| Wessex Estimating
Estimating using Wessex
utilises analytical
estimating procedures,
i.e. building up rates
for unit items of work
from a typical Standard
Method of Measurement
and then applying these
rates to quantities
of the work items in
order to calculate the
cost of completing each
item and, ultimately,
the grand total of works.
This type of pricing
could be used to price
a Bill of Quantities.
It may also be used
to price from Specifications
and Drawings.
Estimating by computer
differs from pricing
manually in that we
take components (Resources)
required for each work
item and combine them
in the correct proportions
to build the cost to
complete one unit of
the item being priced
(Unit Prices). We then
multiply this rate by
the quantities of units
to be completed to achieve
the cost of the item.
Wessex Estimating can
give us dramatic advantages
over pricing manually.
Here are just some of
the advantages:
1. Unit Prices are
worked up for you. You
simply input or amend
the prices of the Resources
being used and the result
is calculated automatically.
2. Using manual take
off or digitiser the
quantities are calculated
for you.
3. Extending all calculations,
totals for items, pages,
sections, Bills and
the Estimate is carried
out with 100% accuracy.
4. Wessex can take
your data and analyse
the information in many
different ways, with
no extra effort on your
part.
5. Existing Estimates
can be copied forward
to generate priced work
for similar jobs, thus
avoiding repeatedly
keying in the same information.
Wessex Digitiser
Measurement using Wessex
digitiser we simply
digitise the shapes
and the result is calculated
automatically.
1. Quantities are worked
up for us. We simply
digitise he shapes and
the result is calculated
automatically.
2. Difficult or abstract
shapes are measured
simply and accurately.
3. “Unknown”
drawing scales can be
evaluated with ease.
4. The Wessex Digitiser
overlay template can
be used as a replacement
for the keyboard. This
avoids repeated movement
from the Digitiser to
the keyboard during
take off.
Our Wessex digitiser
system comprises an
electromagnetic digitiser
tablet (board) or a
sonic desk-top control
box. It is connected
via a cable to either
the Serial (RS232) or
Parallel (printer) Port
in the back of the computer.
Measurements are taken
by clicking the digitiser
pen or cross-hair curser
on the drawing within
the active area of the
digitiser. Each click
sends a signal to the
computer which is mapped
as a co-ordinate of
the take-off and converted
to a dimension using
a pre-set scale.
The Template Overlay
is a Perspex or paper
“keyboard”
attached to the digitiser
surface. It contains
alphabetical, numeric,
function, movement,
enter and escape keys
which, when clicked
on with the pen or curser,
mimic the equivalent
keys of a standard keyboard.
The template overlay
also contains shapes
which are used to identify
the type of shape to
be digitised. When the
pen or curser is clicked
on one of these, the
computer knows how to
interpret the co-ordinates
subsequently received
from the board.
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