two-tier application
[/tuː tɪər ˈæplɪˌkeɪʃən/]
nounpl: two-tier applications
aplicação de dois níveis
1. A software architecture model consisting of two layers: a client layer (presentation/user interface) and a server layer (database/business logic), where the client directly communicates with the server
The company migrated from a mainframe system to a two-tier application with a Windows client and SQL Server backend.
A empresa migrou de um sistema mainframe para uma aplicação de dois níveis com um cliente Windows e backend SQL Server.
2. Any system or policy that operates on two distinct levels or tiers, typically with different rules or access for each level
The new two-tier application fee structure offers basic and premium service levels.
A nova estrutura de taxa de aplicação de dois níveis oferece níveis de serviço básico e premium.
This is primarily technical jargon used in software development and IT infrastructure contexts. The term is universal across English and Portuguese-speaking tech communities, though its usage peaked in the 1990s-2000s before the rise of cloud computing and microservices architectures. In Brazilian tech companies, especially in São Paulo's financial district, it remains relevant for legacy system discussions and database administration courses.
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