Tree Inventory PDA Utilities:An Introduction

Data CollectionTwo options:Paper forms Pocket PC

Paper-based Inventory

UFORE, STRATUM, MCTI, SDAPFinal 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 InventoryApplication compatibleUFORE, STRATUM/MCTI, SDAPPush button data transfer

Two InterfacesDesktopPocket PC

PDA to Desktop PDA to Desktop

Data TransferData Transfer

UFOREUFORE

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 PDACompatible 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 considerationsWeatherized models Back-up media slot Protective slip covers or carrying cases High capacity batteries Cost ($200-400 or more)

In-Field QA/QCHot 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/QCSet 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