1. 2015-09-141 These materials are prepared only for the students enrolled in the course Distributed Software Development (DSD) at the Department of Computer Science and Engineering, University of Mälardalen, Västerås, Sweden and at the Faculty of Electrical Engineering and Computing, University of Zagreb, Croatia (year 2003/2004). For all other purposes, authors’ written permission is needed! The purpose of these materials is to help students in better understanding of lectures in DSD and not their replacement! NOTICE!

2. 2015-09-142 Selected Topics in Software Engineering - Distributed Software Development

3. 2015-09-143 The Interactive Museum Team Presents: Interactive Museum Project Current state

4. 2015-09-144 Introduction Current status for : –Mote network –Main Application –PDA Application –Web Application –Database Project status update What we will talk about?

5. 2015-09-145 Mote network Main concern: control of the radio range –Dynamic motes: small (0.5 m – 4 m) range How to achieve such small range? –Static & base: large ( > 30 m) Solution: abilitiy to control mica2 RF Transciever Test results: minimal ranges –0.4 – 0.5 m –3.3 – 3.9 m

6. 2015-09-146 Mote network modeling UML is inadequate Each object in mote network is microcontroller based computer –Preemption (non-deterministic state switching, even when in transition between states) –composite states modeling Single mote can be in one or more states at a time Whole mote network also State of all motes determines state of network

7. 2015-09-147 Mote network modeling –Overall concurrency / independent execution of every network entity Radio communication between motes is lossy by nature Solution for model representation: Petri Nets

8. 2015-09-148 Mote network as Petri net

9. 2015-09-149 Mote network - status Current state: –Prototype of dynamic mote –Static mote prototype –Base mote (GenericBase from TinyOS library) –First functional version of mote network to application bridge (for C#)

10. 2015-09-1410 Pocket PC Emulator –Simulates the PDA through VS 2005 –Works perfect with the PDA Application PDA Application

11. PDA Device –Upgraded to.NET Compact Framework 2.0 –Working WiFi connection using WPA-PSK with TKIP encryption –The PDA Application works perfect 2015-09-1411 PDA Application

12. 2015-09-1412 PDA Application Connections –Connects to a PDA Server (Windows Service) –Interacts with a Web Service –(Maybe video streaming in the future) PDA Application Functionalities –Bookmarks –History –Text/Image and maybe video PDA Application

13. PDA Server Windows Service Functionalities –Identify visitor PDA to inform of available exhibit information Communication –Connects to PDA through TCP/IP streams –Connects to database through Web Services –Messages from Mote Server by RPC 2015-09-1413

14. PDA Server – Example Message recieved when a visitor reaches the proximity of an exhibit Dynamic Mote ID and Static Mote ID Consults the database Alerts the PDA of available information on the viewed exhibit 2015-09-1414

15. 2015-09-1415 Web Service Database Requests –Supply the interaction with the actual database –The central point of data communication (will be used by the main application, Web application and the PDA) Response type –From the beginning we had objects, now changed to DataSet

16. 2015-09-1416 Web Application

17. 2015-09-1417 Web Application (logged in)

18. 2015-09-1418 Based on ”Relational Entities” Database Design –The Session –The Visitor – A central “Modification Table” –The Exhibit –The Employee / Admin –The PDA

19. Exhibit Entities

20. Visitor Entities

21. Session Entities

22. PDA EntityEmployee Entity

24. Project Status Communication –Group skype meetings – twice a week –Individual meetings (any time, any day) Skype E-Mail –Posting general information FER Web Google group Forums –Etc. (mobile or land line phone,...)

25. Project Status Comments / Experiences / Problems –No problems Came to agreements for all discussed topics –Very pleased that everything is going as planned (for now... ;) ), well except project cost Project Cost Current Planned Cost6200 € Current Actual Cost7900 € Planned Project Cost 16750 € Forecasted Project Cost 18450 €

26. Project Status Overall project status: on track Time schedule: on track

27. Project Status Activity plan: on track FinishedNext weekFuture

28. 2015-09-1428