1. DSC Delivery Sub-Group
03/09/2018

2. Agenda (1) Item Title Document Ref Lead 1. Welcome and Introductions
Verbal
Chair 2.
Meeting’s Minutes
For Approval 3.
AQ Defects
For Information
DSC Delivery Sub Group 3rd September 2018
Michele Downes 4.
Release 2 update
Christina Francis 5.
Release 3 update
Padmini Duvvuri 6.
June 2019 Release Scope
Support for ChMC Approval
Catrin Morgan/Emma Smith 7.
New Change Proposals
7a.
XRN4738 – Shipper portfolio update of proposed formula year AQ/SOQ
Simon Harris 8.
Change Proposal Initial View Representations
8a.
XRN4686 – Smart Metering Report
For Discussion
Rachel Hinsley 9.
Solution Options (IA)
9a.
XRN4670 – Reject a replacement read, where the read provided is identical to that already held in UK Link for the same read date
9b.
XRN4690 – Actual read following estimated transfer read calculating AQ of 1

3. Agenda (2) Item Title Document Ref Lead 10. Miscellaneous
DSC Delivery Sub Group 3rd September 2018
Various
10a.
Defect 838 – RGMA on Transfer Date
For Information
David Addison/Simon Harris
10b.
4650 – M-Number DVD Automation (Action Reference 0830)
Ellie Rogers/Simon Harris
10c.
Planned Extraordinary DSG meeting for CSS Consequential Change for either 11th or 16th October 2018
For Approval
Emma Lyndon
10d.
[OPERATIONAL_STATUS] Transfer Scenario Discussion (Action Reference:
For Discussion
Simon Harris
11.
Action Updates
For Review/Approval
12.
Defect Dashboard
Mark Tullett
13.
AOB
Verbal

4. 3. AQ Defects

5. AQ Defects Verbal update to be provided by Michele Downes
For more information, please refer to the Issue Register on Xoserve.com; click here to access it

6. 4. Release 2 Update

7. XRN4361 – UK Link Release 2 - Delivery Overall Project RAG Status
24th August
2018
Overall Project RAG Status G
Plan/Time
Risks and Issues
Cost
Resources
RAG Status
Status Explanation
Objective
Full project delivery of UK Link Future Release 2 Scope
Post Implementation Support
8 changes have completed first usage while 8 changes are in the process of completing first usage due to extra confidence runs due to defect fixes
XRN4299 – ‘No Reads’ report was delivered successfully on 22nd August and the historic data load for this change will commence on 27th August 2018 which is earlier to the planned date of September
XRN4449 – There was an issue reported on the one off Shipper report fix is scheduled to be deployed on 30th August. The respective Shippers have been kept updated on the details about the fix
Close down activities have commenced and is progressing as per plan
Risks & Issues
There is a risk that PIS exit is not achieved by the re-planned milestone date
Project delivery costs are tracking to approved budgets
Weekly monitoring of SME resources supporting multiple demands (e.g. BAU defects, Future Releases, etc) and all requirements are able to be met

8. UK Link Release 2 - Plan Primary Scope Stage Baseline Plan
Scoping
Initiation
Delivery
Realisation
Stage
Scope Prioritisation
Scope Defined
Funding
Analysis and HLD
Detailed Design
Build
Acceptance
Test
Performance
Regression
Imp.
PIS
Baseline Plan
07/06/17
25/07/17
09/08/17
Aug 17
20/11/17
29/01/18
18/05/18
22/06/18
29/06/18
30/07/18
Current Plan
11/10/17
10/01/18
13/12/17
16/01/18
(12/01/18)
16/02/18
23/05/18
02/11/18*
* PIS extended due to delivery of change variation on XRN4299
RAG Key – Milestones are end dates:
Planning/Milestone date to be confirmed
Milestone date forecast to be met
Milestone date forecast to be at risk
Milestone date forecast to be missed
Milestone completed

