Title: Presenting the IDEAL Estimating System Integrated Data Evaluation
1Presenting the IDEAL Estimating
System(Integrated Data Evaluation Analysis
Library)
A New Paradigm for Cost Estimating, Modeling, and
Data Sharing
August, 2002
Programming Contact Richard F Seel 985 Old Eagle
School Rd Suite 513 Wayne PA 19087 610-964-8200 di
ck_at_primetime.com
Cost Engineering Contact William G Hombach 200
South 20th St Suite B Purcellville, VA
20132 540-338-0601 wghombach_at_teamanalysis.com
2Quick Update
- Share Project Cost Model
- Share Cost Estimating Relationships/Cost
Assemblies - Share Project Cost Estimates
- Library Contributor Dictates
- Accessibility from General Public to Company
Personnel - Acquisition Charge if Any
- Parametric Cost Modeling Manual
- Parametric Modeling Standards
- Parametric Design Model (PDM) Standard Practice
- Integrated Cost Estimating Relationship (ICER)
Standard Practice - Standard Adjunct for the use of XML for Data
Definition Transmission and Application
3Central XML Library
- International Alliance for Interoperability (IAI)
has Joined Forces w/ the National Institute of
Building Sciences (NIBS) - IAI/NIBS has Stated an Enthusiastic Interest in
Sponsoring the Central XML Library - All data and models must follow the electronic
standards - The Library can be Virtual ? Links to Member
Servers Throughout the Country - IAI is Creating a Cost Work Group Starting w/
IDEALs XML Schema
4Central XML Library
- The Library is Organized
- All Data and Models Must Follow the Electronic
Standards - It Must be Profitable to Government and Industry
- There Must be Tight and Secure Access Control
- It Will Include a Data Quality Indicator
5IDEALs Range of Cost Estimating/Modeling
Methodologies
Parametric Models
6NASAs Use of IDEAL
- Environmental Restoration Liability Estimating
and Budgeting - Provides Remedial Project Managers (RPM) with
Easy-to-Use Estimating Tool - Library of ICERs, CERs, Assemblies, and other
Cost Data (Vendor Unit Costs) - Provides HQ w/ Historical Database for Budgets ?
Track Sites Cost History - Execution Plan
- Use ICERs for early Budgetary Estimates (Until
at Least FS) - Use Estimating Capabilities to perform
Government Estimates - Phase II
- Use Schedule Estimating Relationships (SER)
Capability - Tie into SAP (MS Project, Primavera) using XML
Interoperability - Phase III
- Build ESRI Active Maps into IDEAL to Run
Estimates from Map Objects
7Albuquerque ITRD Example(Innovative Treatment
Remediation Demonstration) Engineering Cost
Analysis Software Evaluation Report December 21,
2001
- Used Existing Navy VVA Cost Models (Integrated
Cost Estimating Relationships ICER) - Acquired Technical Data for New Technology
Modified Existing ICER(s) - Saves Significant Time to Edit Existing Models
- Built New Relationships and Included Cost
Assemblies and/or Unit Cost Databases (e.g., R.S.
Means) - Built a Model not just an Estimate
- Saves Significant Time to Run Models vs
Re-estimate
8Albuquerque ITRD ExampleEngineering Cost
Analysis Software Evaluation Report December 21,
2001
9Albuquerque ITRD ExampleEngineering Cost
Analysis Software Evaluation Report December 21,
2001
Table 4. Software Evaluation Matrix
IDEAL is the only tool that is being structured
in an open architecture format using Extensible
Markup Language (XML)
10Albuquerque ITRD ExampleEngineering Cost
Analysis Software Evaluation Report December 21,
2001
- Quotes
- IDEAL provides a set of cost estimating
relationships on common remedial actions and
supporting site activities. - IDEAL provides the user with access to this
library and the ability to document their own
unique considerations and compile the model or
estimate in a single system. - In other words, the IDEAL system takes advantage
of existing work while providing the user the
ability to insert unique cost models into the
logical hierarchy utilizing the common cost
variables already defined eliminating repetitive
input.
- The IDEAL system appears to do an excellent job
providing the estimator with the ability to
formally document cost research by providing a
way to integrate the information. - IDEAL provides the ability to organize and
manipulate information obtained from published
databases such as R.S. Means, catalogs, market
research, and the cost item quantity
relationship.
11Use of Spreadsheets
- Advantages
- Free Form
- Can Develop Equation and Document on the Fly
- Can Include Complex Relationships between Cost
Elements - Not Constrained by Parent/ Child Relationships
- Intuitive to the Creator - no Programming Skills
Needed
- Disadvantages
- No Apparent Conventions
- Can be Difficult for user to Understand
- Easily Broken by User
- Spreadsheets become Volatile when too Large
- Operates out of Memory not Storage
- Security and User Interface is a Problem
12Use of Database
- Advantages
- Can Handle Large and Complex Data Sets
- Can Use Standardized Unit Price Databases
- More Robust Less Likely to Break
- Provides a more Intuitive User Interface
- Better Security
- Disadvantages
- Referential Integrity
- Requires Error Checking and Maintenance
- Requires Programming
- Locked into a Parent/ Child Relationships
- Vertical Relationships
- Difficult to Visualize Relationships within Data
13IDEAL Estimating System
You Can Have Your Spreadsheet Database
Too!! With the advantages of both and
disadvantages of neither
- Uses Spreadsheet Interface
- Develop/Maintain Cost Models in Comprehensive
Development Environment and/or Supporting
Spreadsheets
- Free Form
- Can Develop Equation and Document on the Fly
- Can Include Complex Relationships between Cost
Elements - Intuitive to the Creator - no Programming Skills
Needed
- Can Handle Large and Complex Data Sets
- Can Use Standardized Unit Price Databases
- More Robust Less Likely to Break
- Provides a more Intuitive User Interface
- Better Security
14IDEAL Estimating System
Initial Screen ? Required Parameters
15IDEAL Estimating System
Next Screen ? Secondary Parameters
16IDEAL Estimating System
Default Tree View ? by Technology
17IDEAL Estimating System
Navy CER Library
18IDEAL Estimating System
2 Windows Opened and Tiled Windows ? Library,
Model, Estimate, or Data Can Copy From One to
Another New Branch in Tree Looks to Parent for
Data
19IDEAL Estimating System
Forms Dialogue used to Edit Parameters in
Worksheet