ISO 24516-1:2016 給水および廃水システムの資産管理のためのガイドライン—パート1：飲料水分配ネットワーク | ページ 6

3.1

asset

capital-forming goods used for the provision of the service

Note 1 to entry: Assets can be tangible or intangible. Examples of tangible assets are: land, buildings, pipes, wells, tanks, treatment plants, equipment, hardware. Examples of intangible assets are: software, databases.

Note 2 to entry: Contrary to consumables, assets can be depreciated in accounting systems.

[SOURCE: ISO 24510:2007, 2.4]

3.2

asset management

processes that enable a water utility to direct, control and optimize the provision, maintenance and disposal of infrastructure assets, including the necessary costs for specified performances, over their life-cycle

[SOURCE: ISO 24510:2007, 2.5]

3.3

asset system

set of assets (3.1) that interact or are interrelated

[SOURCE: ISO 55000:2014, 3.2.5]

3.4

asset type

grouping of assets (3.1) having common characteristics that distinguish those assets as a group or class

Note 1 to entry: Examples of asset types include, but are not limited to, physical assets, information assets, intangible assets, critical assets, enabling assets, linear assets, information and communications technology (ICT) assets, infrastructure assets, moveable assets, etc.

Note 2 to entry: Examples of physical asset types in the water sector are pipes, valves, pumps or filters of the same class, coating, year of manufacture, producer or the ageing process.

[SOURCE: ISO 55000:2014, 3.2.6]

3.5

failure

local inadmissible impairment of the operability of an asset of a drinking water or wastewater system

3.6

failure data

data describing the characteristics of the failure (3.5) caused at a certain point in time on a certain asset of a drinking water or wastewater system

3.7

failure rate

number of failures (3.5) per unit

Note 1 to entry: In the case of pipelines, expressed per kilometre per year.

Note 2 to entry: For drinking water networks, in the case of connections and valves, expressed per thousand per year.

3.8

inspection

identifying the actual status of an asset or asset system

3.9

investigation

gathering of all information necessary for a decision making process

Note 1 to entry: This includes both qualitative and quantitative information.

[SOURCE: EN 15898:2011, modified]

3.10

level of service

service to users which reflects social and economic goals of the community safety, customer satisfaction, quality, quantity, capacity, reliability, responsiveness, environmental acceptability, cost and availability

Note 1 to entry: A defined level of service can include any combination of the aforementioned parameters deemed important by the asset owner, users or relevant stakeholders.

3.11

life cycle cost

total cost of an asset (3.1) throughout its service life, including planning, design, construction, acquisition, operation, maintenance, rehabilitation and disposal costs

3.12

maintenance

combination of all technical, administrative and managerial actions during the life cycle of an asset intended to retain it in, or restore it to, a state in which it can perform the required function

[SOURCE: ISO 24510:2007, 2.19]

3.13

management of assets

operation, maintenance and rehabilitation of assets of water supply and wastewater systems as a functional activity

Note 1 to entry: This encompasses all necessary activities for sustainable operation and maintenance of the assets in drinking water and wastewater systems.

3.14

operation(s)

action(s) taken in the course of normal functioning of drinking water or wastewater systems

[SOURCE: EN 752:2015, modified]

3.15

operational plan

documented collection of procedures and information that is developed, compiled and maintained in readiness for the conduct of operations

3.16

performance indicator

metric or measure by which the achievement of an objective can be assessed

[SOURCE: ISO 19440:2007, 3.1.62]

3.17

rehabilitation

measures for restoring or upgrading the performance of existing asset systems, including renovation, repair and replacement

[SOURCE: EN 16323:2014, modified]

3.18

rehabilitation rate

percentage of entire inventory which is rehabilitated or to be rehabilitated on an annual basis

3.19

service

result of a process

Note 1 to entry: Adapted from the definition of “product” in ISO 9000:2005.

Note 2 to entry: Services are one of the four generic categories of products with software, hardware and process materials. Many products comprise elements belonging to different generic product categories. Whether the product is then called “service” depends on the dominant element.

Note 4 to entry: The word “service” in common English can also refer to the entity providing the actions related to the subject in question, as is implicit in such phrases as “bus service”, “police service”, “fire service” and “water or wastewater service”. In this context and usage, “service” implies the entity that is delivering the service, e.g. “the public transport of passengers”, “the provision of public security”, “fire protection and response”, and “delivering drinking water or collecting wastewater”. If “service” can be understood in this way, “water service” becomes synonymous with “water utility”; hence in this document, in order to avoid confusion, only the definition in 3.19 applies.

[SOURCE: ISO 24510:2007, 2.44]

3.20

service life

period of time after installation during which an asset or an asset system meets or exceeds the technical requirements and functional requirements

[SOURCE: EN 15978:2011, modified]

3.21

strategic plan

plan containing the long-term goals and strategies of an organization

Note 1 to entry: Strategic plans have a strong external focus, cover major portions of the organization and identify major targets, actions and resource allocations relating to the long-term survival, value and adoption to ongoing changes of an organization.

3.22

tactical plan

prioritization in the medium term on the basis of influencing factors/indicators on performance, costs, risk and failure probability and scale of failure, including general determination