9. 5. Release 3 Update

10. Overall Project RAG Status
XRN4572 – UK Link Release 3
31st Aug
2018
Overall Project RAG Status G
Plan/Time
Risks and Issues
Cost
Resources
RAG Status A
Status Explanation
Objective
Full project delivery of UK Link Future Release 3 Scope
Extraordinary Change Management Committee on 23rd of July approved the split delivery of Release 3 scope into 13 CRs on 2nd of November and XRN 4454 to be delivered on 1st February 2019
The progress against each track is as below:-
Track 1 (13 Changes) – Build and System Testing complete, Acceptance testing in progress (10 complete) and on track to complete on 7th September. MT preparation ongoing. Slight delay in plan due to Environment and data build activities. No MT delivery impact envisaged
Track 2 (XRN 4454) – The revised Build Plan tracking to plan and complete. System Testing is now underway.
The Market Trials approach presented to DSG members Registration period for MT closed and 12 participants have registered for Track 1 MT. Weekly pre-meetings have been arranged from 17th August onwards to talk through specific MT topics in more detail. Data provision for participants being shared with registered parties to participate and use in MT Execution.
Business Change activities are in progress and a schedule for external training was presented to DSG on 6th August. The 2 training sessions completed for key CRs have been undertaken with a good attendance. Follow-on sessions are planned in October before Go-Live. Preparation for the customer day on 5th September is in progress
XRN 4658 (BER approved by ChMC on 23rd July) now included in R3 plan with build complete and testing in progress. Due to the late inclusion of change, a close monitoring of progress to enter MT is underway.
Risk to MT preparation timescales due to Environment technical and data issues – this is being managed
Go Live date dependent on close management of parallelism in plan, which has increased due to Build completion delays (being managed and is currently tracking Green) and other elements i.e. Agreement of MT approach/ Implementation plan agreement.
XRN 4658 may not meet all MT requirements on Day 1 (risk is being managed)
Full Delivery costs approved at ChMC in April Revision expected to accommodate XRN 4454 delivery date (ongoing discussions)
Greater resource needed for XRN4454 (both technical & SME) for fulfilling the need for extended build. Daily tracking of Build plan in place to ensure progressing to revised timelines and additional resource support to deliver XRN 4454
SME resource requirements for Build, ST and AT phases is being managed weekly with internal Xoserve teams.

11. UK Link Release 3 - Plan Primary Scope Scoping Initiation Delivery
Realisation
Stage
Scope Prioritisation
Scope Defined
Funding
Analysis and HLD
Detailed Design
Build & System Test
Acceptance
Test
Performance
Market Trials
Regression
Imp.
PIS
Track 1 Baseline Plan
10/01/18
07/02/18
11/04/18
13/04/18
04/06/18
13/08/18
07/09/18
1910/18
08/10/18*
22/10/18
02/11/18
04/01/18
Track 1 Current Plan
10/01/8
13/12/17
04/06/18*
19/10/18
Track 2 Baseline Plan
30/06/18*
24/09/18
05/11/18
N/A
14/12/18*
18/01/18
01/02/19
08/03/19
Track 2 Current Plan
05/10/18*
Planning/Milestone date to be confirmed
Milestone date forecast to be met
Milestone date forecast to be at risk
Milestone date forecast to be missed
Milestone completed
RAG Key – Milestones are end dates;
*Closedown expected to finish this week

12. 6. June 2019 Release Scope

13. June 19 Headlines
Initial June 19 scope was presented at ChMC on August 8th ’18.
Current Status of Changes Proposed for a June ‘19 Release:
Xoserve are continuing to complete the capture phase in full for all 12 changes allocated to June 19.
At present, there are:
8 changes are undergoing High-Level Solution Options Impact Assessments (HLSOIAs), to support release scoping by providing a high-level overview of the change, and the possible impacts of the proposed solution options.
2 changes have completed HLSOIA, and are now being reviewed internally prior to being distributed for industry review.
2 changes are pre-HLSOIA and are undergoing capture workshops or the scoping of possible solution options.

14. Current Capture Status Xos Proposed Prioritisation Score
Change Index
Proposed Release
XRN
Change Title
Current Capture Status
Xos Proposed Prioritisation Score
Perceived Complexity
June 19
4642
Address Maintenance Solution
Progressing through initial capture workshops
44%
Medium
4670
Reject a replacement read, where the read provided is identical to that already held in UK Link for the same read date
HLSOIA in progress
21%
Low
4687
PSR updates for large domestic sites
37%
4690
Actual read following estimated transfer read calculating AQ of 1
40%
4691
CSEPs: IGT and GT File Formats (CGI Files)
32%
4692
CSEPs: IGT and GT File Formats (CIN Files)
4693
CSEPs: IGT and GT File Formats Files Affected: CIC, CIR, CAI, CAO, DCI, DCO, CIN, CCN, CUN.
High
4694
CSEPs: IGT and GT File Formats (Create new data validations )
4676
Reconciliation issues with reads recorded between D-1 to D-5.
65%
4679
Requiring a Meter Reading following a change of Local Distribution Zone or Exit Zone
HLSOIA Completed
4044
Extension of ‘Must Read’ process to include Annual Read sites
35%
4645
The rejection of incrementing reads submitted for an Isolated Supply Meter Point (RGMA flows)
Scoping possible solution options

