| AAB | Application Architecture Blueprint |
|---|---|
| AALTO | fínsky realistický architekt (Alvar, 1898-1976) |
| AAS | Alternate Architecture Study |
| ABA | Agent Based Architecture |
| ABADIE | francúzsky architekt (Paul, 1812-1884) |
| ABBEMA | nemecký architekt |
| ACERO | španielsky staviteľ a architekt (Vicente, 1540-1602) |
| ADAM | škótsky architekt (Robert, 1728-1792) |
| ADD | Architectural Design Document |
| ADM | Architecture Development Method |