UC BerkeleyCS160 Spring 2013

User Interface Design

mSpray Annie ShinBrent Batas

Daniel WuJeff Butler

Helping the fight against malaria in South Africa

SolutionmSpray logs the frequency and area distribution of anti-malarial spraying, and sends this data to the cloud. This provides researchers with unprecedented data which they can use to evaluate the effectiveness and safety of chemical sprays. This will also help prevent greater outbreaks of malaria by more effectively assigning future spray locations.

ProblemMalaria is rapidly growing resistant to traditional pesticides. To combat this endemic, South African governments are spraying DDT, a harmful, persistent chemical banned in the US. In order to find a safer alternative, researchers need data on chemical sprayings, but this data is very difficult to obtain.

To identify themselves, users hold up their identification badge, which has an RFID, to the back of the Android phone.

Google spreadsheet containing data from recent sprayings. Each row is a spray at a certain GPS location, and each column contains different information (such as number of rooms sprayed).

Map display of sprayings recorded by mSpray.

Design EvolutionmSpray’s design changed over time to break down the cultural and language barrier between application and users. We designed our app to be as simple, clear, and error-proof as possible with culturally relevant pictures, large, colorful buttons, and a linear path through the app.Final PrototypeAfter users go through the app by answering questions regarding their spraying at a particular location (coordinates recorded by GPS), mSpray automatically fills out government forms and uploads them to the cloud. Authorized people may view the data from a Google spreadsheet and see a map with pins dropped at spray locations.

Screenshots of our application: (a) Screen to begin reporting a new spray, (b) Screen to enter data regarding a spray, (c) Confirmation screen

Target UsersWorkers in Limpopo, South Africa will use mSpray while spraying homes with DDT, Fendona, or K-Othrine. Data collected by mSpray will be studied by researchers and also used by government officials to keep track of work done by employees (payment purposes).