Operation analysis also involves a black box to white box
a system
The aforementioned alternation noted occurs in both the model levels and the system decomposition levels:
In model levels, specification at one level is realized in the next. Note, however, that the realization becomes the specification for the next lower level. So, specification at the context level is realized in the analysis level. This is turn is the specification for the design level.
In system decomposition level, specifications at the enterprise level [or level N] are realized in the system level [or level N + 1]. This set of realizations becomes the specifications for the subsystem level.
We discuss these transformations in detail in the following chapters.
Chapter 2. Definitions, design points, and key concepts | 33 |