15. 7. New Changes Proposals

16. New Change Proposals
The objective of this slide is to inform DSG attendees of one new Change Proposal and it’s prioritisation score
7a. XRN4738 – Shipper Portfolio Update of Proposed Formula Year AQ/SOQ

17. 8. Change Proposal Initial Review Representations

18. 8.a. XRN4686 – Smart Metering Report

19. XRN4686 – Smart Metering Report
In the previous DSG, we presented the respective Change Proposal and asked DSG to confirm any additional requirements
The purpose of this section is for DSG to provide any additional requirements for this change
The associated action reference is 0831 and was identified during the 20th August meeting
The Change Proposal is attached to this slide for your reference

20. 9. Solution Options (IA)

21. This agenda item has been deferred to the next DSG
9a – Reject a replacement read, where the read provided is identical to that already held in UK Link for the same read date
This agenda item has been deferred to the next DSG

22. 9b. 4690 – Actual Read Following Estimated Transfer Read Calculating AQ of 1
The Impact Assessment for this change is not complete; therefore, there is no content to present.

23. 10. Miscellaneous

24. 10a. Defect 838 – RGMA on Transfer Date
This agenda item has been deferred to the next DSG

25. 10b. 4650 – M-Number DVD Automation (Action Reference: 0830)

26. Background Current May 2018 Sept 2018
M-Number files are currently sent via DVD or USB to customers each quarter.
These contain MPRN, MSN and address details.
Files = circa 4GB in total
Energy Industry, via the Market Intelligence Service project, have requested that this changes to a more frequent and secure service
A new download service has been proposed that will run monthly and will align with the Electricity Market
Current
May
2018
Sept
2018

27. Chosen Option - Huddle Benefits
Aligns and harmonises the service with electricity (Industry request)
Known and proven secure service
Cost effective and fast delivery
Process
Xoserve Procure Huddle (Cloud-based secure file sharing)
Wipro follow current process and drop files into a Xoserve shared area
Frequency will increase from quarterly to monthly
Xoserve data services team to upload files to Huddle
Xoserve to notify customer via Huddle that files are ready
Customers can access Huddle to download files
Each customer will have usernames and passwords
A unique pin will be sent to a users mobile on each logon

28. Verbal update to be provided by Emma Lyndon
10c. Planned Extraordinary DSG Meeting for CSS Consequential Change for either 11th or 16th October
Verbal update to be provided by Emma Lyndon

29. 10d. [OPERATIONAL_STATUS] Transfer Scenario Discussion
Action ( DSG)

30. Overview
[Operational_Status] is an Optional field located in the S75 record (RT_S75_METER_POINT_DETAILS) that is sent out in a number of outbound SPA file flows…
.NMR (Enquiry/Nomination Response File) to Proposing Shipper
.NFR (Nomination Referral Response File) to Proposing Shipper
.CFR (Confirmation Response File) to Incoming Shipper
.TRF (Transfer Notification File) to Incoming Shipper
Ticket was raised in May-18 stating that the [Operational_Status] field within the .TRF file was being left as NULL where a date is expected to be present
Defect 1030 was subsequently raised and deployed into production to fix the issue to ensure the value is populated accordingly going forward
Data that currently feeds the [Operational_Status] field (where present) indicates the status of the Meter (Live, Isolated or Pending Isolation)
However, some confusion as to what data is contained within the field [Operational_Status] based on the file format description and how it is being used by the Shipper community has been raised
Action 0833 logged at the previous DSG ( )

31. RT_S75_SMP_DETAILS TRANSACTION_TYPE METER_POINT_REFERENCE
METER_LOCATION_CODE
METER_SERIAL_NUMBER
SUPPLY_METER_POINT_AQ
DRE_SERIAL_NUMBER
DRE_UNIQUE _NUMBER
METER_LINK_CODE
CORRECTION_FACTOR
OPERATIONAL_STATUS
METER_MECHANISM
NUMBER_OF_DIALS_OR_DIGITS
PREVIOUS_SUPPLIER_SHORT_CODE (.TRF file only)
FORMULA YEAR SMP AQ
AMR_INDICATOR
DEFINITION: Indicates the current operational status of the Meter Point, be it Live, Isolated or Pending Isolation.
CONTEXT: Status can be derived by evaluating the value of the field. Live -Not Populated, Isolated -Populated with date in future.
DEFINITION: Indicates the current operational status of the Meter Point, be it Live, Isolated or Pending Isolation.
CONTEXT: Status can be derived by evaluating the value of the field. Live -Not Populated, Isolated -Populated with date in future.
DEFINITION: Indicates the current operational status of the Meter Point, be it Live, Isolated or Pending Isolation.
CONTEXT: Status can be derived by evaluating the value of the field. Live -Not Populated, Isolated -Populated with date in future.
No amendments the population of the [Operational Status] field within the S75 record was introduced during Nexus

