18:30 Wed 3 Dec 2025, BCS London & online: Renovate or Rebuild? Architectural techniques for the million-Euro tradeoff
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Immo Hüneke
Nov 13, 2025, 12:52:41 PM11/13/25
to BCS SPA SG, BCS SPA mailing list
BCS Software Practice Advancement specialist group
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SPA-407: Renovate or Rebuild? Architectural techniques for the million-Euro tradeoff
Speaker: Eoin Woods
When: Wednesday 3rd December 2025, 18:00 for 18:30 - 20:00 GMT
Where: BCS London, 25 Copthall Avenue, London EC2R 7BP and also online
Price: Free
Booking Link: https://3december2025spa.eventbrite.co.uk/
Your confirmation email will provide the next step to enable you to access the webinar. 48 hours and 1 hour prior to the event reminder emails will be sent to those registered, with the non-transferable URL needed to gain access. The session will be recorded. If you do not wish to feature in the recording, please keep your microphone muted.
AGENDA
* 6:00pm - networking in BCS London over refreshments
* 6:30pm - presentation begins
* 8:00pm - networking in BCS London (pizza & refreshments)
* 8:45pm at the latest: everyone off the premises (reconvene at The Old Doctor Butler's Head for more drinks & networking)
SYNOPSIS
At some point most of us will face the critical decision of whether to modernize a legacy system or rebuild it from scratch.
While these decisions can make or break budgets and careers, they are often driven by emotion, outdated assumptions and optimism, rather than facts, data and clear rationale.
This talk explains how an architecture-driven approach can help address the renovate-versus-rebuild dilemma, by moving beyond assumptions to use a decision framework based on proven architectural knowledge.
Whether you're facing a creaking monolith today or are drowning in distributed technical debt, this session will give you a starting point and an approach to to make and defend your own legacy system decisions with confidence.
ABOUT THE PRESENTER
Eoin Woods is an independent consultant in the fields of software architecture, green software and software engineering. He was formerly the CTO of Endava, where he was responsible for software engineering and capability development for over 10,000 delivery staff across the world.
Prior to Endava he developed databases, created security software and designed way too many systems to move money around. Outside his day job he is interested in software architecture, software security and sustainable (or "green") software.
He is a regular conference speaker, has co-authored three books on software architecture and was the recipient of the 2018 Linda Northrup Award for Software Architecture, from the Software Engineering Institute at CMU. His web site is www.eoinwoods.info.
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BCS SPA Home Page - http://bcs-spa.org/
Meetings Schedules
London - http://bcs-spa.org/index.php?page=london-meeting-programme
Cambridge - see http://http://softwareast.ning.com/events
Presentation materials from previous talks are available from the BCS SPA resources site: http://bcs-spa.org/resources.html
Also see YouTube playlist https://www.youtube.com/playlist?list=PLKBhokJ0qd3_wlvr0j85YhmNfNj8ZJ8M-
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SPA London Meetings Programme Organiser - Immo Huneke, Zuhlke Engineering Ltd. [mailto:Im...@Huneke.Co.UK]
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Forthcoming meetings: We're looking for volunteers to present or lead workshops on topics of interest to software practitioners. Please come forward with suggestions!
7 Jan 2026: SPA-408 (subject TBA)
========================================
SPA-407: Renovate or Rebuild? Architectural techniques for the million-Euro tradeoff
Speaker: Eoin Woods
When: Wednesday 3rd December 2025, 18:00 for 18:30 - 20:00 GMT
Where: BCS London, 25 Copthall Avenue, London EC2R 7BP and also online
Price: Free
Booking Link: https://3december2025spa.eventbrite.co.uk/
Your confirmation email will provide the next step to enable you to access the webinar. 48 hours and 1 hour prior to the event reminder emails will be sent to those registered, with the non-transferable URL needed to gain access. The session will be recorded. If you do not wish to feature in the recording, please keep your microphone muted.
AGENDA
* 6:00pm - networking in BCS London over refreshments
* 6:30pm - presentation begins
* 8:00pm - networking in BCS London (pizza & refreshments)
* 8:45pm at the latest: everyone off the premises (reconvene at The Old Doctor Butler's Head for more drinks & networking)
SYNOPSIS
At some point most of us will face the critical decision of whether to modernize a legacy system or rebuild it from scratch.
While these decisions can make or break budgets and careers, they are often driven by emotion, outdated assumptions and optimism, rather than facts, data and clear rationale.
This talk explains how an architecture-driven approach can help address the renovate-versus-rebuild dilemma, by moving beyond assumptions to use a decision framework based on proven architectural knowledge.
Whether you're facing a creaking monolith today or are drowning in distributed technical debt, this session will give you a starting point and an approach to to make and defend your own legacy system decisions with confidence.
ABOUT THE PRESENTER
Eoin Woods is an independent consultant in the fields of software architecture, green software and software engineering. He was formerly the CTO of Endava, where he was responsible for software engineering and capability development for over 10,000 delivery staff across the world.
Prior to Endava he developed databases, created security software and designed way too many systems to move money around. Outside his day job he is interested in software architecture, software security and sustainable (or "green") software.
He is a regular conference speaker, has co-authored three books on software architecture and was the recipient of the 2018 Linda Northrup Award for Software Architecture, from the Software Engineering Institute at CMU. His web site is www.eoinwoods.info.
------------------------------------------------------------------------
BCS SPA Home Page - http://bcs-spa.org/
Meetings Schedules
London - http://bcs-spa.org/index.php?page=london-meeting-programme
Cambridge - see http://http://softwareast.ning.com/events
Presentation materials from previous talks are available from the BCS SPA resources site: http://bcs-spa.org/resources.html
Also see YouTube playlist https://www.youtube.com/playlist?list=PLKBhokJ0qd3_wlvr0j85YhmNfNj8ZJ8M-
------------------------------------------------------------------------
SPA London Meetings Programme Organiser - Immo Huneke, Zuhlke Engineering Ltd. [mailto:Im...@Huneke.Co.UK]
------------------------------------------------------------------------
Forthcoming meetings: We're looking for volunteers to present or lead workshops on topics of interest to software practitioners. Please come forward with suggestions!
7 Jan 2026: SPA-408 (subject TBA)
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