1.
16/12/2022
5 Guiding Principles To
Practical Digital Ecodesign
Apidays Paris 2022
Florimond Manca
Software developer, Fairness

2.
2023 SERIES OF EVENT
New York
May 16&17
Australia
October 11&12
Singapore
April 12&13
Helsinki & North
June 5&6
Paris
SEPTEMBER
London
November
15&16
June 28-30
SILICON VALLEY
March 14&15
Dubai & Middle East
February 22&23

3.
16/12/2022 Apidays Paris 2022 - Florimond Manca 2
« Where do I start ? »

4.
16/12/2022 Apidays Paris 2022 - Florimond Manca 3

5.
16/12/2022 Apidays Paris 2022 - Florimond Manca 4
Principle #1
Learn the basics
A short recap
on what matters...

6.
16/12/2022 Apidays Paris 2022 - Florimond Manca 5
^ Source: Planetary boundaries, Steffen et al 2015,
Persson et al 2022, Stockholm Resilience Center
< Credit : TSMC, Ltd
^ Surroundings of the Ajka
aluminum factory,
Hungary, 2010
Digital infrastructure is critical and depleting

7.
16/12/2022 Apidays Paris 2022 - Florimond Manca 6
Source: Environmental impact assessment result for a
personal computer, Choi et al, 2006
Source: The environmental footprint of the digital world, GreenIT.fr,
2019
See also: Controverses minières, SystExt, 2021 (FR)
User equipment, networks, datacenters
Avoid manufacturing of new equipment

8.
16/12/2022 Apidays Paris 2022 - Florimond Manca 7
Principle #2
Start from existing
practices
Good news, bad news...

9.
16/12/2022 Apidays Paris 2022 - Florimond Manca 8
Ecodesign x Engineering practices
Resource utilization
Performance efficiency
(ISO 25010)
Time behavior
Capacity
Leverage existing tools web.dev, Lighthouse, Yellow Lab Tools...
Rebound effects?
(ISO 14006)

10.
16/12/2022 Apidays Paris 2022 - Florimond Manca 9
Principle #3
Question the needs
« Do we really need…? »

11.
16/12/2022 Apidays Paris 2022 - Florimond Manca 10
Story time

12.
16/12/2022 Apidays Paris 2022 - Florimond Manca 11
Bringing everyone at the table
Users
🤝
Engineers
UX designers
PO / PM

13.
16/12/2022 Apidays Paris 2022 - Florimond Manca 12
Principle #4
Beware measurement
bikeshedding
« What one cannot measure, one
cannot improve. »
…Or can we?
Source : Wikiquote

14.
16/12/2022 Apidays Paris 2022 - Florimond Manca 13
Measurements...
Greenhouse gases (GHG)
Water consumption
Primary energy
Ecotoxicity
Abiotic resource depletion
✅
❔
❔
❔
❔
Estimates
Lifecycle
analysis (LCA)

15.
16/12/2022 Apidays Paris 2022 - Florimond Manca 14
Source: Boavizta,
Multicriteria server impacts,
dec 2022
See also: boaviztapi
See also: Scaphandre

16.
16/12/2022 Apidays Paris 2022 - Florimond Manca 15
Ecodesign is (a lot of) common sense
Squeeze that brain juice!

17.
16/12/2022 Apidays Paris 2022 - Florimond Manca 16
Principle #5
Aim for the radical shift
Ascending the gradient of
ecodesign radicalism

18.
16/12/2022 Apidays Paris 2022 - Florimond Manca 17
Gradient of ecodesign radicalism*
L1 L2 L3 L4
Optimization
Technical
redesign
Functional
innovation
Slow tech
(Radical shift)
*Inspired by GreenIT.fr, Sobriété : manifeste pour une slow.tech, oct 2022
●
SQL queries
●
Code bottlenecks
●
Data
compression
●
Reduced storage
●
...
●
Modular
architecture
●
Pull vs Push
●
Extensive
caching
●
...
●
Cross-functional
cooperation
●
Simplified user
journeys
●
Agressive feature
cuts
●
...
Mix of:
●
High-tech
●
Low-tech
●
Social innovation

19.
16/12/2022 Apidays Paris 2022 - Florimond Manca 18
Learn the basics
Expand existing practices
Question the needs
Aim for the radical shift
Summary
#1
#2
#3
#4
#5
Beware measurement bikeshedding
Further resources
●
ISO 14006
●
GreenIT.fr reports and studies (fr/en)
●
ecoindex.fr (fr)
●
MiNumEco (fr)
●
Gauthier Roussilhe’s work (fr/en)
●
supertanuki/numeriqueEcoResponsable (fr)

20.
16/12/2022 Apidays Paris 2022 - Florimond Manca 19
Q&A
@florimondmanca
@fairnesscoop
florimondmanca/talks