Design drawing review bijoy

Bijoy Kumar Roy – Malda West Bengal India
Design Drawing - Reviews
Presentation No- PDR -01
1
Prepared by : Bijoy Kumar Roy

Fix the Rules please
 Mobile phone in silence
 No smoking
 Respect time schedule
 Open, frank and fruitful discussions in a polite manner
 No peer-to-peer discussions while one is talking
 Differences in opinions will not be taken personally
2

 Fix the Rules please
 Introduction
 Review Process
 Review objectives
 Formal design reviews
(FDRs) Involved
 Formal Design Reviews
 Preparations for the Design Review
 Drawing Initiation & Preparation
Agenda
 Participation in the Review
 The Design Review Session
 The Design Review Report
 Follow up Process
 Oftentimes Problems
 Problems in Construction Drawin
 Drawing Quality reviewed
 Guidelines for Design review
 Question?

Introduction
 The design document is the key of a project.
 Important to check repeatedly in the process.
 To get IFC stamp approval on the drawing typically,
reviewed many times
 Appoint other reviewers. Unfortunately, we often don’t
find our own errors.
 Different stakeholders with different viewpoints are used
in the review process.

Review Process
 Review / verification level process should be mentioned in the approved Project
Management Plan.
 A review process is : “a process or meeting during which a work product or set of
work products is presented to project stockholder, personnel, managers, users,
customers, or other interested parties for comment or approval.” (IEEE)
 Essential to detect / correct errors in these earlier work products because the cost of
errors downstream is very expensive!!
Review Process Summary
 Notification
 Schedule Time
Review Documents
Comments Letter
Review Meeting
Comments Response

Review Process (2)
Review Choices:
- Formal Design Reviews (FDR)
- Peer reviews (inspections and walkthroughs)
Used especially in design and coding phase

A. Direct objectives – Deal with the current project
Detect analysis and design errors as well as subjects where corrections,
changes and completions are required
Identify new risks likely to affect the project.
Find deviations from templates, style procedures and conventions.
Approve analysis or design product. Approval allows the team (Together,
Everyone, Achieves, More) to continue on to the next improvement phase.
Review complete within the stipulated 05 working days duration
B. Indirect objectives – are more general in nature.
To provide an informal meeting place for exchange of professional
knowledge about methods, tools and techniques.
To record analysis and design errors that will serve as a basis for future
corrective actions. (very important)
Review Objectives

B. Indirect objectives – are more general in nature.
 Many different kinds of reviews that apply to different objectives.
 Reviews are not randomly thrown together.
 Well-planned and orchestrated.
 Objectives, roles, actions, participation, …. Very involved tasks.
 Participants are expected to contribute in their area of expertise.
 Idea behind reviews is to discover problems NOT to fix them/
 Typically fixed after review and ‘offline’ so to speak.
 Very common to review design documents.
 Thus they are usually well-prepared initially prior to review.
Review Objectives (2)

 Software Requirement Specification Review(SRSR)
 Detailed Design Review (DDR)
 Data Base Design Review (DDR)
 Test Plan Review (TPR)
 Software Test Procedure Review (STPR)
 Version Description Review (VDR)
 Operator Manual Review (OMR)
 Support Manual Review (SMR)
 Test Readiness Review (TRR)
 Product Release Review (PRR)
 Installation Plan Review (IPR)
 Development Plan Review (DPR)
 Preliminary Design Review (PDR)
Important to note that a design review can take place any time an
analysis or design document is produced, regardless whether that
document is a requirement specification or an installation
document.
Formal Design Reviews Involved

Formal Design Reviews
Personal experience in:
 Operators’ Manual
 Users’ Manual
 Program Maintenance Manual
 Staff Users Manual
 Installation / Conversion Plan
 Test Plan(s)
 Depend on size of project!

Preparations for the Design Review
 Participants in the review include the
– Review leader,
– Review team, and
– Development team.
 Review Leader:
– appoint team members;
– establishes schedule,
– distribute design documents, and more
 Review Team preparation:
– review document; list comments PRIOR to review session.
– For large design docs, leader may assign parts to individuals;
– Complete a checklist
 Development Team preparations:
– Prepare a short presentation of the document.
– Focus on main issues rather than describing the process.
– This assumes review team has read document and is familiar with project’s outlines.

Drawing Initiation & Preparation
Drawing Initiation and Preparation
 Designer (Drawing Originator)
 Draughter (person producing the drawing and well known of the CAD
Standards and Manuals)
If appropriate produce a approved Project CAD Plan Table
Use Drawing Issue Register or similar
Follow designer’s instructions and refer standards , regulations or
similar legislation as require.
Self check against a Drawing Checklist or similar and discuss with
Designer during preparation before handover to others.

Participation in the Review
Drawing / Report Checking (Use Drawing/Report Checklist) levels based on
Drawing / Report complexity
– Carry out and record checking with Management/Verification Plan
– Verified relevant calculations, standards, risks & equivalent legislation information
– Review Committee Decided Final Approver
Checking Level 1 – Design
– If satisfied add initials Checker and Approved by Approver (Designer)
 Checking Level 2 – Drawing Review
 If satisfied add initials of Checker and Checked,
 Arrange for any amendments to the Drawing by Designer
 If satisfied the amendment add initials by Checker
 Pass it to the approver

Participants in the Review (2)
 Checking Level 3- Detailed Check
 If satisfied add initials Checked,
 Pass it to the approver
 Checking Level 4 - External Check
 If satisfied add initials Checked,
 Pass it to the approver for internal organization
 When complete send to the external Checker. Consider discuss and resolve queries.
If revision is necessary.

