Hey @Mitou ! 
Thanks @Gassim for sharing the metadata package links. I’m on that team and want to share a few more resources.
The 2022 Annual Conference featured several implementations of DHIS2 for NCDs, including two on cancer case trackers which may be of interest. This presentation included:
- In Peru, a tracker for Breast Cancer Patients in Trujillo which you can read more on here.
- In Rwanda, a cancer registry program in DHIS2 was developed and deployed, including an custom app to export these data into CanReg5 format for further analysis. In collaboration with CARPHA and IARC, Jamaica has recently adapted this same oncology module for reporting to their national cancer registry.
Other countries have independently developed cancer case registers in DHIS2, including Mozambique, Zimbabwe, and Maldives, the last of which will present at the upcoming Annual Conference. HISP UiO are now in the process of working with WHO-IARC to analyze the common business requirements of these systems, to hopefully develop an implementation toolkit for cancer registries.
If you would like we can have a short call to review the available resources which may be a useful starting point for your project in Tanzania. Ive sent you a DM with my email.