32. Transfer Event Details
Incoming Shipper
Inbound I
Outgoing Shipper O
Outbound
Transfer Effective Date
(D-2)
TRF O
Transfer Notification (S15) - Transfer of Ownership
NOM I
Nomination Request (S47 / S48)
CNF I
Confirmation Request (S38 / S42)
NMR O
Nomination Response (S59)
CFR O
Confirmation Response (S07) - Accepted
TRF O
Ceased Responsibility Notification (S88)
CFR O
SMP Withdrawal Notice (S10)
MRI O
Meter Read & Access Instructions (U06 / N90)
[Supply Meter Point Status] is not directly provided in any File/Record as part of a Transfer Event
DE/EX is represented by the .NOM/.CNF files being rejected.
LI/CA/CL are treated as live (in case of SPA) but no distinction is provided in any response files
[Supply Meter Point Status] can be viewed in DES (Community & Portfolio view) & the .NMS File was introduced at Nexus to inform of changes to this data item
[Meter_Status] is provided in the MRI file in the U06 / N90 Record(s)
VALUES: LI - Live, FA - Faulty, IN - Inactive, CU - Cut off Meter, CL - Clamped, CA - Capped, SP - Spin Cap, RE - Removed, OT - Other, UN – Unknown, NI - Not Installed

33. For Discussion
DSG members are requested to check how [Operational_Status] field within the S75 record is being interpreted and used within their individual organisations, in light of the above
Is the purpose of the [Operational_Status] field being satisfied by how it is currently being populated?
Is the [Operational_Status] field description misleading to it’s current purpose?
Is there any appetite to look at adding the [Supply Meter Point Status] into the S75 Record to add clarity, showing if the SMP is Live, Capped, Clamped, Dead or Extinct?

34. 11. Actions

35. Actions
All outstanding DSG actions are listed on the following spreadsheet:
Further updates will be made during the meeting; these updates will be reflected in the post-meeting minutes

36. 12. Defect Dashboard

37. Newly Discovered Defects
Defect Summary Stats
Stats as per HPQC extract taken on Thursday 30th August 2018
Defect Landscape (Open/Closed vrs PGL/New)
PGL Defects
Newly Discovered Defects
GRAND RELEASE TOTALS D1 D2 D3 D4 D5
TOTAL
Not Set
Urgent Fix (D1/D2)
Amendment Invoice Task Force 2 23 6 1 33
R th September 3 8 11
Requires CR 5 7
Release Planning
Currently Unallocated 25 30 57 59
TOTAL OPEN 62 47
115
117
Closed as Rejected 15 24 26 20 83
Closed as CR 10 4 17
Closed - Deployed to Production 28 58 9
102
209
359
146 12
742
844
TOTAL CLOSED 34 80
136
220
389
169
808
944
GRAND TOTAL 31 74 16
138
222
447
213 13
923
1061

38. R2.04
The below defects were deployed as part of R2.04 on Friday 24th August.
Defect ID
Status
Description
Release
959
Closed - Deployed to Production
CRS files failed in Market flow due to missing mandatory field “ Connected System Operator Telephone Number “ in U74 segment. even if Telephone number is present in the system.
R2.04
1018
SAP: Shared Supply SNR CYM value issue
1023
SAP-SSMP SNO- MPRN rejected for CLS00002 incorrectly
1068
SAP: RU07 Exception - ONUPD request received for Meter Non billing critical update along with IHD update by providing same serial number for both meter
1070
SAP ISU AQ- T51 segment sent in NRL file for OS,OB,OA,OC Switch Status
The below defects were deployed as Urgent.
Defect ID
Status
Description
Deployment Date
1064
Closed - Deployed to Production
K89 record, the optional fields not populated
11/08/2018
1113
SAP: Post Smear Audit Report Issue
16/08/2018
1132
SAP BW - Ticket to be raised BW team - AQ tracker report
21/08/2018

