| 23 | === Constraints === |
| 24 | * System must be easy to use as staff in emergencies cannot receive extensive training (there is often rapid scale-up of both Internationals with experience from disparate organisations & locals who sometimes have realtively little experience of IT at all) |
| 25 | * Field sites often have poor access to IT support (it could be a day's drive away or available only via expensive SatPhone) |
| 26 | * Field sites' Internet access is often expensive (BGAN: $5/Mb) or highly erratic (local providers, power problems) |
| 27 | * Solution must be accessible to Windows users (although could be delivered using a Virtual Machine) |
| 28 | * System needs to be easy to backup to a single file (which could be a .zip of a .sql dump) |
| 29 | * Some data can be sensitive , so the system needs to be secure |