Categories

Back to ROSE

We only said goodbye with words
I died a hundred times
You go back to her
And I go back to…..
I go back to us

Hello World!

Yes, I’m back. Sith Lords are not as powerful as they used to be, so kicking them out of the galaxy has been easier than expected.

Last week end and on Monday, I worked a lot on the Drop Scanner app. I had to learn many things (Scala, Android, Scaloid) and to dive in the code Lauriane had written. When I began to understand how the code was working, I changed a little bit the interface. No breakthrough, but this helped me to put my hands in the code. There are still a lot of things to improve about the UI and the UX. Also, some bugs remain and have to be fixed as soon as possible!

Yesterday, I also started to think about the memory organization. We will have a Flash memory, which means that we have to spread the write requests across the pages not to wear them too fast. So I began to search for existing Flash file systems, in order to take some good ideas. Especially, I found UBIFS and JFFS2 which are popular Linux flash file systems. In the end, I designed a brand new flash file system, called DropFS (stands for Deluxe Rather OPerational File System). We still have to think about a few issues, but the global architecture looks solid. I will explain the whole design in a few days with gorgeous schematics. Stay tuned!

Finally, we decided to think again about our use cases, and clarify them in order to know what we really need to implement in our drops. I was assigned to think about the Cairn use case (the one for hikers). I wrote a little text explaining how the user would use the app, but above all I made an interactive mockup of the app, showing the different screens and interactions. Check it out!

May the force be with you!