1.
Scaling Legacy
Agile Venture Milano 2020
Giulio Roggero

2.
3 dimensioni di scaling

3.
Usage by a Single User
Num of Customers Num of Features

4.
Usage by a Single User
Num of Customers Num of Features
Size of Data Managed
Scale your Data Strategy
Scale your Team
Num of Deployed Features per IterationNum of Concurrent Users
Scale your Services
Cloud Native
Data Mesh
Agile Scaling

5.
Cloud Native

6.
Evolutionary
Microservices
architectural style
Polyglot to
guarantee
evolution
Decentralized to
allow scaling
Evolve with the
growth of business
Favor reuse to
reduce costs

7.
Interconnected
API as a Product
Paradigm
Ease integration
to simplify projects
Easy to reach
to monetize data
Enable b2c/b2b channels
to improve partnerships
“Secure by design”
to reduce risks

8.
Agile and DevOps to support
the digital life cycle
Managed
Centralized
Governance to control
all your digital project
Automate processes
and accelerate
development
Monitor and analyze
applications to improve
experiences
Define guidelines to
guarantee quality

9.
Agile Scaling

10.
Less

11.
Spotify Model

12.
SAFe

13.
Data Mesh

14.
https://martinfowler.com/articles/data-monolith-to-mesh.html
Zhamak Dehghani
Monolithic Data Platform

15.
https://martinfowler.com/articles/data-monolith-to-mesh.html
Zhamak Dehghani
Data Mesh

16.
Cosa impedisce lo scaling?

17.
Non migliorare in modo
continuo

18.
Immagine di Daniel Okwufulueze
https://medium.com/the-andela-way/what-technical-debt-is-and-how-its-measured-ff41603005e3

19.
Legacy
Qualsiasi codice che è in produzione e non evolve

20.
Usage by a Single User
Size of Data Managed
Scale your Data Strategy
Data Mesh
Data Chaos
Num of Features
Scale your Team
Num of Deployed Features per Iteration
Agile Scaling
Silos
Num of Customers
Num of Concurrent Users
Scale your Services
Cloud Native
Monolith
Impediments

21.
Monolith
Scala tutto insieme
● Vincolato
tecnologicamente nella
sua evoluzione
● Rilasci complessi e lenti
● Rischi di delivery

22.
Silos
Project A
Outsourcer
PM
Silos Silos Silos Silos
Security
Infrastructure/Architecture
Business
PM PM PM PM
PMO

23.
Data Chaos
● Responsabilità del dato poco chiara: chi è il
proprietario del dato?
● Dati non consistenti e duplicati
● Assenza di chiavi di business univoche
(esempio di anagrafica)
● Dati allineati non in tempo reale da ETL
(giornalieri, settimanali, mensili)
● Tools di gestione eterogenei
● Difficoltà di svecchiamento dei dati non più
necessari

24.
Come scalare il legacy?

25.
Usage by a Single User
Num. of Customers Num of Features
Size of Data Managed
Scale your Data Strategy
Scale your Team
Num. of Deployed Features per IterationNum. of Concurrent Users
Scale your Services
Cloud Native principles
Data Mesh
Less (and others)
Data Chaos
SilosMonolith
Data Streams
Evolutionary
Architectures
Culture

26.
Dev Team Dev Team Dev Team
DevOps Value Stream Platform
Create, Deploy and Monitor
Event Based Integration LayerService Integration Layer
High Performance Data Store
Microservices/Miniservices
APIs
Channels (Mobile, Voice, IoT, Web)
Legacy Applications and DBs
Run and Operate

27.
Culture
From To
Il “noi” e “loro” rallenta le decisioni e aumenta i costi. Riorganizzarsi e allinearsi con le esigenze dei
clienti finali diventa più efficace e riduce costi aumentando la velocità di delivery.
https://www.slideshare.net/GiulioRoggero/microservices-microfrontends-and-feature-teams
Sam Newman

28.
Data Streams (Fast Data)
data stream
B2x Channels
Machine
Learning
Analytics
Business Logic
Historical
Reports

29.
Stimulus from Data Streams
Stimulus
Data Stores
Analytics/Machine Learning
Event Based Integration LayerService Integration Layer
High Performance Data Store
Microservices/Miniservices
APIs
Channels (Mobile, Voice, IoT, Web)
Legacy Applications and DBs

30.
Come avviare questa evoluzione?

31.
Un cambio di paradigma!
L’azienda costruisce il suo business su una
piattaforma digitale che sia:
● incrementale;
● evolutiva;
● governata in modo aperto e cooperativo.

