INTERNATIONAL  TELECOMMUNICATION  UNION

		     ITU-T RECOMMENDATION SUMMARY


Rec. No. : E.503

Title :	Traffic  measurement  data  analysis

Study Group : II - Network Operation

Version : Révisée

Date of adoption : 1992

Notes :	


The aim of traffic measurements is to provide data that can be used by 
an Administration for planning, engineering and managing its network. 
The resulting measured data can be used to support various activities 
as stated in Recommendation E.502. In order to reduce the amount of 
data transfer and off-line processing, the exchange or operations 
system can be used to make preliminary analyses for purposes of:

	-   eliminating unnecessary data values;

	-   replacing missing or wrong values in an approriate way;

	-   performing simple calculations on the values of the basic 
	    measurement entities to derive characteristic parameter 
	    values of the traffic;

	-   storing some measured or calculated values, in particular, 
	    traffic data records;

	-   producing appropriate user friendly report printouts.

For each measurement object, there is a data record in which a certain 
number of traffic values are stored. Also, some calculated values, 
e.g. moving average, can be stored and updated in this data record 
area.

The internal functions of the analysis are not specified in 
Recommendation E.503. They depend on the requirements for the output 
results which are specified by the Administration. An acceptable 
method may be to collect and store the data in real time, either in a 
temporary data base file or directly in the traffic data record, and 
later perform the calculations and report printout during periods of 
low exchange processing activity. Alternatively, the records can be 
transferred to an off-line system for processing, to reduce the load 
on the exchange.



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