FUJ00003471 - Fujitsu Services: 3RD line application support service - service description (V.6.0)

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FUJ00003471

FUJ00003471
(oe) Horizon Online 3rd Line Application Support Service: Service
FUJITSU Description
FUJITSU RESTRICTED (COMMERCIAL IN CONFIDENCE)
Document Title: Horizon Online 3rd Line Application Support Service: Service
Description
Document Reference: SVM/SDM/SD/0004
Release: Release Independent
Abstract: Service description of the Third Line Support Service provided
under contract to Post Office Limited
Document Status: APPROVED
Author & Dept: Phil Boardman, Service Architect, Fujitsu Services Post Office
Account
External Distribution: POL, including approver
Information See section 0.8
Classification:
Approval Authorities:
Name Role Signature Date
Steve Bansal Fujitsu Senior Service Delivery See Dimensions for record
Manager
Dionne Harvey Post Office: Head of IT Contract See Dimensions for record
Management
See HNG-X Reviewers/Approvers Matrix (PGM/DCM/ION/0001) for guidance on who should approve.
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0 Document Control

0.1 Table of Contents

0 DOCUMENT CONTROL.

0.1 Table of Contents.
0.2 Document History.
0.3 Review Details.
0.4 Associated Documents (Internal & External
0.5 Abbreviations.
0.6 Glossary.
0.7. Changes Expecte
0.8 Information Classification

SERVICE SUMMARY.

HNG-X services.
Not Used....

asa
bo

NN

NNN

Service Definition....
1 Support for Operational Services.
2 Local Fujitsu Services POA Database an:
.3 Service Management Portal Development and Support.
4 Support for Business Continuity testing.
2.2 Service Availability...
2.3 Service Levels and Remedies.
2.3.1 General Principles
2.3.2 Service Level Relief.
2.3.3 Rectification Plan..
2.3.4 Service Levels for which Liquidated Damages Apply.
2.3.5 Service Levels for which Liquidated Damages Do Not Apply.
2.3.6 Operational Level Targets.
2.3.7 Performance Metrics.
2.3.8 Design Targets.....
2.4 Service Limits and Volumetrics.
2.5 Associated Assets and Licence:
2.5.1 Assets..
2.5.2 Licence:
2.6 Charges...
2.6.1 Operational Fixed Charg
2.6.2 Operational Variable Charge.
2.6.3 Additional Operational Variable Charge.
2.7 Dependencies and Interfaces with Other Operat
2.8 Post Office Dependencies and Responsibilities...
2.9 Business Continuity......
2.9.1 Maintaining Access to Data and System:

nal Servi

3 NOT USED.
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3.1 Not Used....

4 DOCUMENTATION SET SUPPORTING THE SERVICE

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Description

0.2 Document History

Version No. Date Summary of Changes and Reason for Issue Associated Change -
CP/PEAK/PPRR
Reference
1.0 31/08/06 Agreed CCN1200
41.4 15/08/08 Revisions made as a result of personnel changes I N/A
2.0 27/01/09 Document Approved N/A
24 16/06/10 Changes in personnel and some management N/A
roles. Removed references to out of hours laptops
and use of a specific DR site. Changed title to
include Horizon Online
3.0 09/08/10 Document Approved NIA
3.1 27/12/12 Refresh of document N/A
Changes as a result of CCN1270 POLSAP
4.0 07/01/13 Containing comments received N/A
Reinstated section 2.5.2 on licences
Removed sentence in 2.6.2 on notice period
Issued for approval
4.1 28/03/13 Changes as a result of CCN 1308a - POMS CCN1308a
5.0 24/05/13 Approval version
5.1 20-Sep-2017 I Insertion at 2.1.1.15 of obligation in CCN1627a CCN1627a
(Track and Trace workaround)
Changes as a result of CCN1409a (Horizon CCN1409a
Service Desk Exit) to 1.1(a), 2.1.1.1, 2.1.1.12,
2.3.5, 2.7.1.2, and 2.7.1.14 were not explicitly
included in CCN1409b, but are in keeping with
the agreements made by that CCN.
5.2 11-Oct-2017 I Final line of 1.1 added in v5.1 for CCN1627 now I CCN1627a
amended to read “The Third Line Support
Service” instead of “Fujitsu Services” and added
“from the Track and Trace Despatch Reports.”
5.3 21-Jul-2020 I Deleted reference to SVM/SDM/SD/0002 from CCN1423c
section 0.4.
Deletion of 2.1.1.10, 2.3.4(c) and 2.7.1.9 was not
explicitly included in CCN1423c, but is in keeping
with the agreements made by that CCN.
Deleted reference to SVM/SDM/SD/1977 from CCN1601b
section 0.4.
Deletion of 1.2 and 3 was not explicitly included in
CCN1601b, but is in keeping with the agreements
made by that CCN.
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Added entry CFS at section 0.5. Deleted second
sentence referring to POLSAP from 2.1.1.3.

