Team Algol

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Team Algol : Android Messenger app for DHIS2

Group members

  • Vladislav Georgiev Alfredov <vladisla@ifi.uio.no>
  • Tomáš Livora <tomasliv@student.matnat.uio.no>
  • Mathias Ciarlo Thorstensen <mathiact@ifi.uio.no>
  • Hans Fredrik Fahle <hansffa@student.matnat.uio.no>
  • Jiader Chou <jiaderc@ifi.uio.no>

Summary of Requirements

  1. Reduce data usage
    • Implement local data storage
    • Implement local data caching
  2. Redesign user interface to follow Material design guidelines

Architecture

  1. Android application
    • REST calls to DHIS2 for authentication and user information
    • XMPP messaging
  2. DHIS2 instance
  3. XMPP server

Project details

Details about how we will solve the task, and component-like view of it go here...

Rough Task-Component-Todo view:
0. Go over the libraries and decide which is worth using: (time to implement the functionality ourselves + testing vs the resource cost of using the library + going over the library interface
0.1 List of the libraries of question:


1. Rest interface/layer redesign.
1.1 Rest Session storage? Use Persistance layer or Cache layer ?
1.2 How would the rest calls hit/miss the cache?
1.3 Is the DHIS2 api satisfactory ?

2. Persistance layer.
2.1 Use the OrmLite library ?
2.2 Store data on app start/exit.
2.3 Provide interface for the Rest Layer

3. Cache layer.
3.1 If requested object in memory return it. If not use persistance layer to get it. + pre-fetch bulk data from disk? If not on disk return null, informing that it is not cached.
3.2 Load chunks of cache in memory ? What happens if the app runs on really old android device that has very little ram ?

4. Go over all the ui and redo it to use Material design. Maybe use butterknife for activities as well ?

5. Test the app. Test all the corner cases.

Work schedule

  1. Milestone (8th November)
    • Analysis of previous solution
    • Work planning according to the findings
  2. Milestone (22nd November)
  3. Milestone (4th December)

Group organization

  • Source code
  • Weekly meetings
    • Group 1 Tuesday 10:15 - 12:00
    • Possible second weekly meeting if needed
  • Instant messaging
    • Slack service for group comunication

Assignment text

Can be found at: https://www.uio.no/studier/emner/matnat/ifi/INF5750/h15/group-projects/messenger-app/index.html