Page 299 - Mechanical Engineers' Handbook (Volume 2)

290 Analysis, Design, and Information Processing

2. To determine the specific analytic algorithms to be implemented by the system or
process
3. To determine the specific behavioral situation and operational environment in which
the system or process is to operate
4. To determine the specific leadership requirements for use of the system in the op-
erational environment extant
5. To determine specific hardware and software implementation requirements, including
type of computer programming language and input devices
6. To determine specific information input requirements for the system or process
7. To determine the specific type of output and interpretation of the output to be ob-
tained from the system or process that will result from the design procedure
8. To reevaluate objectives obtained in the previous phase, to provide documentation of
minor changes, and to conduct an extensive reexamination of the effort if major
changes are detected that could result in major modification and iteration through
requirements specification or even termination of effort
9. To develop a preliminary conceptual design of, or architecture for, prototype aid that
is responsive to the requirements specifications
The expected product of this phase is a set of detailed design and testing specifications
that, if followed, should result in a usable prototype system or process. User group confidence
that an ultimately useful product should result from detailed design should be above some
threshold or the entire design effort should be redone. Another product of this phase is a
refined set of specifications for the evaluation and operational deployment phases.
If the result of this phase is successful, the detailed design, testing, and implementation
phase is begun. This phase is based on the products of the preliminary conceptual design
phase, which should result in a common understanding among all interested parties about
the planning and decision support design effort concerning the following:

1. Who the user group or responsive stakeholder is
2. The structure of the operational environment in which plans, designs, and decisions
are made
3. What constitutes a plan, a design, or a decision
4. How plans, designs, and decisions are made without the process or system and how
they will be made with it
5. What implementation, political acceptability, and institutional constraints affect the
use of the system or process
6. What specific analysis algorithms will be used in the system or process and how
these algorithms will be interconnected to form the methodological construction of
the system or process

Detailed Design, Integration, Testing, and Implementation Phase
In the third phase of design, a system or process that is presumably useful in the operational
environment is produced. Among the objectives to be attained in this phase are the following:
1. To obtain and design appropriate physical facilities (physical hardware, computer
hardware, output device, room, etc.)
2. To prepare computer software