32.
DevOps Value Stream Platform
Self-service Infrastructure Platform
Self-service Data Infrastructure
Self-service Microservice Ecosystem Platform
Here you provide the IT
capabilities to build and operate
the digital business
Product Product Product Product
API as a ProductHere you create your digital
products
Mobile App Bot IoT
Here you interact with your
customers

33.
Product A Product B Product C Product D
Platforms
Teams Teams Teams Teams

34.
Product A Product B Product C Product D
Products
Governance
Platforms
Platform Governance
Teams Teams Teams Teams

35.
Product A Product B Product C Product D
Products
Governance
Platforms
Platform Governance
Teams Teams Teams Teams Digital Business
Architects
Software
Operations and
Security

36.
Product A Product B Product C Product D
Products
Governance
Platforms
Platform Governance
Teams Teams Teams Teams Digital Business
Architects
Software
Operations and
Security
Mantainers
Committers
Users
Core Team

37.
Product A Product B Product C Product D
Products
Governance
Platforms
Platform Governance
Teams Teams Teams Teams Digital Business
Architects
Software
Operations and
Security
Mantainers
Committers
Users
Core Team
Architects

38.
Product A
PO
SM
Outsourcer
Arch
Infra
Sicurezza
Area A
Area B
Area C
Area D
Product B
PO
SM
Outsourcer
Arch
Infra
Sicurezza
Area A
Area B
Area C
Area D
Product C
PO
SM
Outsourcer
Arch
Infra
Sicurezza
Area A
Area B
Area C
Area D
Product D
PO
SM
Outsourcer
Arch
Infra
Sicurezza
Area A
Area B
Area C
Area D
Digital Business
Software
Operations and
Security
Products
Governance
Platforms
Platform Governance
Mantainers
Committers
Users
Core Team
Digital Hub
Architects

39.
Da Silos a Piattaforma
Oggi
Prodotto A
Prodotto A
Progetto A
PO (business)
SM Tech
Outsourcer
Arch
Infra
Sicurezza
S S S S
Passaggio a part-time delle
figure rilevanti di ogni area
all’interno dei team di
progetto per i prodotti digitali
rilevanti del 2020.
Adozione di Scrum e
coinvolgimento del Business
Portfolio delle iniziative con
progetti “tradizionali” e
progetti Scrum monitorati in
un sol modo (EVM)
Architetture allineati con la
strategia di business
6 mesi
Digital Business*
Architects
Operations and
Security
Products
Governance
Software
Part-time *invitati
Project A
Outsourcer
PM
Silos Silos Silos Silos
Security
Infrastructure/Architecture
Business
PM PM PM PM
PMO

40.
Product A
PO
SM
Outsourcer
Arch
Infra
Sicurezza
Area A
Area B
Area C
Area D
Product B
PO
SM
Outsourcer
Arch
Infra
Sicurezza
Area A
Area B
Area C
Area D
Product C
PO
SM
Outsourcer
Arch
Infra
Sicurezza
Area A
Area B
Area C
Area D
Product D
PO
SM
Outsourcer
Arch
Infra
Sicurezza
Area A
Area B
Area C
Area D
Digital Business
Software
Operations and
Security
Products
Governance
Platforms
Platform Governance
Mantainers
Committers
Users
Core Team
Digital Hub
Architects

41.
https://resources.mia-platform.eu/paper-infrastrutture-invisibili
Giulio Roggero
Founder & CTO Mia-Platform
Partner & CS Intré
Founder & Advisor Agile Reloaded