Step 1. Conceptualize an instrument triangulation strategy.

a. Identify the information you need and the groups from whom you need to collect it.
b. Identify sources of archived information.
c. Identify the types of instruments you will need for collecting new data.
d. Decide how you will triangulate to take optimal advantage of your instruments, and produce a triangulation table.

Step 2. Find and adapt instruments.

Step 3. Edit and pilot instruments.