Lightning Talks Tulio Paschoalin Leao – Software Engineering Manager October 28th, 2021 Tackling Technical Debt: Hello Junior Developers!© 2021 Cadence Design Systems, Inc. All rights reserved. 2 Photo by Cadence Design Systems, Inc. All rights reserved. 6 Senior Devs Junior Devs Key Concepts • Technical Debt • Resource Allocation “Free time” Knowledge© 2021 Cadence Design Systems, Inc. All rights

that it may not be in a consistent state, but it is a bug for a client to contradict itself.Technical debt is quantifiable as financial debtMeir M Lehman Programs, life cycles, and laws of software .html Technical Debt is a wonderful metaphor developed by Ward Cunningham to help us think about this problem.Martin Fowler martinfowler.com/bliki/TechnicalDebt.html Like a financial debt, the technical technical debt incurs interest payments, which come in the form of the extra effort that we have to do in future development because of the quick and dirty design choice.Martin Fowler martinfowler.

我们期望的演进 OPPORTUNITY LOST Time VALUE Cost Technical Debt RELEASE TO MARKET RELEASE TO MARKET Months to Years Cost Multiple Iterative Iterative Releases Time VALUE Days to Weeks Technical Debt OPPORTUNITY LOST 我们现实的演进 架构管理 拉馬克在1809年出版的《动物哲学》（Philosophie Zoologique） 适者生存 演进式架构 EVOLUTIONARY

Analysis 11 © 2018 Stericycle, Inc.Regulatory Standards & Documents 12100+ Standards, Documents and Technical reports Software Development in Medical Devices 13 www.medicaldevicehq.com www.jhc-technology vulnerabilities are introduced ❖ All new security hotspots are reviewed ❖ New code has limited technical debt ❖ New code has limited duplication ❖ New code is properly covered by testsContinuous Testing certified (3rd party vendors), ... ❖ What can help: ➢ Modular and decoupled architecture, Frequent tech debt reviews, Security/Compliance tracking, Established testing framework for upgrades, Proper dependency

Refactoring Upgrading Migrating Debugging Adding tests Writing documentation Resolving technical debt “The only constant in life is change.” - Heraclitus5 Aurora Innovation Types of Change Fixing accountability for software quality. reward continuous improvements and actively share about technical debt. Commitment Teams need to commit to continued investment in maintaining software quality and

Remind about Evolution Identify Technical DebtWhat-If? Did you consider? Suggest Better ways Ask about Simplicity Remind about Evolution Identify Technical DebtDoesn’t really happen Reviewer Ineffective Reviewer unaware of functionality Transactional involvement only Focus on technical aspects aloneToo Late for idea exchanges At least, no bouncing ideas off each otherModernisation/gradual mistakesHow about… Discuss & implement Better ways Ensure Simplicity Enable Evolution Address Technical Debt Evaluate more options!High- Ownership Functional Knowledge Code Awareness Code Familiarity

else? • “This is a proxy, this is a memoized fetcher, this is a façade…” • How do we define technical debt? • Today: entropy created in order to deliver something quickly • Tomorrow: entropy that is

1971 - is very close to the published form of the paper which was submitted on 16 February 1972. The debt, among others, to Milner's work is acknowleged but the paper here presents the proof method much

the exercise sheet, and love06 _ monads_homework_sheet.lean is the homework sheet. We have a huge debt to the authors of Theorem Proving in Lean [1] and Concrete Semantics: With Isabelle/HOL [27], who proofs, here is a version of the proof with dependently typed pattern matching on hn : even n: For technical reasons, we must pattern-match on or.inl and or.inr, which are constructors and which take a single add_assoc, add_group.zero_add, and add_group.add_left_neg correspond to the three group axioms. For technical reasons, we must also prove the redundant property add_group.add_zero. The type int2 can be registered

within the django CMS, we suggest using Haystack together with django-cms-search. 5.4 Reference Technical reference material. 80 Chapter 5. Table of contents django cms Documentation, Release 3.0.19.dev1 0.19.dev1 Development is led by a team of core developers, and under the overall guidance of a technical board. All activity in the community is governed by our Code of Conduct. 5.5.1 Development of django CMS both as a high-quality technical product and as a healthy open source project. Divio’s role in steering the project’s development is formalised in the django CMS technical board, whose mem- bers are