technologies

14 Life-cycle of a mobile agent

15 Web (RESTful) approach The Agent server has three operations (RESTful API - URL paths) (or getspecificagent) In addition, agents could also add new API

16 One demo Raspberry PI with temperature metering Agent server Application server Browser on laptop/desktop Mobile device with sensors to detect of movements.

17 Our test

18 The hard edge of the cloud: Agent server with sensor interface

19 How we did it HTML Agent.js App.js Origin server Agent server1 In node.js - Similar execution env - Simple DOM emulation URI to origins Serialized state Browser

20 Example content to upload {"auri": " "huri": " "id": "526636", "variables": {}, "memory": { "high": , "low": , "count": 3, "history": [ , , ] } } 20

21 Additional implementation notes Execution Event-based (external, timer) Serialized state Application should know what is relevant Set of predefined variables Multi-site scripting allowed with CORS headers

22 Why relevant As an agent platform Builds on Web-ecosystem For IoT and WoT - Benefits of moving code Optimize network traffic Add new functionality and intelligence

23 Conclusions Mobile agents that do not just interface with the Web but are Web Core technology needs only browser and (embedded) server