CCN1655a

5.4

02-Aug-2021

Amend: 1.1, add words from “will include any
Incidents...” to end of sentence;

2.1.1.5, add “(for Branches receiving Branch
Network Service from Fujitsu Services only)”;
2.1.1.7, add sentence “For Operational Business
Change...”;

2.1.1.13, add sentence “When investigating
incidents...”

Amend 1.
Service.

, delete reference to Engineering

Amend: 1, add sentence referring to Post Office
Cloud;

2.1.1.4, add reference to Post Office Cloud;
2.1.1.12 and 2.1.2, amend “Central Infrastructure”
to “System”.

CCN1623b Part 1

CCN1648b

CCN1678

5.5

03-Sep-2021

Minor corrections to 0.3 and 0.4 following review
by POL.

5.6

20-Sep-2021

0.4, delete reference to SVM/SDM/SD/0010.

0.4, delete references to SVM/SDM/SD/0011;
1.1(e); 2.1.1.5; 2.3.4; 2.3.5; 2.7.1.3; 2.7.1.13,
delete references to Branch Network Service.

CCN1610
CCN1623b Part 2

5.7

30-Sep-2021

2.3.5; 2.7.1.9; 2.7.1.12; “Not used” replaced by
“Removed by CCN1623b”.

CCN1623b Part 2

6.0

06-Oct-2021

Approval version

0.3 Review Details

Role

Review Comments by
Review Comments to

Mandatory Review

Post Office Account Document Management

Name

Post Office Ltd Head of IT Contract Management Dionne Harvey <Dionne.Harvey:

Fujitsu Senior Commercial Manager

Helen Venters; Post Office Acco!

Fujitsu Service Architect

Phil Boardman

Role

Fujitsu Head of SSC

Optional Review

Adam Woodley

Name

Fujitsu Senior Service Delivery Manager Steve Bansal

Post Office Ltd: Head of IT Service

Martin Godbold <martin.godbold@

GRO &

Fujitsu Commercial Manager

Post Office Account Commercial Mailbox

Fujitsu Security Architect

Dave Haywood

Fujitsu Application Development Manager Graham Allen

Fujitsu Service Architecture Manager Alex Kemp,

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Fujitsu Information Security Manager

Geoff Baker

Fujitsu Document Manager

Matthew Lenton

Issued for Information — Please restrict this

distribution list to a minimum.

Position/Role

0.4 Associated Documents (Internal & External)

Reference Version Date Title Sou

PGM/DCM/TEM/0001(D POA HNG-X Generic Document Dimensions

O NOT REMOVE) Template

SVM/SDM/SD/0003 Data Centre Operations Service: I Dimensions
Service Description

SVM/SDM/SD/0005 Application Support Service Dimensions
(Fourth Line): Service Description

SVM/SDM/SD/0006 Systems Management Service: Dimensions
Service Description

SVM/SDM/SD/0007 Service Management Service: Dimensions
Service Description

SVM/SDM/SD/0012 Central Network Service: Service I Dimensions
Description

SVM/SDM/SD/0013 Reference Data Management Dimensions
Service: Service Description

SVM/SDM/SD/0014 Operational Business Change Dimensions
(Branch Change) Service:
Service Description

SVM/SDM/SD/0015 Reconciliation Service: Service Dimensions
Description

SVM/SDM/SD/0016 Management Information Service: I Dimensions
Service Description

SVM/SDM/SD/0017 Security Management Service: Dimensions
Service Description

SVM/SDM/PLA/0001 HNG-X Support Service Business I Dimensions
Continuity Plan

SVM/SDM/PLA/0003 HNG-X Business Continuity Test I Dimensions
Plan

SVM/SDM/SIP/0001 HNG-X Business Continuity Dimensions
Framework

SVM/SDM/PRO/0025 Post Office Account Customer Dimensions
Service Problem Management
Procedure

SVM/SDM/PRO/0018 POA Operations Incident Dimensions
Management Procedure

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SVM/SDM/PRO/0001 POA Operations Major Incident Dimensions
Procedure

SVM/SDM/PRO/0007 PODG Client File Re-Send Dimensions
Service — Joint Working
Document”

SVM/SDM/PRO/0875 End to End Application Support Dimensions
Strategy

COM/MGT/REP/0001 Transfer Asset Register Dimensions

Unless a specific version is referred to above, reference should be made to the current approved
versions of the documents.

