Request Fulfilment: Difference between revisions

From IT Process Wiki
mNo edit summary
No edit summary
 
(9 intermediate revisions by the same user not shown)
Line 1: Line 1:
<seo metakeywords="request fulfilment, request fulfillment, itil request fulfilment, request fulfilment process" metadescription="Request Fulfilment: ITIL process definition - subprocesses - Additional information on Request Fulfilment." />
<itpmch><title>Request Fulfilment | IT Process Wiki</title>
<meta name="keywords" content="request fulfilment, request fulfillment, itil request fulfilment, itil request fulfillment" />
<meta name="description" content="Request Fulfilment aims to fulfill Service Requests, which in most cases are minor (standard) Changes - e.g. requests to change a password or requests for information. Part of: ITIL Service Operation." />
<meta property="og:url" content="https://wiki.en.it-processmaps.com/index.php/Request_Fulfilment" />
<meta property="og:title" content="Request Fulfilment | IT Process Wiki" />
<meta property="og:description" content="Request Fulfilment aims to fulfill Service Requests, which in most cases are minor (standard) Changes - e.g. requests to change a password or requests for information. Part of: ITIL Service Operation." />
<meta property="og:site_name" content="IT Process Wiki - the ITIL&#174; Wiki">
<meta property="og:type" content="article" />
<meta property="article:publisher" content="https://www.facebook.com/itprocessmaps" />
<meta property="fb:admins" content="100002035253209" />
<meta property="fb:admins" content="100002592864414" />
<meta property="og:image" content="https://wiki.en.it-processmaps.com/images/e/eb/Request-fulfilment.jpg" />
<meta property="og:image:width" content="1200" />
<meta property="og:image:height" content="900" />
<link href="https://plus.google.com/108613479011811316823/posts" rel="publisher" />
</itpmch>
<imagemap>
<imagemap>
Image:ITIL-Wiki-de-es.jpg|DE - ES - Request Fulfilment|100px
Image:ITIL-Wiki-de-es.jpg|right|DE - ES - Request Fulfilment|163px
rect 0 0 50 30 [https://wiki.de.it-processmaps.com/index.php/Request_Fulfilment diese Seite auf Deutsch]
rect 81 0 114 36 [https://wiki.de.it-processmaps.com/index.php/Request_Fulfilment diese Seite auf Deutsch]
rect 50 0 100 30 [https://wiki.es.it-processmaps.com/index.php/ITIL_Cumplimiento_de_la_Solicitud esta página en español]
rect 115 0 163 36 [https://wiki.es.it-processmaps.com/index.php/ITIL_Cumplimiento_de_la_Solicitud esta página en español]
desc none
desc none
</imagemap>
</imagemap>
<br style="clear:both;"/>
<br style="clear:both;"/>


== ITIL Request Fulfilment: Overview ==
'''<span id="Overview">Objective:</span>''' <html><span id="md-webpage-description" itemprop="description"><i>ITIL Request Fulfilment</i> aims to fulfill Service Requests, which in most cases are minor (standard) Changes - e.g. requests to change a password or requests for information.</span></p>
<p><b>Part of</b>: <a href="https://wiki.en.it-processmaps.com/index.php/ITIL_Service_Operation" title="ITIL Service Operation">Service Operation</a></html>


'''Process Objective''': To fulfil Service Requests, which in most cases are minor (standard) Changes (e.g. requests to change a password) or requests for information.
'''Process Owner''': [[Request Fulfilment#Incident Manager|Incident Manager]]


'''Part of''': [[ITIL V3 Service Operation|Service Operation]]
<p>&nbsp;</p>


'''Process Owner''': [[Request Fulfilment#Additional Information on Request Fulfilment|Incident Manager]]
==Process Description==


Request Fulfilment has been added as a new process to ITIL V3 with the aim to have a specific process dealing with [[Request Fulfilment#Service Request|Service Requests]].


== ITIL Request Fulfilment: Process Definition ==
This was motivated by a clear distinction in ITIL V3 between [[Incident Management#Incident|Incidents]] (Service Interruptions) and [[Request Fulfilment#Service Request|Service Requests]] (standard requests from users, such as password resets).