Checking Level 5 – As defined in the Management Plan
Carry out the required verification process if define extra checking
 Approval
- Final review is complete when satisfied of each drawing.
Note: Record and check prints and/or CAD record versions in project records.
Remove obsolete drawings from use and clearly mark "SUPERSEDED", or
otherwise

 Review Leader – Design Engineering Consultant
Needs to be external to the project team.
Must have knowledge and experience in development of the
review type
Seniority at least as high as the project leader.
Good relationship with project leader and team
Generally, this person really needs to know the project’s
material and should NOT be the project leader –
Would impact objectivity!
Would miss things entirely!

Review Team
Needs to be from senior members of the team with other senior
members from other departments (Architectural, Civil,
Electrical, Mechanical, IT Security etc.).
 Why?
 Escalation?
Team size should be 3-5 members.
Too large, and we have too much coordination.
This is a time for serious business – not lollygagging!

The Design Review Session
 Review Leader is key person for sure!
 Start with short presentation (development team)
 Comments by members (review team)
 Comments discussed to determine required actions team must perform
(review and development teams)
 Decisions regarding design product – tells project’s progress.
 Full approval Code “A” - Continue on to next phase (may have minor corrections)
 Partial approval Code “B”- Revised and Resubmit)
• Continue to next phase for some parts of project; major action items needed for remainder of
project.
• Continuation of these parts granted only after satisfactory completion of action items
– Granted by review team member assigned to review completed actions or by the full review team or
special review team or by some other forum
 Rejection of Approval Code “C” – demands a repeat of Design Review
• Project has major defects, critical defects

The Design Review Report
 Review Leader’s primary responsibility following the review.
 Important to perform corrections early and minimize delays to
project schedule.
 Report contains:
 Summary of review discussions
 Decision about project continuation
 Full list of action items – corrections, changes, additions the project team
must perform. For each item, anticipated completion date and responsible
person is listed.
 Name of review team member assigned for follow up.

Follow up Process
The ‘follow-up person’ may be the review team leader
him/herself
Required to verify each action item fixed as condition
for allowing project to continue to next phase.
Follow up must be fully documented to enable
clarification of the corrections in the future, if any.

Oftentimes Problems
Sometimes entire parts of DR are often worthless due to
– Inadequately prepared review team, or
– Intentional evasion of a thorough review.
Tipoff:
– Very short report – limited to documented approval of the
design and listing few, if any, defects
– Short report approving continuation to next project phase in
full - listing several minor defects but no action items.
– A report listing several action items of varied severity but no
indication of follow-up (no correction schedule, no
documented activities, …)

Problems in Construction Drawings
Drg. Rev.
number on Drg.
 Request For
Inspection (RFI)
submittal are not
mention Rev. #
 Bijoy’s review was noted that the
drawing should be IFC stamps, but not
happen before start of construction.
No drawing revision
number

Problems in Construction Drawings (2)
 Code “B” –Revised & Resubmit comments was
not incorporated in the final Drg. before the
commencement of work at site.
 Drawings are with yellow text which are not
readable properly
 All Drawings in a folder are same numbers and
same drawing title.

Drawing Quality reviewed
Drawing index and Drawing title are not same
Drawings are not available according to the drawing index
Standard project approved template are not used
Notes are copy paste from others drawing and are related
with the specific drawings

 Varies in Drawing
Template
 Varies in drawing
numbering system
 Some drawing have
physical signature
some are not.
Examples; ERP 93103 and 45899, 102172
Drawing Quality reviewed (2)

1. Design Review Infrastructure
 Develop checklists for common types of design
documents.
 Train senior professionals to serve as a reservoir for
Design Review Teams (Together, Everyone, Achieves, More).
 Periodically analyze past Design Review effectiveness.
 Schedule the Design Reviews as part of the project plan.
Guidelines for Design review
2. The Design Review Team
Review teams size should be limited, with 3–5 members
being the optimum.

3. The Design Review Session
Discuss professional issues in a constructive way refraining from personalizing
the issues.
Keep to the review agenda.
Focus on detection of defects by verifying and validating the participants'
comments.
 Refrain from discussing possible solutions.
If disagreement about an error - end the debate by noting the issue and shifting
its discussion to another forum.
Properly document discussed comments, and the results of their verification
and validation.
Review session should not exceed two hours.
(2)

4. Post-Review Activities
Some example
 Prepare the review report, including the action items
 Establish follow-up to ensure the satisfactory performance of all
the list of action items
 Test font size and font are different in the same drawing
 Drawing dimensions are not very clear
 Etc.
(3)

Bijoy Kumar Roy – Malda West Bengal India 29
THANK YOU
For any Query, contract QA/QC Department –For any Query, contract QA/QC Department – QA/QC ManagerQA/QC Manager

Feedback Please

Design drawing review bijoy

Recommandé

Recommandé

Contenu connexe

Tendances

Tendances (18)

En vedette

En vedette (20)

Similaire à Design drawing review bijoy

Similaire à Design drawing review bijoy (20)

Dernier

Dernier (20)

Design drawing review bijoy

Notes de l'éditeur