Even after you did the initial work and had a specific architecture in mind, you need to continuously monitor how the system evolves and whether it still aligns with its users' needs, as those may also change during the development and lifetime of your software. Software decay, sometimes also called erosion, occurs when the implementation decisions don't correspond to the planned architecture. All such differences should be treated as technical debt.
Germany
Slovakia
Canada
Brazil
Singapore
Hungary
Philippines
Mexico
Thailand
Ukraine
Luxembourg
Estonia
Lithuania
Norway
Chile
United States
Great Britain
India
Spain
South Korea
Ecuador
Colombia
Taiwan
Switzerland
Indonesia
Cyprus
Denmark
Finland
Poland
Malta
Czechia
New Zealand
Austria
Turkey
France
Sweden
Italy
Egypt
Belgium
Portugal
Slovenia
Ireland
Romania
Greece
Argentina
Malaysia
South Africa
Netherlands
Bulgaria
Latvia
Australia
Japan
Russia