[[Image:Request-fulfilment.jpg|thumb=overview_request_fulfilment_itilv3_thumb.jpg|left|[https://wiki.en.it-processmaps.com/images/pdf/process_overview_request_fulfilment_itilv3.pdf ITIL Request Fulfilment Management]]]
<span id="Request Fulfilment 2011">In ITIL 2011, Request Fulfilment has been completely revised.</span>
[[Image:Request-fulfilment.jpg|right|thumb|500px|alt=Request Fulfilment ITIL|link=https://wiki.en.it-processmaps.com/index.php/File:Request-fulfilment.jpg|[https://wiki.en.it-processmaps.com/images/pdf/process_overview_request_fulfilment_itilv3.pdf ITIL Request Fulfilment (.pdf)]]]


Request Fulfilment was added as a new process to ITIL V3 with the aim to have a dedicated process dealing with [[Request Fulfilment#Service Request|Service Requests]]. This was motivated by a clear distinction in ITIL V3 between [[Incident Management#Incident|Incidents]] (Service Interruptions) and [[Request Fulfilment#Service Request|Service Requests]] (standard requests from users, e.g. password resets).  
Request Fulfilment now consists of [[Request Fulfilment#Sub-Processes|five sub-processes]], to provide a detailed description of all activities and decision points.


In ITIL V2, Service Requests were fulfilled by the [[Service Desk and Incident Management|Incident Management process]].
The process contains interfaces
<br style="clear:both;"/>
* with Incident Management - if a Service Request turns out to be an Incident and
* with Service Transition - if fulfilling a Service Request requires the involvement of Change Management. The process overview of [[Media:Request-fulfilment.jpg|ITIL Request Fulfilment]] shows the key information flows (see fig. 1).
 
A clearer explanation of the information that describes a [[Request Fulfilment#Service Request|Service Request]] and its life cycle has been added. Furthermore, the concept of [[Request Fulfilment#ITIL Service Request Model|Service Request Models]] is explained in more detail.


=== Sub-Processes ===
[[ITIL 4]] refers to Request Fulfilment as a [[ITIL_4#Service_management_practices|service management practice]], and has renamed the practice to "Service request management". The service desk activities are described in the ITIL4 practice of "Service desk".
<p style="clear:both;">&nbsp;</p>


No sub-processes are specified for [[Request Fulfilment|ITIL Request Fulfilment]].
==Sub-Processes==


<html><div itemscope="itemscope" itemtype="https://schema.org/ItemList"><!-- define schema.org/ItemList -->
<meta itemprop="itemListOrder" content="Ascending" />
<p><span itemprop="name" content="Request Fulfilment sub-processes:">These are the <strong class="selflink">ITIL Request Fulfilment</strong> sub-processes and their process objectives:</span>
</p>
<p><b><span id="Request_Fulfilment_Support" itemprop="itemListElement">Request Fulfilment Support</span></b>
</p>
<ul><li itemprop="description">Process Objective: To provide and maintain the tools, processes, skills and rules for an effective and efficient handling of <a href="/index.php/Request_Fulfilment#Service_Request" title="Request Fulfilment">Service Requests</a>.
</li></ul>
<p><b><span id="Request_Fulfilment_Logging" itemprop="itemListElement">Request Logging and Categorization</span></b>
</p>
<ul><li itemprop="description">Process Objective: To record and categorize the Service Request with appropriate diligence and check the requester's authorization to submit the request, in order to facilitate a swift and effective processing.
</li></ul>
<p><b><span id="Request_Fulfilment_Model" itemprop="itemListElement"><a href="/index.php/Request_Fulfilment#ITIL_Service_Request_Model" title="Request Fulfilment">Request Model</a> Execution</span></b>
</p>
<ul><li itemprop="description">Process Objective: To process a Service Request within the agreed time schedule.
</li></ul>
<p><b><span id="Request_Fulfilment_Escalation" itemprop="itemListElement">Request Monitoring and Escalation</span></b>
</p>
<ul><li itemprop="description">Process Objective: To continuously monitor the processing status of outstanding Service Requests, so that counter-measures may be introduced as soon as possible if service levels are likely to be breached.
</li></ul>
<p><b><span id="Request_Fulfilment_Evaluation" itemprop="itemListElement">Request Closure and Evaluation</span></b>
</p>
<ul><li itemprop="description">Process Objective: To submit the <a href="/index.php/Request_Fulfilment#Service_Request_Record" title="Request Fulfilment">Request Record</a> to a final quality control before it is closed. The aim is to make sure that the Service Request is actually processed and that all information required to describe the request's life-cycle is supplied in sufficient detail. In addition to this, findings from the processing of the request are to be recorded for future use.
</li></ul>
</div><!-- end of schema.org/ItemList --><p></html>