39. Amendment Invoice Impacting Defects
Defect ID
Status
775
Deployed with R1.13
771
Deployed with R1.20
881
933
Deployed with R1.21
910
849
936
747
Deployed 10/05/2018
908
919
Deployed with R1.22
755
Deployed 26/06/2018
861
Deployed with R1.23
848
884
937
Deployed 08/08/2018
1013
Deployed with R2.01
1014
985
Deployed with R2.02
1064
Deployed 11/08/2018
1113
Deployed 16/08/2018
Defect ID
Status
720
Assigned
1052
DRS Needed
743
Awaiting CAB
1054
New
761
1065
838
1075
859
1085
DRS completed
863
Retest Failed
1086
886
1108
Ready For Assurance
906
1109
920
1114
947
1116
958
1117
982
1122
1000
DRS in progress
1123
1015
1124
1016
1125
1045
1136
1048
1137
1049
1138
Key:
Amendment Invoice Task Force Defects
Standard Defect
There are currently 2, D1/D2 defects which are Amendment Invoice impacting: 886 and 863.
Once these are assured, we will deploy and inform you.

40. 13. AOB

41. AOB Item – Incorrect S72 occurrence within the ANT Hierarchy

42. Incorrect S72 occurrence within the ANT Hierarchy
What’s the problem?
The ANT hierarchy incorrectly states that there can be up to 1000 possible occurrences for the S72 record. As specified within the UK Link Manual (UK Link Standards Guide) there can be up to 15 possible occurrences rather than up to 1000
Please note, up to 15 occurrences is the way the system works, it is purely the hierarchy and file format stipulating a different occurrence
The ANT hierarchy and the S72 file format documents therefore require a documentation change to update the incorrect possible occurrence information. As this is a documentation change only, we do not intent to increment the version against these documents.
What do we suggest to resolve this problem?
We intend to include this change within the September Change Pack for the industry to review and provide any comments
Following this, the change would be included in the October Change Management Committee (ChMC) meeting for approval
We are suggesting this change could be implemented alongside Release 3 in November
Views from DSG:
Regarding the impact of this change
When does DSG think this documentation change can be implemented?
What does DSG think of the above approach?
Does DSG have any questions or concerns?

43. Use of up to date Forecast weather data in first NDM Nominations Run
AOB - XRN4717
Use of up to date Forecast weather data
in first NDM Nominations Run

44. Story so far…
Change Proposal raised to look at the possibility of using up to date weather forecast data in first NDM nomination
XRN4717 discussed at ChMC on 8th August and (due to there only being one solution option) approved to proceed to Solution Review
Change Pack was issued out for review on 10th August for a 10 day review
Communication Reference: RJ - RH
Solution Review Closeout: 24th August
Following discussions with reviewers it was agreed that the Solution Review Closeout deadline be extended to the 11th September
Communication Reference: RJ - SH
Solution Review Closeout: 11th September

45. | Time | Today | Tomorrow |
Current Process
Transmission
(NTS)
Gemini
MIPI
AMT
Distribution
Networks (DNs)
.CWF File
08:00
12:00
15:00
23:00
NDM Nom
Contract
.FWV File
Approx (W10) (W11)
| Time | Today | Tomorrow |
| 07:38 | YES | NO |
| 11:38 | YES | YES |
| 14:38 | YES | YES |
| 22:39 | YES | YES |
Xoserve
UKL
Weather Service
Provider (WSPs)
.FWV File
LDZ Level
Temp: 05:00, 07:00, 09:00, 11:00
13:00, 15:00, 17:00, 19:00, 21:00
23:00, 01:00, 03:00
Wind: 07:00, 11:00, 15:00, 19:00
23:00, 03:00
CWV
FTP
EFT

46. | Time | Today | Tomorrow |
Proposed Process 6
Transmission
(NTS) 8
Gemini
MIPI
AMT
Distribution
Networks (DNs)
.CWF File
08:00
12:00
15:00
23:00
NDM Nom 7 1
Contract
.FWV File
Approx (W10) (W11)
| Time | Today | Tomorrow |
| 07:38 | YES | YES |
| 11:38 | YES | YES |
| 14:38 | YES | YES |
| 22:39 | YES | YES | 4
Xoserve
UKL
Weather Service
Provider (WSPs)
.FWV File
LDZ Level
Temp: 05:00, 07:00, 09:00, 11:00
13:00, 15:00, 17:00, 19:00, 21:00
23:00, 01:00, 03:00
Wind: 07:00, 11:00, 15:00, 19:00
23:00, 03:00
CWV 5 2
FTP
EFT 3