progr. |
from the architectural design perspective, layers are vertical structures Figure 9-4. Vertical layers consist of partitions of packages Section 9.1.2. Superimposing vertical structures of layers on horizontal structures of partitions creates a hierarchy of package dependencies. Three critical objectives of good architectural design of layers are that (см. Maciaszek L.A. and Liong B.L. 2005: Practical Software Engineering) |