===== Downloads =====
==Definitions==


Use the following links to open the process overview of Request Fulfilment showing the most important interfaces:
<html><div itemscope="itemscope" itemtype="https://schema.org/ItemList"><!-- define schema.org/ItemList -->
<meta itemprop="itemListOrder" content="Ascending" />
<p><span itemprop="name">The following <a href="/index.php/ITIL_Glossary#ITIL_Glossary_A-Z" title="ITIL Glossary">ITIL terms and acronyms</a> (<i>information objects</i>) are used in the Request Fulfilment process to represent process outputs and inputs:</span>
</p>
<p><b><span id="Service_Request" itemprop="itemListElement">Request for Service</span></b>
</p>
<ul><li itemprop="description">A formal request from a user for something to be provided – for example, a request for information or advice; to reset a password; or to install a workstation for a new user. The details of a Request for Service are recorded by Request Fulfilment in a <a href="/index.php/Request_Fulfilment#Service_Request_Record" title="Request Fulfilment">Service Request Record</a>.
</li></ul>
<p><b><span id="ITIL_Service_Request_Model" itemprop="itemListElement">Service Request Model</span></b>
</p>
<ul><li itemprop="description">A (Service) Request Model defines specific agreed steps that will be followed for a <a href="/index.php/Request_Fulfilment#Service_Request" title="Request Fulfilment">Service Request</a> of a particular type (or category).
</li></ul>
<p><b><span id="Service_Request_Record" itemprop="itemListElement">Service Request Record</span></b>
</p>
<ul><li itemprop="description">A record containing all details of a Service Request. Service Requests are formal requests from a user for something to be provided – for example, a request for information or advice; to reset a password; or to install a workstation for a new user.
</li></ul>
<p><b><span id="Service_Request_Status_Information" itemprop="itemListElement">Service Request Status Information</span></b>
</p>
<ul><li itemprop="description">A message containing the present status of a <a href="/index.php/Request_Fulfilment#Service_Request" title="Request Fulfilment">Service Request</a> sent to a user who earlier reported requested a service. Status information is typically provided to users at various points during a Service Request's lifecycle.
</li></ul>
</div><!-- end of schema.org/ItemList --><p></html>


* [[Media:Request-fulfilment.jpg|ITIL Request Fulfilment (.JPG)]]
==Roles | Responsibilities==
* [https://wiki.en.it-processmaps.com/images/pdf/process_overview_request_fulfilment_itilv3.pdf ITIL Request Fulfilment (.PDF)]''


'''<span id=Incident Manager">Incident Manager - Process Owner</span>'''
*The Incident Manager is responsible for the effective implementation of the Incident Management process and carries out the respective reporting. He represents the first stage of escalation for Incidents, should these not be resolvable within the agreed Service Levels.


== ITIL Terms: Request Fulfilment ==
'''<span id="1st Level Support">1st Level Support</span>'''
*The responsibility of 1st Level Support is to register and classify received Incidents and to undertake an immediate effort in order to restore a failed IT service as quickly as possible. If no ad-hoc solution can be achieved, 1st Level Support will transfer the Incident to expert technical support groups ([[ITIL Roles#2nd Level Support|2nd Level Support]]). 1st Level Support also processes [[Request Fulfilment#Service Request|Service Requests]] and keeps users informed about their Incidents' status at agreed intervals.


;<span id="Service Request">Service Request</span>
'''<span id="Service Request Fulfilment Group">Service Request Fulfilment Group</span>'''
:A request from a user for information, or advice, or for a standard change or for access to an IT service. For example to reset a password, or to provide standard IT services for a new user. Service Requests are usually handled by a service desk or a request fulfilment group, and do not require an RFC to be submitted.  
*Service Request Fulfilment Groups specialize on the fulfilment of certain types of [[Request Fulfilment#Service Request|Service Requests]]. Typically, 1st Level Support will process simpler requests, while others are forwarded to the specialized Fulfilment Groups.


