Adli Khalaf - Design Basis Scoping Paper

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Design Basis Scoping Paper

Adli S. Khalaf Facilities Planning Department

Saudi Aramco



December 3, 2007 SAWEA WORKSHOP - 2007 2

Outline

Introduction

Definition

Purpose

Involved Organizations

DBSP Content

Examples

Development ProcessConclusions

Questions




Six Phases of a Project

1. Enthusiasm

2. Disillusionment

3. Panic

4. Search for the Guilty

5. Punishment of the Innocent

6.Praise and Honor the Non-Participants




Elements of Project Success

Understand Business Objectives

Strategy for Project GoalsRisk and Uncertainty

OBJECTIVES

The

Project

TEAM PROCESS

Customer Focus

Project Team

Contractor

Pre-Project Planning

Project Execution Plan

Controlling Cost/Schedule




Definition

DBSP is a contract between the

signatories to further develop the

proposed project in a manner that

will ensure that the project’s statedBusiness Objective is achieved in a

cost effective manner.




Purpose

The purpose of the DBSP is to:

Define the main elements of the project scopeof work (What will be built)

Define the limits of the project scope of work

Provide the design contractor definitiveinformation to independently develop the

project scope

Provide the Construction Agency the

information to effectively plan and execute theproject

Provide a cost estimate (+/-40%) for budgeting

purposes




Involved Organizations

Planning Organization

Proponent or End User

Construction AgencyEnvironmental Protection

Organization

Estimating




Planning OrganizationLeads the DBSP preparation effort

Clarifies the definition of the project’s Business

Case

Insures adequate justification for scope

elementsDescribes in broad terms the facilities to be

provided

Controls scope

Describes specific studies to be preformed

during Preliminary Design

Issues DBSP for review and approval




Proponent

Provides supporting information

Reviews scope elements

Provides support to establishinterface points

Signs DBSP for endorsing project

scope




Construction Agency

Reviews schedule

Reviews scope elements

Reviews constructabilityReviews study requirements

Signs DBSP for schedule considerations




Environmental Protection

Organization

Reviews project’s environmental

implications

Signs DBSP for environmentalconsiderations




Estimating

Prepares budgetary cost estimate

Estimate Accuracy is +/- 40%




DBSP Content

Purpose of Facilities

Present Situation

Location Analysis

Interfaces

Design ObjectivesGeneral Project Design Basis




DBSP Content (cont’d)

Description of Proposed Facilities

–Type of facility

–

Corresponding technical design basis –Specific facility attributes




DBSP Content (cont’d)

Scope Evaluation to Date

Additional Study Requirements during

Preliminary Design

Constructability and Logistical Assessment

As-Built Drawing Assessment

Value Engineering StudyProject Schedule

Appendices




What to Include in DBSP

What’s IN?Preliminary description of facility to be provided

Evaluation of existing conditions

Results of previous studies

Scope of Work of Project organized by discipline

Limits of scope of work for the Design Engineer

Design bases

Utility sources and interface pointsConceptual layout of equipment

Schematics and Process Flow Diagrams

List of major equipment




What NOT to include in the DBSP

What’s OUT? Exact size of equipment

Type of valves, flow meters, levels, etc.

Name of manufacturer

Final layout, Sections, P&ID, etc.

Detailed design calculations

Detailed specifications

Project cost




Example 1

Building- Location

- Site conditions

- Type of construction- Built-up Area

- Number of persons

- Sizing criteria- Preliminary layout

- Utility requirements




Example 2

Sewage Treatment Plant

- Location

- Capacity

- Level of Treatment

- Treatment Process

- Treatment Facilities

- Design Criteria

- Electrical and Instrumentation

- Process Flow Diagram

- Conceptual Layout




Example 3

Water Supply Network- Location

- Number of persons

- Water requirement- Piping material

- Preliminary pipe sizing

- Preliminary layout- Pumping and storage facilities




Development Process

Issue Initial

Draft DBSP

Conduct ValueEngineering Study

(if required)

Issue Draft DBSP for

Review

Incorporate

DBSP

Comments

Complete

DBSP

Seek Approval

Of DBSP

Obtain Capital Budget

Cost Estimate

Design Basis Agreement

on Optimized Scope

Prepare DBSP Execution

Plan

DevelopProject

Scope

Assess Synergies of

Combining Projects

Y S

O

Initiate DBSP/

Assign Team Members

Y S

Modify Project Scope or

Recommend Cancellation

O

Business

Case Still

Valid

Modify Project Scope or

Recommend Cancellation

Approve

BusinessCase/Stud

y




Conclusions

DBSP is a critical document in every projectcycle

DBSP requires proper and timely input from

involved organizations

A GOOD DBSP will put the project on track(scope, cost and schedule), and prevent future

issues and conflicts

A POOR DBSP will hinder the project designand execution phases, and negatively impact

the project cost and schedule




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Adli Khalaf - Design Basis Scoping Paper

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