System Life Cycle Flashcards
is a view of a system or proposed system that addresses all phases of its existence to include system conception, design and development, production and/or
construction, distribution, operation, maintenance and support, retirement, phase-out and disposal
System Life Cycle in Systems Engineering
It is the stage where an identified need is examined, requirements for potential solutions are defined, potential solutions are evaluated and a system specification is developed.
Conceptual Design
It represents the technical requirements that will provide overall guidance for system design.
System Specification
Key steps within the conceptual design stage include:
•Need identification
•Feasibility analysis
•System requirements analysis
•System specification
•Conceptual design review
It is the process of discovering a customer’s requirements, constraints, pain points, and motivations.
Need Identification
It is used to determine the viability of an idea, such as ensuring a project is legally and technically feasible as well as economically justifiable.
Feasibility Analysis
It is a statement that identifies the functionality that is needed by a system in order to satisfy the customer’s requirements
System Requirements Analysis
are a broad and also narrow subject that could be
implemented to many items.
System Requirements
It means those technical and functional
requirements relating to the design and performance of the BAS
(building automation system) System or a particular Phase of the BAS
System, as set forth in the Contract.
System Specification
It may from time to time be amended by Change Orders.
System Specifications
is meant to provide an informal critique
and evaluation of a project’s basic design approach.
Conceptual Design Review
During this stage of the system lifecycle, subsystems that perform the desired system functions are designed and
specified in compliance with the system specification.
Preliminary System Design
Interfaces between subsystems are defined, as well as overall test and evaluation requirements.
Preliminary System Design
At the completion of this stage, a development specification is produced
that is sufficient to perform detailed design and development.
Preliminary System Design
At the completion of Preliminary System Design, a _____ is produced
that is sufficient to perform detailed design and development.
Development Specification
Key steps within the preliminary design stage include:
•Functional analysis
•Requirements allocation
•Detailed trade-off studies
•Synthesis of system options
•Preliminary design of engineering models
•Development specification
•Preliminary design review
This stage includes the development of detailed designs that brings initial design
work into a completed form of specifications.
Detail Design and Development
Key steps within the detail design and development stage include:
•Detailed design
•Detailed synthesis
•Development of engineering and prototype models
•Revision of development specification
•Product, process and material specification
•Critical design review
During this stage, the product is built or assembled in accordance with the
requirements specified in the product, process and material specifications and is deployed and tested within the
operational target environment.
Production and Construction
These are conducted in order to correct deficiencies and adapt the system for continued improvement
System assessments
Key steps within the product construction stage include:
•Production and/or construction of system components
•Acceptance testing
•System distribution and operation
•Operational testing and evaluation
•System assessment
Once fully deployed, the system is used for its intended operational role and maintained within its operational
environment.
Utilization and Support
Key steps within the utilization and support stage include:
•System operation in the user environment
•Change management
•System modifications for improvement
•System assessment
Effectiveness and efficiency of the system must be continuously evaluated to determine when the product has met
its maximum effective lifecycle.
Phase-out and Disposal
It is a basic personal selling technique that is used to understand how your products will be of value to the customer.
Need Identification
It tells us whether a project is worth the investment—in some cases, a project may not be doable.
Feasibility Analysis
Because this document determines all future development, the stage cannot be completed until a conceptual design review has determined that the system specification properly addresses the motivating need.
System Specification
The system specification may from time to time be amended by ________.
Change orders
System Specification determines all future development, the stage cant be completed until a ___________ has determined that the system specification properly addresses the motivating need.
Conceptual design review
In preliminary system design, __________ between subsystems are defined, as well as overall _________________.
Interfaces
Test and evaluation requirements
At the completion of preliminary system design, a ___________ is produced that is sufficient to perform detailed design and development.
Development specification
This work includes the specification of interfaces between the system and its intended environment and a comprehensive evaluation of the systems logistical, maintenance and support requirements.
Detail Design and Development
