Dynamically Clean Shared Data with Filtered Datasets
A filtered dataset is a subset of submitted data that satisfies certain conditions set by the user. Filtered datasets are helpful when you need to share a dataset with other users, yet want to keep certain fields or records private that are repetitive, irrelevant or sensitive. Suppose you carried out a baseline survey on households
Streaming Ona Data with NiFi, Kafka, Druid, and Superset
A common need across all our projects and partners’ projects is to build up-to-date indicators from stored data. We have built dashboards showing project progress and other stakeholder-relevant information in our malaria spraying project (mSpray), drought response monitoring project in Somalia, and electronic medical record system (OpenSRP). Currently we create indicators on an ad-hoc basis,
An inside look at Zambia’s new electronic immunization registry
The following was originally written for and posted on the BID Initiative blog. It provides an update on the Zambian electronic immunization registry we’re building with Path, which we introduced in a previous post. Photo: Ona. Zambia’s paper-based immunization reporting systems of the past, are time-intensive and often result in longer wait times for patients. Back in
New Help Site Launched
We are excited to announce our new help site, which makes finding answers faster with improved search functionality and article categories. The new site lets you vote on whether articles are helpful so we can improve the content. Please note, you may experience 404 errors if you use links to the old website — in that
Ona at the 2017 ICT4D Conference
Ona will be at the 2017 ICT4D Conference in Hyderabad on 15–16 May 2017. Erick Ngwiri, Director of Client Solutions, will be speaking about Empowering organizations worldwide with collective intelligence. His talk will focus on how Ona uses geospatial check-ins to improve the targeting and delivery of IRS malaria spraying in over 120,000 homes in
Improve Sampling Accuracy with Weighted Random Selections
Every data collector eventually runs into this issue at some point — you know the makeup of your population as a whole, but you only have access to a small group that isn’t representative. For example, you know that as a whole, the population pizza topping preference for plain cheese:pepperonni is 1:1. However, you only have access
Redirecting HTTP traffic while using AWS Target Groups
A few months ago we received a support query from a user who was unable to log in. We couldn’t replicate the issue and they weren’t able to work with us to get it fixed. We concluded that they were doing something unique and had ended up fixing it from their end somehow. Fast forward
3,725 Health Posts Mapped in Jakarta in a Massive Grassroots Empowerment Effort
Health posts in Jakarta mapped by PKK. We caught up with Renold Lim, a volunteer at Jakarta-based grassroots organization Pemberdayaan Kesejahteraan Keluarga (PKK), which aims to improve health services to the urban poor by sharing data about the realities of street-level health services. It is a colossal effort. Given that the city of 10 million
How to Increase Security by Encrypting Form Data
Encrypting form data incorporates an added level of security by making your data private, unreadable, and tamper-proof. This security mechanism can help you meet strict data privacy requirements sometimes set by ethical review boards for research studies. For example, you should encrypt data if you have surveys on highly sensitive topics like domestic violence and
Nairobi GNU/Linux Users Group Meetup on March 4th
Come join the Nairobi GNU/Linux Users Group meetup on Saturday, March 4th at the Ona Kenya office from 4PM to 7PM EAT. Ona engineer, Njagi Mwaniki will be giving a 30-minute talk on a bot he made for the group’s IRC channel using Haskell. His talk will be followed by an open discussion session. Snacks will be