0.5 Abbreviations

Abbreviation Definition

ccD Contract Controlled Document

CFS Post Office Ltd.'s Core Financials System

CMT Communications Management Team

KEL Known Error Log (Support knowledge base)

Peak Fujitsu services incident and release management system
POA Fujitsu Services Post Office Account

PODG Post Office Data Gateway

POMS Post Office Managed Switch

SMC Systems Management Centre

0.6 Glossary

Term Definition

Ad-Hoc Data Request Request for non standard management information received from Post
Office via the agreed process

Service Management Web based management information portal developed by Fujitsu Services
Portal to allow Post Office to have real time access to management information

0.7 Changes Expected

Changes

Expected changes should the HNG-X design or solution require amendment to the service provided by Fujitsu
Services.

0.8 Information Classification

The author has assessed the information in this document for risk of disclosure and has assigned an information
classification of FUJITSU RESTRICTED (COMMERCIAL IN CONFIDENCE).

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1 Service Summary

The Fujitsu Services Third Line Support Service, provides 3" line application support functions using
operational staff who are fully trained to carry out this service.

The Third Line Support Service will continue to provide this support for those elements of the HNG-X
System migrated to Post Office Cloud.

1.1 HNG-X services

Technical support when required to the following HNG-X Operational Services:
(a) Service Management Service;

(b) Systems Management Service;

(c) Data Centre Operations Service;

(d) Application Support Service (Fourth Line);

(e) Removed by CCN1623b

(f) Central Network Service;

(g) Operational Business Change Service (Branch Change);

(h) Reference Data Management Service;

(i) Security Management Service;

@) Removed by CCN1648b

(k) Management Information Service; and
(I) Reconciliation Service;

The investigation and resolution of new Software Incidents within the Branch Infrastructure will include
any Incidents related to Software identified as HNG-A Application related, but not those Incidents caused
by any software supplied by Post Office or its third parties (e.g. operating system, anti-virus or driver
software) on Replaced Branch Infrastructure.

The production and authorisation of workarounds and updates to entries within the KEL.
Local Fujitsu Services POA Database and Intranet Development.

Support Service Management Portal Development and Support.

Support for business continuity testing where this is required.

Development and support for internal Fujitsu Services POA applications and support tools.

The Third Line Support Service will receive solutions developed by the Application Support Service
(Fourth Line) to resolve Incidents.

The Third Line Support Service will provide a manual workaround to remove items in excess of 1500
from the Track and Trace Despatch Reports. Further details are provided in section 2.1.1.15 below.

1.2 Not Used

2 _HNG-X

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2.1 Service Definition

2.1.1 Support for Operational Services

This section sets out the technical support provided by the Third Line Support Service to the appropriate
Operational Services. The Third Line Support Service also supports the Business Capabilities and
Support Facilities.

2.1.1.1. Service Management Service, for Incident Management

The Third Line Support Service provides technical support to the MAC Team element of the Service
Management Service to assist in the resolution of operational Incidents at "first line". Data relating to
Incidents are passed from the Incident Management Systems via an electronic interface to the Third Line
Support Service incident management tool (Peak). Any failure of this electronic interface will result in the
manual transfer of data from the MAC Team.

The Third Line Support Service will provide information for, and maintain the Known Error Log (KEL).

2.1.1.2 Systems Management Service

The Third Line Support Service provides technical support to the Systems Management Service to assist
in the resolution of operational Incidents.

2.1.1.3 Data Centre Operations Service

The Third Line Support Service provides technical support to the Data Centre Operations Service to
assist in the resolution of operational Incidents.

2.1.1.4 Application Support Service (Fourth Line)

The Third Line Support Service provides technical support to the Application Support Service (Fourth
Line) to assist in the development of Software fixes required for the Branch Infrastructure, HNG-X
Central Infrastructure or Post Office Cloud.