;<span id="Service Request Status Information">Service Request Status Information</span>
<p>&nbsp;</p>
:A message containing the present status of a Service Request, usually sent to a user who earlier requested a service.


{| class="wikitable" style="background: white;"
|-
|+ style="background:#013b5e; color:#ffffff; font-size: 120%" colspan="4"| '''<span id="RACI-Matrix-Request-Fulfilment">Responsibility Matrix: ITIL Request Fulfilment</span>'''
|-
! style="background:#ffffee; width: 40%; text-align:center" | ITIL Role / Sub-Process
! style="background:#eeeeee" | [[Request Fulfilment#Incident Manager|Incident Manager]]
! style="background:#eeeeee" | [[Request Fulfilment#1st Level Support|1st Level Support]]
! style="background:#eeeeee" | [[Request Fulfilment#Service Request Fulfilment Group|Service Request Fulfilment Group]]
|-
|style="text-align:left;" |[[#Request Fulfilment Support|Request Fulfilment Support]]
| A[[Request Fulfilment#Accountable|<small>[1]</small>]]R[[Request Fulfilment#Responsible|<small>[2]</small>]]
|
|
|-
|style="text-align:left;" |[[#Request Fulfilment Logging|Request Logging and Categorization]]
| A
| R
| -
|-
|style="text-align:left;" |[[#Request Fulfilment Model|Request Model Execution]]
| A
| R
| R
|-
|style="text-align:left;" |[[#Request Fulfilment Escalation|Request Monitoring and Escalation]]
| AR
| R
| -
|-
|style="text-align:left;" |[[#Request Fulfilment Evaluation|Request Closure and Evaluation]]
| A
| R
| -
|-
|}


== Additional Information on Request Fulfilment ==
'''Remarks'''


==== ITIL Roles ====
<span id="Accountable">[1] ''A: Accountable'' according to the RACI Model: Those who are ultimately accountable for the correct and thorough completion of the Request Fulfilment process.</span>


;Incident Manager - Process Owner
<span id="Responsible">[2] ''R: Responsible'' according to the RACI Model: Those who do the work to achieve a task within Request Fulfilment.</span>
:The Incident Manager is responsible for the effective implementation of the process "Incident Management" and carries out the respective reporting procedure.
:He represents the first stage of escalation for Incidents, should these not be resolvable within the agreed Service Levels.  


;1st Level Support
==Notes==
:The responsibility of 1st Level Support is to register and classify received Incidents and to undertake an immediate effort in order to restore a failed IT Service as quickly as possible.
:If no ad-hoc solution can be achieved, 1st Level Support will transfer the Incident to expert Technical Support Groups (2nd Level Support).
:1st Level Support also processes Service Requests and keeps users informed about their Incidents' status at agreed intervals.


;Service Request Fulfilment Group
<html>By:&#160;&#160;Stefan Kempter&#160;<a rel="author" href="https://www.linkedin.com/in/stefankempter"><img style="margin:0px 0px 0px 0px;" src="/images/bookmarking/linkedin.png" width="16" height="16" title="By: Stefan Kempter | Profile on LinkedIn" alt="Author: Stefan Kempter, IT Process Maps GbR" /></a>, IT Process Maps.</p>
:Service Request Fulfilment Groups specialize on the fulfilment of certain types of Service Requests.
:Typically, 1st Level Support will process simpler requests, while others are forwarded to the specialized Fulfilment Groups.


<p>&nbsp;</p>


<p><small>
<span itemprop="breadcrumb" itemscope itemtype="http://schema.org/BreadcrumbList">
<span itemprop="itemListElement" itemscope itemtype="http://schema.org/ListItem">
<a itemprop="item" href="https://wiki.en.it-processmaps.com/index.php/Request_Fulfilment#Process_Description">
<span itemprop="name">Process Description</span></a>
<meta itemprop="position" content="1"></span> ›
<span itemprop="itemListElement" itemscope itemtype="http://schema.org/ListItem">
<a itemprop="item" href="https://wiki.en.it-processmaps.com/index.php/Request_Fulfilment#Sub-Processes">
<span itemprop="name">Sub-Processes</span></a>
<meta itemprop="position" content="2"></span> ›
<span itemprop="itemListElement" itemscope itemtype="http://schema.org/ListItem">
<a itemprop="item" href="https://wiki.en.it-processmaps.com/index.php/Request_Fulfilment#Definitions">
<span itemprop="name">Definitions</span></a>
<meta itemprop="position" content="3"></span> ›
<span itemprop="itemListElement" itemscope itemtype="http://schema.org/ListItem">
<a itemprop="item" href="https://wiki.en.it-processmaps.com/index.php/Request_Fulfilment#Roles_.7C_Responsibilities">
<span itemprop="name">Roles</span></a>
<meta itemprop="position" content="4"></span>
</span>
</small></p>


