Ushahidi has been used to help monitor elections in 4 different countries so far (India, Mexico, Afghanistan and Lebanon). Here are the categories that they set. Someone here might find this list helpful.
India (http://votereport.in):
- All CategoriesuForged Vote (FORG)
- Violence (VIOL)
- Voter Bribing (BRIB)
- Voting Machine Problems (EVOM)
- Other Irregularities (OTHR)
- Inflammatory Speech (HATE)
- Election Commission Interventions (ECIN)
- Voter Name Missing (MISS)
- What Went Well (WELL)
Mexico (http://www.cuidemoselvoto.org):
- Todas las Categorías
- Alteración de las urnas
- Padrón Incompleto
- Violación del voto secreto
- Falsificación de resultados
- Campañas en casilla
- Violencia
- Credenciales falsas
- Retención de credenciales
- Compra de votos
- Funcionarios irregulares
- Coacción sindical
- Otras irregularidades
- Coacción con programas sociales
Mexico (In English):
- All Categories
- Alteration of the polls
- Incomplete census
- Violation of the secret ballot
- Falsification of results
- Campaigns in box
- Violence
- False Credentials
- Retention of Credentials
- Vote buying
- Officials irregular
- Union coercion
- Other irregularities
- Coercion with social programs
Afghanistan (http://aliveinafghanistan.org):
- All Categories
- Vote Tampering: Vote buying, ballot box stuffing, fake IDs
- Disturbances: Violence, intimidation, harassment, roadblocks
- Defamation: Inflammatory speech, posters, billboards defaced
- Voting Access: Station closed, voting suspended, list altered
- Illegal Campaigning: in public places, polling booths, religious places
- What went well
- Campaign Events
- Citizens Speak
- Vote count
- Taliban
- Reconstruction
- Disaster
Lebanon (http://sharek961.org):
- All Categories
- Voting Access: Station closed, voting suspended, list altered
- Vote Tampering: Vote buying, ballot box stuffing, fake IDs
- Defamation: inflammatory speech, posters, billboards defaced
- Disturbances: violence, intimidation, harassment, roadblocks
- Illegal campaigning: in public places, religious places, polling center
- What went well
- Accredited Observers
- International Media
- Local Media
- Civil groups
- UNVERIFIED Citizen Reports
- LADE
- Other/Miscellaneous: Anything else