2.1.1.5 Removed by CCN1623b

2.1.1.6 Central Network Service

The Third Line Support Service provides technical support to the Central Network Service to assist in the
resolution of operational Incidents surrounding the loss of communications within the central Fujitsu
Services network.

2.1.1.7. Operational Business Change Service (Branch Change)

The Third Line Support Service provides technical support to the Operational Business Change (Branch
Change) Service to assist in the resolution of Software or remote technical Incidents which may
occurring during the delivery of changes, (including, for example: Branch openings, closures and moves)
to the Branch Infrastructure. For Operational Business Change (Branch Change) Service changes
involving Replaced Branch Infrastructure this support will be limited to the scope of Fujitsu Services
support for the HNG-A Application and its interactions with HNG-X Systems.

2.1.1.8 Reference Data Management Service

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The Third Line Support Service provides technical support to the Reference Data Management Service
to assist in the resolution of operational Incidents surrounding the distribution of Reference Data to the
Branch Infrastructure.

2.1.1.9 Security Management Service

The Third Line Support Service provides technical support to the Security Management Service to assist
in the resolution of operational Incidents surrounding the application of the required level of security
within the Branch Infrastructure and HNG-X Central Infrastructure, together with the provision of data
from the HNG-X Central Infrastructure where this cannot be readily obtained by the Security
Management Service.

2.1.1.10 Not used

2.1.1.11. Management Information Service

The Third Line Support Service provides technical support to the management information Service to
assist in the generation of management information in response to Ad-Hoc Data Requests where this
information is not readily available to the Management Information Service.

2.1.1.12 Reconciliation Service

The Third Line Support Service provides technical support to the Reconciliation Service to assist in the
resolution of Reconciliation Incidents where Transaction information is required following interrogation of
the HNG-X System. This will also include the re-sending of rejected Transactions to Post Office or
Clients following the resolution of a Reconciliation Incident.

2.1.1.13 Investigation and Resolution of New Software Incidents

The Third Line Support Service will investigate, in accordance with internal Fujitsu Services operational
procedures, any suspected new Software errors escalated from the Service Management Service or
Systems Management Service and provide Software fixes, as required, to either:

(a) an individual Branch or Counter Position;

(b) I anumber of Branches or Counter Positions;
(c) the entire Branch and all Counter Positions; or
(d) _ the Data Centres.

Ownership and management of the incident remains with the service desk that logged the incident.

When investigating incidents on the HNG-A Application installed on Counter Positions in Branches
Fujitsu Services staff shall only access storage areas on the Replaced Branch Infrastructure within the
access control mechanisms provided by the EUC Tower Contractor, as authorised by Post Office in
writing.

2.1.1.14 Production of workarounds

Following investigation of a Software error, the Third Line Support Service will produce, where possible,
a workaround which will enable the Branch to continue normal business in line with relevant processes or
will enable the Data Centre to continue processing.

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Where a workaround requires a Branch not to operate in accordance with relevant processes, this will be
handled through the Service Management Service in accordance with good service management
practice.

2.1.1.15 Manual Intervention in the Track & Trace Despatch Reports

The current track and trace despatch report has a ‘cut off function that a Branch Post Master is
supposed to perform at the end of each day. The Branch Post Masters currently print the report but some
Branches are not then cutting it off. This causes a build-up of items stored on the system.

The Third Line Support Service will, as an interim solution introduced into the Agreement in CCN1627a,
clear down any items in excess of 1500 at all outlets on a monthly basis.

2.1.2 Local Fujitsu Services POA Database and Intranet
Development and Support

The Third Line Support Service will provide support for the development and support of internal Fujitsu
Services POA databases and Intranet services required to provide reporting and management
information (where this is not available from the HNG-X System). These include (but are not restricted
to):

« KEL Web Service
e Peak incident management Web Service
e PODG reporter Web Service.

2.1.3. Service Management Portal Development and Support

The Third Line Support Service will provide support for the development and support of Fujitsu Services
POA intranet and the relevant portal arrangements which allow data to be available to the Service
Management Portal accessible to Post Office.

2.1.4 Support for Business Continuity testing

The Third Line Support Service will provide technical support for scheduled business continuity tests
undertaken in accordance with Schedule B2 and the CCD entitled: “HNG-X Business Continuity
Framework” (SVM/SDM/SIP/0001).

