<s>
Definitive	B-General_Concept
diagnostic	I-General_Concept
data	I-General_Concept
are	O
a	O
specific	O
type	O
of	O
data	O
used	O
in	O
the	O
investigation	O
and	O
diagnosis	O
of	O
IT	B-General_Concept
system	I-General_Concept
problems	O
;	O
transaction	O
performance	O
,	O
fault/error	O
or	O
incorrect	O
output	B-General_Concept
.	O
</s>
<s>
To	O
qualify	O
as	O
Definitive	B-General_Concept
Diagnostic	I-General_Concept
Data	I-General_Concept
it	O
must	O
be	O
possible	O
to	O
correlate	O
the	O
data	O
with	O
a	O
user	O
's	O
experience	O
of	O
a	O
problem	O
instance	O
,	O
and	O
for	O
that	O
reason	O
they	O
will	O
typically	O
be	O
time	O
stamped	O
event	O
information	O
.	O
</s>
<s>
Log	O
and	O
trace	O
records	O
are	O
common	O
sources	O
of	O
Definitive	B-General_Concept
Diagnostic	I-General_Concept
Data	I-General_Concept
.	O
</s>
<s>
Generally	O
,	O
statistical	O
data	O
ca	O
n't	O
be	O
used	O
as	O
it	O
lacks	O
the	O
granularity	B-Operating_System
necessary	O
to	O
directly	O
associate	O
it	O
with	O
a	O
user	O
's	O
experience	O
of	O
a	O
problem	O
instance	O
.	O
</s>
<s>
RPR	O
:	O
A	O
Problem	O
Diagnosis	O
Method	O
for	O
IT	B-General_Concept
Professionals	I-General_Concept
.	O
</s>
