Digital Data Collection Tablets Joost van Heerwaarden N

Digital Data Collection Tablets Joost van Heerwaarden N 2 Africa Research & Data Coordinator joost. vanheerwaarden@wur. nl ILRI-N 2 Africa Awareness creation on Data Tools and Data Refinement Workshop 18 August, 2015, ILRI Campus Addis Ababa, Ethiopia

Data collection in N 2 africa

N 2 Africa “putting nitrogen fixation to work for smallholder farmers growing legume crops in Africa” What works where, why and for whom? How to tailor technologies? ?

N 2 Africa-led dissemination Common technologies Diagnostic trials Constraints biophysical Demonstration trials Best-bet Biophysical + management Researchermanaged agronomy (specialised agronomy trials, non responsive soils) Adaptation trials Best-fit Biophysical + management + farmer interventions Technology Learning

Evaluating performance on farm Adaptation trial Demonstration trial Adaptation trial Adaptation trial

ADAPTATION DEMONSTRATION DIAGNOSTIC FOCAL trials Quantity of data Number of trials Training / Capacity building

Focal adaptation trials

N 2 Africa and data M&E / Research D 2 R: Adoption /Adaptation D&D Demonstration Learning -> Feedback loops

Data delivery and feedback

Some problems with paper. . . Collection + Centralisation + Capture + Transfer = A rather long time Inconsistency ≠ inconcistensie 36 N 0663880, 153548 = Where exactly?

Advantages of electronic data collection - Speed of delivery (fast turnover) - Potential for improved accuracy and consistency - Incorporation of GPS, media

Disadvantages of electronic data collection - Management and administration of forms - Need for some technical know-how and infrastructure - Tablets break, get borrowed, rained upon etc.

Managing forms. .

Open Data Kit “A free and open-source set of tools which help organizations author, field, and manage mobile data collection solutions. ” Build forms Collect data A B C D Aggregate data E

Preparations Set up ODK aggregate on a server Get ODK collect

Build Design XLS form Convert to XML Upload to server Download to tablet

Collect

Collect

Aggregate

Demonstration

Useful websites http: //opendatakit. org/xiframe/ http: //xlsform. org http: //odk. n 2 africa. org: 8080/ODKAggregate/Aggregate. ht ml on tablet (collect): http: //odk. n 2 africa. org: 8080/ODKAggregate Username: n 2 africaethiopia Password: Opia/401

N 2 A OWN PLOT LEGUME