2.2 Service Availability

The Third Line Support Service is not directly available to Post Office. It is a service internal to Fujitsu
Services and is available 24 hours per day, but is provided only on an on-call basis outside of 09:00hrs
to 17:30hrs Monday to Friday and Bank Holidays.

2.3 Service Levels and Remedies

2.3.1 General Principles

This section is not applicable to the Third Line Support Service.

2.3.2 Service Level Relief

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This section is not applicable to the Third Line Support Service.

2.3.3 Rectification Plan
See paragraph 7.1 of Schedule C1 of the Agreement.

2.3.4 Service Levels for which Liquidated Damages Apply

There are no specific SLTs for which liquidated damages apply to this Service. However, the attainment
of SLTs for the Data Centre Operations Service may be directly related to the successful provision of
this Third Line Support Service should support be required.

2.3.5 Service Levels for which Liquidated Damages Do Not Apply

There are no specific SLTs for which liquidated damages do not apply that are linked directly with the
Third Line Support Service. However, the attainment of SLTs for the following Operational Services may
be directly related to the successful provision of this Third Line Support Service should support be
required:

(a) Data Centre Operations Service;
(b) Removed by CCN1623b;

(c) Central Network Service;

(d) — Removed by CCN1623b; and

(e€) Reconciliation Service.

2.3.6 Operational Level Targets

There are no OLTs associated with the Third Line Support Service.

2.3.7 Performance Metrics
There are no contractual performance metrics associated with the Third Line Support Service.

2.3.8 Design Targets

There are no design targets associated with the Third Line Support Service.

2.4 Service Limits and Volumetrics

There are no service limits or volumetrics associated with the Third Line Support Service.
2.5 Associated Assets and Licences

2.5.1 Assets

Assets relevant to the Third Line Support Service are set out within the Transfer Asset Register.

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2.5.2 Licences

The Third Line Support Service will ensure that all third party software licences from time to time
required by Fujitsu Services to provide the Third Line Support Service are maintained to ensure they are
current and valid for the version of third party software being used at the time. Where a licence or its
associated support and maintenance is due to expire, and Fujitsu Services determine that renewal is
required, the Third Line Support Service will ensure that the appropriate renewal process, as defined by
the appropriate software vendor or licensor, is completed and a new licence is concluded prior to the
expiry date to ensure continuity of the service.

2.6 Charges

2.6.1 Operational Fixed Charge

See Schedule D1 of the Agreement.

2.6.2 Operational Variable Charge

The Third Line Support Service Operational Variable Charge is calculated against the number of POL
Service Types supported as set out in paragraph 2.7 of Schedule D1 of the Agreement.

2.6.3 Additional Operational Variable Charge

There are no additional Operational Variable Charge applicable to the Third Line Support Service.

2.7 Dependencies and Interfaces with Other Operational
Services

Any changes agreed between Post Office and Fujitsu Services to the scope or availability of the Third
Line Support Service and/or any of the other Operational Services will be agreed in accordance with the
Change Control Procedure. This section describes the interfaces with other Operational Services as at
the Amendment Date, as follows:

2.7.1.1 Systems Management Service

The Third Line Support Service may be required to take on some of the monitoring functions completed
by the Systems Management Service and would receive a higher proportion of issues for resolution
should the Systems Management Service become unavailable.

2.7.1.2 Data Centre Operations Service

The Third Line Support Service supports the Data Centre Operations Service in the investigation of
Incidents surrounding the HNG-X Central Infrastructure. If the scope of the Third Line Support Service
was changed to remove this support requirement then Application Support Service (Fourth Line) may
have to take over this role.

2.7.1.3 Removed by CCN1623b

2.7.1.4 Central Network Service

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The Third Line Support Service supports the Central Network Service, in respect of Incidents
surrounding the Central Telecommunications Infrastructure. If the scope of the Third Line Support
Service changed, the Application Support Service (Fourth Line) might have to take over this role.

2.7.1.5 Application Support Service (Fourth Line)

The Application Support Service (Fourth Line) and the Third Line Support Service work closely together
in the identification and resolution of Software Incidents requiring bug fixes. If the scope of either the
Application Support Service (Fourth Line) or the Third Line Support Service is changed, the completion
of Software Incident bug fixes would be the responsibility of the remaining service.

