Zusammenfassung der Ressource
Direct & Indirect Data
- Direct
- The source and
collection method is
know and verified
- The exact data required can be collected
- Can change the data being
collected in response to answers
- You only gather as much or as little as you need
- You may be able to sell the data for other purposes.
- May not get a large range of data
- Data may not be available-location/time
- Data gathering may take
a long time to collect.
- It may involve having to purchase
equipment such as data loggers and
computers.
- Indirect
- Large range of data
available that could not have
been collected directly
- Data can be available from
different locations and time
periods
- Analysis might already have
been complete on some of the
data
- Takes less time to gather than original (direct) data.
- It may be cheaper to obtain than gathering original data
- Archiving ensures that all the data you
have collected is available for uses you
have not considered just yet.
- Do not know if any bias was
placed on the collection
- Cannot be certain of accuracy of the
recording of data
- May not have all the information about how, when and
where it was collected to make a valued opinion on its
usefulness
- If the information was not originally collected, may
not be able to get hold of it
- If you have to buy the data from a specialist company then it may be
more expensive that collecting it yourself.
- There may be only a small part of the data needed so you have to extract
what you want from a large data set.
- ADVANTAGES
- DISADVANTAGES