ISO 11863-2011 PDF

Full title and description

St ISO 11863-2011 — Buildings and building-related facilities — Functional and user requirements and performance — Tools for assessment and comparison. This International Standard provides structured methods and tools to define, compare and evaluate functional performance requirements (demand) and the capability of buildings and building-related facilities to meet those requirements (supply).

Abstract

ISO 11863:2011 specifies how to determine functional performance requirements for buildings and building-related facilities and how to check the capability of buildings and facilities to meet identified requirements. It sets out methods to determine the relative importance of each requirement, to establish thresholds for capability (levels of serviceability), and to evaluate the significance of gaps between required and actual capabilities. The standard is applicable to assets of any size or scope and to a broad range of roles and stakeholders involved in building ownership, management, occupation and use.

General information

• Status: Published (confirmed as current following ISO systematic review).
• Publication date: July 2011 (Edition 1).
• Publisher: International Organization for Standardization (ISO).
• ICS / categories: 91.040.01 (Buildings in general).
• Edition / version: Edition 1 (2011).
• Number of pages: 23.

Scope

ISO 11863:2011 applies to the determination and assessment of functional and user requirements and to the evaluation of performance for buildings and building-related facilities. It is intended for use across single buildings, components and systems, and portfolios of assets at one or more sites. The standard supports owners, managers, occupiers, tenants and other stakeholders in defining demand, setting thresholds for acceptable capability, weighting and prioritizing requirements, and comparing or ranking assets against those requirements.

Key topics and requirements

• Definitions and vocabulary for functional performance, functionality, capability (serviceability) and gaps.
• Methods to determine levels of functional performance required by stakeholders (demand).
• Procedures to assess existing or proposed capability of assets to meet requirements (supply).
• Guidance on assigning relative importance (weighting) to requirements and topics.
• Establishing thresholds and acceptance criteria for capability and performance levels.
• Techniques to quantify and evaluate gaps between required and provided performance.
• Tools for comparative assessment and prioritization across assets or portfolios.

Typical use and users

The standard is typically used by building owners, facility and asset managers, property portfolio managers, building consultants, architects and engineers, public-sector procurers and estate managers, and other stakeholders responsible for defining, procuring, operating or comparing built assets. Typical applications include setting user-focused performance requirements, evaluating retrofit or replacement options, prioritizing investment across portfolios, and supporting procurement and contract specification based on functional outcomes.

Related standards

Standards and documents commonly used alongside ISO 11863 include ISO 41001 (facility management systems), ISO 6707-1 (building vocabulary and terms), other ISO/TC 59 building and civil engineering standards, and regional standards/guides on facility management and performance assessment (for example EN/BS agreements and national guidance on building performance and asset management).

Keywords

functional performance, user requirements, buildings, building-related facilities, assessment tools, performance thresholds, capability, gap analysis, asset management, serviceability, weighting, portfolio comparison

FAQ

Q: What is this standard?

A: ISO 11863:2011 is an international standard that defines methods and tools to identify and compare functional and user performance requirements and to assess whether buildings or building-related facilities meet those requirements.

Q: What does it cover?

A: It covers the process of determining demand (required functional performance), measuring supply (capability or serviceability), assigning importance to requirements, establishing thresholds, and evaluating differences (gaps) so assets can be assessed, compared and prioritized.

Q: Who typically uses it?

A: Building owners, facility and asset managers, portfolio managers, architects, engineers, consultants, public authorities and procurement teams use it to set requirements, compare options and prioritize investments based on functional outcomes.

Q: Is it current or superseded?

A: The standard was published in July 2011 (Edition 1) and has been subject to ISO review processes; it was confirmed as current following ISO systematic review activity. Users should check with their national standards body or ISO store for the most recent status before purchase or formal reference.

Q: Is it part of a series?

A: ISO 11863 is a standalone International Standard within the suite of ISO/TC 59 (Buildings and civil engineering works) deliverables. It is closely related to other building- and facility-management standards and vocabulary documents and is intended to be used alongside those standards where appropriate.

Q: What are the key keywords?

A: Functional performance, user requirements, capability, serviceability, threshold, gap analysis, buildings, asset management, performance comparison.