This report proposes a methodology for applying weighting factors to system effectiveness quantification expressions of mathematical models for multi-function situations. Since the circumstances for applying "W" and "U" terms are almost unlimited, no attempt is made to show all possible applications of these terms. Rather, the basic principles are discussed and illustrated by simple examples in order to keep the focus on the principles for quantifying "W" and "U". The methods that are used at lower levels of the mission-function hierarchical tree are equally valid at higher levels. Consequently, the extension of these basic methods to more complicated situations was deliberately excluded from the content of this report.
This standard is applicable to the engineering or the reengineering of: a Commercial or non-commercial systems, or portions thereof; b Any system, small or large, simple or complex, software-intensive or not, precedented or unprecedented; c Systems made up of hardware, software, firmware, personnel, facilities, data, materials, services, techniques, or processes (or combinations thereof); d A new system or a legacy system, or portions thereof. The requirements of this standard, or a designated subset, are intended to be applied by projects establishing policies and procedures for project implementation of the adopted process and process elements of this standard. The requirements of this standard may be tailored as follows: a Processes – Processes may be tailored to be applicable for a given type of project or system.
This standard is applicable to the engineering or the reengineering of: a. Commercial or non-commercial systems, or portions thereof; b. Any system, small or large, simple or complex, software-intensive or not, precedented or unprecedented; c. Systems made up of hardware, software, firmware, personnel, facilities, data, materials, services, techniques, or processes (or combinations thereof); d. A new system or a legacy system, or portions thereof. NOTE: The specific tasks and implementation methods for applying the processes required by this standard can vary, for example, between commercial and government projects, or between customer-involved and internally developed projects. The fundamental processes, however, are the same in all cases. The requirements of this standard, or a designated subset, are intended to be applied by projects establishing policies and procedures for project implementation of the adopted process and process elements of this standard.
This standard defines a total system approach for the development of systems. The standard requires: establishing and implementing a structured, disciplined, and documented systems engineering effort incorporating the systems engineering process; multidisciplinary teamwork; and the simultaneous development of the products and processes needed to satisfy user needs. The systems engineering process is defined generically to facilitate broad application. This standard defines the requirements for technical reviews. The tasks in this standard provide a methodology for evaluating progress in achieving system objectives. This standard provides a comprehensive, structured, and disciplined approach for all life-cycle phases, including new system product and process developments, upgrades, modifications, and engineering efforts conducted to resolve problems in fielded systems.
The purpose of this Standard is to provide an integrated set of fundamental processes to aid a developer in the engineering or reengineering of a system. Use of this Standard is intended to help developers a) establish and evolve a complete and consistent set of requirements that will enable delivery of feasible and cost-effective system solutions; b) satisfy requirements within cost, schedule, and risk constraints; c) provide a system, or any portion of a system, that satisfies stakeholders over the life of the products that make up the system.
The purpose of this Standard is to provide an integrated set of fundamental processes to aid a developer in the engineering or reengineering of a system. Use of this Standard is intended to help developers a) establish and evolve a complete and consistent set of requirements that will enable delivery of feasible and cost-effective system solutions; b) satisfy requirements within cost, schedule, and risk constraints; c) provide a system, or any portion of a system, that satisfies stakeholders over the life of the products that make up the system.