| Targets/sources | Techniques | Tools |
| Service providers, maintenance and incineration agents | Survey by questionnaire | Questionnaire |
| Department Directors, Managers and Supervisors | Interview | Guide |
| Patients and attendants | Survey by questionnaire | Questionnaire |
| Infrastructure, service environment, waste storage, waste incineration, septic tanks, cesspools, latrines | Observation | Observation grid |
| Texts governing waste management | Literature review | Documentary exploitation sheet |