HOCHTIEF
CORPORATE HEADQUARTERS
Integrated Contract Management
and Monitoring System (ICMMS)
Jan Reinhardt
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HOCHTIEF
CORPORATE HEADQUARTERS
Presentation
Progress Monitoring
ICMMS, Progress Monitoring with wearable
computers
ICMMS, state of the pilot projects
Wearable computers on construction sites
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HOCHTIEF
CORPORATE HEADQUARTERS
Problem Definition
Construction projects have repeatedly problems
meeting milestones on time
Insufficient information on the project state.
Difficult communication between construction site and
offices
Different people have different sources of information
Catch up at the end of the project
Inefficient use of resources
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HOCHTIEF
CORPORATE HEADQUARTERS
Progress Monitoring
What is Progress Monitoring ?
Controlling of the time schedule of a construction
project
Early discovery of unknown problems
Close control over the subcontractors works
=>Having better information resources to make better
decisions
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HOCHTIEF
CORPORATE HEADQUARTERS
How is Progress Monitoring done?
Progress Controller goes to the construction site
Construction progress is marked in layouts of the project
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HOCHTIEF
CORPORATE HEADQUARTERS
How is Progress Monitoring done?
Back in the office, the information from the layout is
transformed in a percent – progress figure
The construction progress is drawn in a progress diagram
Schematic layouts show the construction progress
Excavation complete
Pipelaying complete
Backfill complete
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HOCHTIEF
CORPORATE HEADQUARTERS
What are the problems implied with traditional
Progress Monitoring?
Collection and processing of data is time consuming
Done by hand
Inaccuracies
Process has to be repeated every week
=>Inefficient
Many construction projects do not set up a Progress
Monitoring System
=> Result: Unknown delay of the construction progress
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HOCHTIEF
CORPORATE HEADQUARTERS
New approach:
Can we improve Progress
Monitoring if we use
Wearable Computers?
How simple can a User
Interface be?
Can we input the data we
need efficiently and
accurately?
Can we input data using
speech?
Rapid Prototyping
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HOCHTIEF
CORPORATE HEADQUARTERS
New approach:
A schematic layout is linked with a time schedule
The setup of the system has to be done once at the beginning of the
project
The weekly update of the construction progress is easy
Progress diagrams and progress drawings are instantly available
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HOCHTIEF
CORPORATE HEADQUARTERS
Devices for data input on site:
Wearable Computer
Powerful PC (Pentium III)
Easy to carry (belt worn)
Unobtrusive / robust
Vendors:
Xybernaut
Futjitsu
Site personnel had no
problems to handle the
computers and use ICMMS
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HOCHTIEF
CORPORATE HEADQUARTERS
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HOCHTIEF
CORPORATE HEADQUARTERS
What is behind the User Interface ?
Project schedule has to be provided
Drawing has to be decomposed into single Building
Elements e.g. Wall, door, floor, stair
The Building Elements have to be linked with Activities
Progress Progress Progress
Project schedule
Geometry model Time
Activity - Element -
Modell
Progress Progress Progress
Report Report Report
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HOCHTIEF
CORPORATE HEADQUARTERS
Creating a Progress Monitoring Model
Geometry Model Project Schedule
Array of: Drawing Elements Array of: Activities
Element ID Activity ID
Geometry data Name
Color Start
Finish
Predecessor
Successor
.....
Mapping of Activities to
Elements
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HOCHTIEF
CORPORATE HEADQUARTERS
System architecture
Office
Clients
Central
Database
Server periodical Field Client
synchronisation
Wearable Computer
Internet-/
Intranet
Server
Components for:
The field
Web Clients
www Browser
The office
The www
XML – based data transfer
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HOCHTIEF
CORPORATE HEADQUARTERS
Output of ICMMS
Progress Diagram for: Highlighted drawings
The overall project Late, due, early,
Subparts of the project under way, finished
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HOCHTIEF
CORPORATE HEADQUARTERS
Projects
1. Shopping Mall in Dresden
15 Million USD project
20 Shops, 2-story and 5-story
building
Ambitious time schedule (12 month)
Objectives:
Early identification of problems
Documentation of the
construction progress towards
the client
Better supervision of
subcontractors
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HOCHTIEF
CORPORATE HEADQUARTERS
Projects
2. 58- family homes in Duesseldorf
15 Million USD project
Ambitious time schedule
Project was given to a
subcontractor
Objectives:
Control of the time schedule
Invoice controlling (e.g. what
share of the electrical
installation has been
completed)
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HOCHTIEF
CORPORATE HEADQUARTERS
Upcomming project
45 storey building
Simple floor layouts
Difficult to oversee
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HOCHTIEF
CORPORATE HEADQUARTERS
First results
Setup of the Progress Monitoring System is relatively time
consuming
Weekly update of the system is relatively quick and easy
Update can be done by external, unskilled personnel
Construction progress becomes more transparent
Time for Progress Monitoring : now 1/3 of time (estimation)
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HOCHTIEF
CORPORATE HEADQUARTERS
Next steps:
Administration of change orders and
rework
A 15 Million USD Project has on
average 1000 rework orders
Every rework order has to be
administered
States:
Recorded
Subcontractor notified
Works finished
Accepted by owner
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HOCHTIEF
CORPORATE HEADQUARTERS
Palmpilot – useful on the construction site?
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HOCHTIEF
CORPORATE HEADQUARTERS
Further fields of research
Document Management System
Mobile project database
Communication
Positioning
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HOCHTIEF
CORPORATE HEADQUARTERS
Thank you!
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