<i><small>[[Main Page|Home]] > [[ITIL Processes]] > [[ITIL V3 Service Operation|Service Operation]] > [[Request Fulfilment|Request Fulfilment]]</small></i>
<!-- define schema.org/WebPage --> <span itemscope itemtype="https://schema.org/WebPage" itemref="md-webpage-description">
  <meta itemprop="alternativeHeadline" content="ITIL Request Fulfilment" />
  <meta itemprop="alternativeHeadline" content="Service Request Management" />
  <meta itemprop="name" content="Request Fulfilment" />
  <link itemprop="url" href="https://wiki.en.it-processmaps.com/index.php/Request_Fulfilment" />
  <meta itemprop="inLanguage" content="en" />
  <link itemprop="citation" href="https://wiki.de.it-processmaps.com/index.php/Request_Fulfilment" />
  <link itemprop="citation" href="https://wiki.es.it-processmaps.com/index.php/ITIL_Cumplimiento_de_la_Solicitud" />
  <meta itemprop="Headline" content="Request Fulfilment" />
  <link itemprop="isPartOf" href="https://wiki.en.it-processmaps.com/index.php/ITIL_Service_Operation" />
  <link itemprop="primaryImageOfPage" href="https://wiki.en.it-processmaps.com/images/e/eb/Request-fulfilment.jpg" />
  <span id="https://wiki.en.it-processmaps.com/images/e/eb/Request-fulfilment.jpg" itemprop="image" itemscope itemtype="https://schema.org/ImageObject">
  <meta itemprop="caption" content="ITIL Request Fulfillment">
  <meta itemprop="contentUrl" content="https://wiki.en.it-processmaps.com/images/e/eb/Request-fulfilment.jpg" />
  <meta itemprop="width" content="1200" />
  <meta itemprop="height" content="900" />
  <meta itemprop="representativeOfPage" content="true"/>
  <meta itemprop="dateCreated" content="2011-09-19" />
  <meta itemprop="dateModified" content="2020-06-20" />
  <span itemprop="thumbnail" itemscope itemtype="https://schema.org/ImageObject">
    <meta itemprop="url" content="https://wiki.en.it-processmaps.com/images/thumb/e/eb/Request-fulfilment.jpg/800px-Request-fulfilment.jpg" />
    <meta itemprop="width" content="800" />
    <meta itemprop="height" content="600" />
  </span>
  <meta itemprop="keywords" content="Request Fulfillment" />
  <meta itemprop="keywords" content="Service Request Management" />
  </span>
  <link itemprop="author" href="https://www.linkedin.com/in/stefankempter" />
  <meta itemprop="author" content="Stefan Kempter" />
  <meta itemprop="creator copyrightHolder publisher" content="IT Process Maps" />
</span><p></html>


<!-- This page is assigned to the following categories: -->
<!-- This page is assigned to the following categories: -->
[[Category:ITIL V3]][[Category:ITIL process]][[Category:Service Operation|Request Fulfilment]][[Category:Request Fulfilment|!]]
[[Category:ITIL 4]][[Category:ITIL 2011]][[Category:ITIL V3]][[Category:ITIL practice]][[Category:ITIL process]][[Category:Service Operation|Request Fulfilment]][[Category:Request Fulfilment|!]]
<!-- --- -->
<!-- --- -->

Latest revision as of 12:56, 31 December 2023

DE - ES - Request Fulfilmentdiese Seite auf Deutschesta página en español
DE - ES - Request Fulfilment


Objective: ITIL Request Fulfilment aims to fulfill Service Requests, which in most cases are minor (standard) Changes - e.g. requests to change a password or requests for information.

Part of: Service Operation

Process Owner: Incident Manager

 

Process Description

Request Fulfilment has been added as a new process to ITIL V3 with the aim to have a specific process dealing with Service Requests.

