5.1 Quality Management Systems & Quality Control Standards

Quality Management Systems & Quality Control Standards

Quality management in architectural practice is not merely an operational convenience; it is a fundamental risk management strategy and a core professional duty. Errors, omissions, and uncoordinated construction documents directly lead to contractor claims, budget overruns, project delays, and potential legal liability. Implementing a systematic Quality Management System (QMS) ensures that an architectural firm consistently delivers contract documents that meet professional standards of care, regulatory requirements, and client expectations.

---

Quality Assurance (QA) vs. Quality Control (QC)

Candidates preparing for the ARE 5.0 Practice Management exam must clearly distinguish between Quality Assurance (QA) and Quality Control (QC). Although often used interchangeably in casual conversation, they represent distinct components of a comprehensive QMS.

Quality Assurance (QA) encompasses all planned and systematic actions established to provide confidence that a project will satisfy professional and technical quality standards. QA establishes the environment, workflows, drawing standards, standard details, master specifications, and staff training necessary to avoid mistakes. For example, maintaining an up-to-date master specification database (such as MasterFormat templates) or requiring standardized BIM family libraries are QA measures.

Quality Control (QC), by contrast, is the physical inspection and verification process applied to specific deliverables. QC evaluates the actual output—such as a set of 90% Construction Documents—against established criteria through rigorous reviews, redlining, and coordination checks before the documents leave the office.

---

ISO 9001 Alignment and the PDCA Cycle

International standard ISO 9001 defines criteria for a quality management system based on the principles of customer focus, leadership commitment, process orientation, and continuous improvement. Architectural firms frequently align their internal operating procedures with ISO 9001 frameworks using the Plan-Do-Check-Act (PDCA) cycle (also known as the Deming Cycle).

  ┌─────────────────────────────────────────────────────────┐
  │                       1. PLAN                           │
  │ Establish quality objectives, project execution plan,  │
  │ QA/QC checklists, roles, and project standards.        │
  └───────────────────────────┬─────────────────────────────┘
                              │
                              ▼
  ┌─────────────────────────────────────────────────────────┐
  │                        2. DO                            │
  │ Execute design and documentation according to established│
  │ standards, workflows, and BIM execution protocols.      │
  └───────────────────────────┬─────────────────────────────┘
                              │
                              ▼
  ┌─────────────────────────────────────────────────────────┐
  │                      3. CHECK                           │
  │ Perform milestone check-print reviews, peer reviews,   │
  │ interdisciplinary overlay checks, and quality audits.   │
  └───────────────────────────┬─────────────────────────────┘
                              │
                              ▼
  ┌─────────────────────────────────────────────────────────┐
  │                       4. ACT                            │
  │ Implement corrective actions, update office master      │
  │ details, conduct root-cause analysis, revise templates. │
  └─────────────────────────────────────────────────────────┘

1. Plan: Establish quality goals, select appropriate master specifications, assemble the project team, and create a project-specific quality management plan.
2. Do: Execute the design and drafting work following firm standards, utilizing pre-approved detail libraries and BIM templates.
3. Check: Inspect deliverables through scheduled milestone reviews, peer audits, and interdisciplinary coordination reviews.
4. Act: Correct identified errors, analyze root causes of systemic drafting or detailing flaws, and update master templates to prevent recurrence in future projects.

---

Check-Print Reviews and Milestone Checkpoints

A check-print review is a formal Quality Control event where printed or digital PDF proof sets are thoroughly examined for technical accuracy, code compliance, graphic clarity, and interdisciplinary consistency. Effective QC schedules mandate reviews at defined project milestones:

Key Milestone Review Gates

• Schematic Design (SD) Exit Review: Verifies space program compliance, zoning setbacks, code occupancy classifications, egress path capacity, and major structural/building system concepts.
• Design Development (DD) Exit Review: Evaluates structural grid alignment, MEP space allocations, wall assembly ratings, primary exterior envelope details, and outline specifications.
• 50% Construction Documents (CD) Review: Checks background coordination, initial detail callouts, door/window schedules, specification section completeness, and initial consultant overlays.
• 90% Construction Documents (CD) Review: The primary comprehensive QC review. Evaluates full constructability, specification-drawing cross-references, complete dimensioning, hardware schedules, code notes, and complete MEP/Structural integration.
• 100% CD / Permit Set Review: Final verification that all 90% redlines have been back-checked, corrected, signed off by the principal-in-charge, and prepared for regulatory submittal.

---

Standardized Redline Protocols and Color Conventions

To prevent miscommunication between reviewers and production staff, firms enforce standardized redline protocols. Standard industry color-coding conventions maintain strict accountability during drawing corrections:

• Red: Applied by the senior reviewer to indicate additions, corrections, deletions, or structural/architectural changes that must be made.
• Yellow: Applied by the drafter/BIM technician to highlight redlines as they are completed and incorporated into the model or sheet.
• Blue / Green: Applied by the reviewer during back-checking to verify that every red mark was correctly implemented without introducing secondary errors.

---

Quality Audits and Root-Cause Analysis

Beyond project-specific QC, a firm must perform periodic quality audits. A quality audit is an independent evaluation of project files, communications, and drawing sets conducted by a quality manager or external peer reviewer who is not assigned to the project team.

When recurring errors surface—such as repeated flashing details failing in the field or frequent RFI volume regarding ceiling clearances—the firm conducts a root-cause analysis. Rather than blaming individual staff, root-cause analysis investigates workflow breakdowns (e.g., outdated detail libraries or uncoordinated consultant file transfers). Findings are compiled into a central lessons-learned database, ensuring firm-wide professional growth and continuous quality elevation.