Tree Inventory PDA Utilities: An Introduction

Data Collection Two options: Paper forms Pocket PC

Paper-based Inventory UFORE, STRATUM, MCTI, SDAP Final analysis & reporting depends on quality field data

Manual data entry into i-Tree Database Format

Paper Advantages Low up-front cost No technical training No batteries Paper doesn’t break when you drop it

Paper Disadvantages Error-prone Decipherment QA harder Can be slower in field Much slower in office

PDA-based Inventory Utilities Created keeping in mind users who have little familiarity with field data collection For project managers who want to minimize time-consuming data entry, QA/QC and database formatting

PDA-based Inventory Application compatible UFORE, STRATUM/MCTI, SDAP Push button data transfer Two Interfaces Desktop Pocket PC

PDA to Desktop PDA to Desktop Data Transfer UFORE

PDA to Desktop Data Transfer STRATUM/MCTI

PDA to Desktop Data Transfer SDAP

PDA Advantages Fast data collection Low error rate No data entry required Data transfer automated

PDA Disadvantages Up-front equipment expense Training required Require maintenance/care Charging batteries Units not protected from elements Water, Dust, etc.

Demonstration: Desktop Configuration PDA synchronization Using the PDA Utility

Choosing a PDA Compatible only with Pocket PCs Alternative OS (Palm, BlackBerry, Psion, PocketLinux, etc.) are not compatible. Windows Mobile 2002 or 2003 operating systems (OS). Mobile 5.0 operating systems Other considerations Weatherized models Back-up media slot Protective slip covers or carrying cases High capacity batteries Cost ($ or more)

In-Field QA/QC Hot Check – one team member or someone dedicated to QA/QC checks 3% of ongoing data collection Cold Check – data re-measured by the QA/QC specialist, who meets with and compares data with the team Blind Check – a sample unit is re- measured by another team or QA/QC specialist. Data is compared, but without the presence of the initial team.

DATA TRANSFER QA/QC Set up a system for nightly transfer that works for your volunteers or project Scan the data for errors each night Reset and import from next PDA