GeneralisedPDTs

Data relatedissues

Incorrect datatransformation/conversion

TruncationExtra data - "assumeddefaults"Wrong formats

Incorrect data migrationLoss of dataIncorrect defaults

Inability to handle largevolume

Size of packet#Records#Files

Inability to handle highrates

Inappropriate validationFormat/syntaxBoundaries/limitsData types

Violation of data integrity

Concurrent datamodificationInappropriate datasecurityDuplication of data

Environmentrelated issues

Incorrect appconfiguration

Insufficient resources

Memory related

Disk related

Bandwidth related

OS resources related

App. SW related

Leakage of resources

Hardware relatedMemory

Disk

Software relatedOS related

Connections

IPC

App SW related

Wrong versions ofsupporting software

Older versions

Newer versions

Inappropriate patchesUsage relatedissues

Progress ofaction not visible

Difficulty inusage

Too many stepsIssues inunderstandingwhat to do

Incorrectsequence ofusageUnable torecover fromincorrect useAccessibilityissues

Steps to performnot in line withtypical user'sdomain

Violation of pre-conditions

Structuralissues

Incorrect data usage

Using stale data e.g.cached data

Incorrect transactionalbehavior

Incorrect concurrentdata manipulation

Inefficient codeTime consuming

Missing eventsLosing data

Resource hungry

Potential non-terminating code

LoopsRecursion

Assumption of limits

Data size limits - buffersize, data size ...

Environment limits -Free space, memoryavailability...

Incorrect pre-conditions/system state

Time related issuesSynchronizationRace condition

Inappropriateerror/exception handling

Incorrect dataEnvironment exceptions

Poor timeout handlingInterface noncompliance

Businesslogic relatedissues

Missing conditionsIncorrect pre-conditions

Conflicting conditionsIncorrect sequencing ofconditions

Values for conditionsincorrect