Page 120 - Pipeline Pigging Technology
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A computerized inspection system
ally to assign a correlated PK value to the observation which links the same
event over a number of inspections.
Maintenance data
The following information is held for each maintenance activity that is
carried out on each pipeline:
details on scope of maintenance, dates, contractor and equipment
used;
description of work performed.
In particular for grout-bagging operations the following additional infor-
mation is stored:
details of supports;
longitudinal profile of free span after stabilization.
System design objectives
The major design objectives for CIS-PIPELINE were as follows:
(i) To store and maintain large quantities of data in a form which
facilitates easy access
The system enhances the storage, retrieval and analysis of inspection data
gathered during the annual inspection of the pipelines. It supports batch
input, from magnetic tape, of data provided by the inspection contractors, as
well as facilities interactively to enter and amend any data item held on the
database from one of the terminals.
(ii) To provide a system which would offer significant support to users
who are non-computing professionals
The system gives users access to functions via a series of menus. All screen
displays used in the system have standard header and trailer areas. These give:
basic identifying data (screen reference, pipeline name, functional category,
etc.), indicate the functions keys available and a line is reserved for messages.
Help facilities are available to assist in the selection of valid codes for library
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