This was motivated by a clear distinction in ITIL V3 between Incidents (Service Interruptions) and Service Requests (standard requests from users, such as password resets).

In ITIL 2011, Request Fulfilment has been completely revised.

Request Fulfilment ITIL
ITIL Request Fulfilment (.pdf)

Request Fulfilment now consists of five sub-processes, to provide a detailed description of all activities and decision points.

The process contains interfaces

  • with Incident Management - if a Service Request turns out to be an Incident and
  • with Service Transition - if fulfilling a Service Request requires the involvement of Change Management. The process overview of ITIL Request Fulfilment shows the key information flows (see fig. 1).

A clearer explanation of the information that describes a Service Request and its life cycle has been added. Furthermore, the concept of Service Request Models is explained in more detail.

ITIL 4 refers to Request Fulfilment as a service management practice, and has renamed the practice to "Service request management". The service desk activities are described in the ITIL4 practice of "Service desk".

 

Sub-Processes

These are the ITIL Request Fulfilment sub-processes and their process objectives:

Request Fulfilment Support

  • Process Objective: To provide and maintain the tools, processes, skills and rules for an effective and efficient handling of Service Requests.

Request Logging and Categorization

  • Process Objective: To record and categorize the Service Request with appropriate diligence and check the requester's authorization to submit the request, in order to facilitate a swift and effective processing.

Request Model Execution

  • Process Objective: To process a Service Request within the agreed time schedule.

Request Monitoring and Escalation

  • Process Objective: To continuously monitor the processing status of outstanding Service Requests, so that counter-measures may be introduced as soon as possible if service levels are likely to be breached.

Request Closure and Evaluation

  • Process Objective: To submit the Request Record to a final quality control before it is closed. The aim is to make sure that the Service Request is actually processed and that all information required to describe the request's life-cycle is supplied in sufficient detail. In addition to this, findings from the processing of the request are to be recorded for future use.

Definitions

The following ITIL terms and acronyms (information objects) are used in the Request Fulfilment process to represent process outputs and inputs:

Request for Service

  • A formal request from a user for something to be provided – for example, a request for information or advice; to reset a password; or to install a workstation for a new user. The details of a Request for Service are recorded by Request Fulfilment in a Service Request Record.

Service Request Model

  • A (Service) Request Model defines specific agreed steps that will be followed for a Service Request of a particular type (or category).

Service Request Record

  • A record containing all details of a Service Request. Service Requests are formal requests from a user for something to be provided – for example, a request for information or advice; to reset a password; or to install a workstation for a new user.

Service Request Status Information

  • A message containing the present status of a Service Request sent to a user who earlier reported requested a service. Status information is typically provided to users at various points during a Service Request's lifecycle.

Roles | Responsibilities

Incident Manager - Process Owner

  • The Incident Manager is responsible for the effective implementation of the Incident Management process and carries out the respective reporting. He represents the first stage of escalation for Incidents, should these not be resolvable within the agreed Service Levels.

1st Level Support

  • The responsibility of 1st Level Support is to register and classify received Incidents and to undertake an immediate effort in order to restore a failed IT service as quickly as possible. If no ad-hoc solution can be achieved, 1st Level Support will transfer the Incident to expert technical support groups (2nd Level Support). 1st Level Support also processes Service Requests and keeps users informed about their Incidents' status at agreed intervals.

Service Request Fulfilment Group

  • Service Request Fulfilment Groups specialize on the fulfilment of certain types of Service Requests. Typically, 1st Level Support will process simpler requests, while others are forwarded to the specialized Fulfilment Groups.

 

Responsibility Matrix: ITIL Request Fulfilment
ITIL Role / Sub-Process Incident Manager 1st Level Support Service Request Fulfilment Group
Request Fulfilment Support A[1]R[2]
Request Logging and Categorization A R -
Request Model Execution A R R
Request Monitoring and Escalation AR R -
Request Closure and Evaluation A R -

Remarks

[1] A: Accountable according to the RACI Model: Those who are ultimately accountable for the correct and thorough completion of the Request Fulfilment process.

[2] R: Responsible according to the RACI Model: Those who do the work to achieve a task within Request Fulfilment.

Notes

By:  Stefan Kempter , IT Process Maps.

 

Process Description  › Sub-Processes  › Definitions  › Roles