2.7.1.6 Operational Business Change Service (Branch Change)

The Third Line Support Service supports the OBC (Branch Change) Service, in respect of changes to
the Branch estate. If the scope of the Third Line Support Service changed, the Application Support
Service (Fourth Line) might have to take over this role.

2.7.1.7 Reference Data Management Service

The Third Line Support Service supports the Reference Data Management Service in respect of
Incidents surrounding the distribution of Reference Data to the Branch Infrastructure. If the scope of the
Third Line Support Service changed, the Application Support Service (Fourth Line) might have to take
over this role.

2.7.1.8 I Security Management Service

The Third Line Support Service will support the Security Management Service in ensuring the
appropriate levels of security are met in respect of systems access. If the scope of the Third Line
Support Service changed, the Application Support Service (Fourth Line), the Systems Management
Service or the Data Centre Operations Service might have to take over this role.

2.7.1.9 Removed by CCN1623b

2.7.1.10 Management Information Service

The Management Information Service may request data to support MIS Reports delivered internally
within Fujitsu Services or to Post Office. If the scope of the Third Line Support Service changed, the
Systems Management Service or the Application Support Service (Fourth Line) may have to take over
this role.

2.7.1.11 Reconciliation Service

The Third Line Support Service supports the Reconciliation Service, in respect of Incidents affecting the
financial integrity of the HNG-X Application. If the scope of the Third Line Support Service changed, the
Application Support Service (Fourth Line) might have to take over this role.

2.7.1.12 Removed by CCN1623b

2.7.1.13 Removed by CCN1623b

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2.7.1.14 The Service Management Service

The Service Management Service has overall governance over the activities of the Third Line Support
Service. If the scope of the Third Line Support Service changed, the Service Management Service may
interface directly with the Application Support Service (Fourth Line).

The Third Line Support Service receives Incidents for investigation from the MAC Team Element of the
Service Management Service. Any changes to the scope of the Third Line Support Service may result in
Incidents being passed to the Application Support Service (Fourth Line).

2.8 Post Office Dependencies and Responsibilities

In addition to the generic responsibilities which shall apply as set out in Schedule A5 of the Agreement,
Post Office shall keep each base unit in each Branch switched on at all times unless specifically
requested to do otherwise by Fujitsu Services.

2.9 Business Continuity

This section defines the measures taken to minimise the risk of not being able to provide the Third Line
Support Service and sets out what Fujitsu Services is required to provide in terms of business continuity
specific to the provision of this Third Line Support Service. Details of the Third Line Support Service
Business Continuity Plan are set out in the Working Document entitled: “HNG-X Support Service
Business Continuity Plan” (SVM/SDM/PLA/0001).

2.9.1 Maintaining Access to Data and Systems

2.9.1.1 Incident Management System

In the event that the Third Line Support Service incident management tool (Peak) becomes unavailable,
failover will occur to a backup system within another Fujitsu Services site.

In the event that the backup system is unavailable, the Third Line Support Service will resort to manual
logging of Incidents until the system is restored and then input manually logged Incidents into the
restored system.

2.9.1.2 Live System Access and Repair Tools

In the event that live systems access and repair tools are unavailable in the primary Third Line Support
Service site, the Third Line Support Service will use suitably configured laptops and support the system
from home addresses.

2.9.1.3 Failover Timescale

Fujitsu Services shall ensure access to live systems access and repair tools via the laptop solution within
three (3) hours of the initial failure.

In the event of a long term failure (expected to last more than 24 hours) Fujitsu Services may choose to
setup 3” line support services at a suitable alternate site.

2.9.1.4 Testing

Fujitsu Services will carry out one (1) walkthrough and one (1) operational test per year covering the
Incident Management System, live system access and repair tools, subject to agreeing the actual dates
for such tests with Post Office, such agreement not to be unreasonably withheld. Such tests shall be

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carried out in accordance with the Working Document entitled: “HNG-X Business Continuity Test Plan”
(SVM/SDM/PLA/0003).

3 Not Used

3.1 Not Used

4 Documentation Set Supporting the Service

The document set listed in section 0.4 of this Third Line Support Service, Service Description supports
the delivery of the Third Line Support Service. Should any elements of the Third Line Support Service
be changed following agreement with Post Office, Fujitsu Services will ensure these documents are also
reviewed and amended where necessary in accordance with the changes agreed.

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