Term
|
Definition
| Early and high-level life-cycle activity with the potential to establish, commit, and otherwise predetermine the function, form, cost, and development schedule of the desired system. |
|
|
Term
| Questions for system level requirements |
|
Definition
What is required of the system in 'functional' terms
What functions must the system perform?
What are the 'primary' functions
Whare are the 'secondary' functions
What must be accomplished to alleviate the stated defficiency?
When must this be accomplished?
Where is it to be accomplished?
How many times and at what frequency must it be accomplished? |
|
|
Term
| What is the objective of a program management plan? |
|
Definition
| Prepare a maangement related plan providing the necessary guidance for all subsequent managerial and technical activities. |
|
|
Term
| What is found in a Systems Engineering Management Plan (AKA System Engineering Plan) |
|
Definition
| Not really sure, but must be developed concurrently with the System Specification (Type A) |
|
|
Term
| System Specification (Type A) |
|
Definition
Technical requirements
Development of a system level architecture, to include development of system operational requirements, determiniation of a functional architecture, feasability assessment, maintenance and support concept.
Must talk to the SEMP |
|
|
Term
| What do you do after you've identified the need for a new system? |
|
Definition
1) ID various system level design approaches or alternatives that could be purused in response
2) Evaluate the feasible approaches to find the most desirable in terms of performance
3) Recommend a preferred course of action |
|
|
Term
| What are some questions that might be asked when defining operational requirements? |
|
Definition
1) What are the anticipated types and quantities of equipment, software, personnel, facilities, info, required and where are they to be located?
2) How is the system to be utlizied, and for how long?
3) What is the anticipated environment at each operational site (user location)?
4) What are the expected interoperability requirements?
5) How is the system to be supported, by whom, how long? |
|
|
Term
System Operational Requirements -
Mission Definition |
|
Definition
ID of the prime and secondary missions of the system. Can be defined through one or a set of scenarios or operational profiles.
Dynamics of the system operating conditions be identified to the extent possible. |
|
|
Term
System Operational Requirements -
Performance and physical parameters |
|
Definition
Definition of the operating characteristics or functions
(size, weight, speed, range, accuracy, flow rate, capacity, transmit, receive, throughput)
What are the critical system input parameters?
How are they related to the mission scenarios? |
|
|
Term
System Operational Requirements-
Operational Deployment or Distribution |
|
Definition
ID the quantity of equipment, software, personnel, facitilities, etc, and expected geographical location to include transport and mobility requirements.
When does the system become fully operational? |
|
|
Term
System Operational Requirements-
Operational life cycle |
|
Definition
Anticipated time that the system will be in operational use.
What is the total inventory profile throughout the system life cycle
Who will be operating the system and for what period of time?
|
|
|
Term
System Operational Requirements -
Utilization Requirements |
|
Definition
Anticipated usage of the system and its elements
How is the system used by the customer, operator, or operating authority?
|
|
|
Term
System Operational Requirements -
Effectiveness Factors |
|
Definition
System requirements as figures of merit such as cost/system effectiveness, operational availability, readiness rate, dependability, logistic support effectiveness, mean time between maintenance
How are these factors related to the mission scenario? |
|
|
Term
System Operational Requirements -
Environmental Factors |
|
Definition
| Definition of the environment in which the system is expected to operate. This should include a range of values and should cover all transportation handling and storage modes |
|
|
Term
| Interoporability requirements |
|
Definition
| May be embedded - may have horizontal and vertical impacts. |
|
|
Term
Maintenance and support concept -
Levels of Maintenance |
|
Definition
| Organizational, intermediate, manufacturer/depot level |
|
|
Term
Maintenance and Support Concept -
Repair Policies |
|
Definition
| Nonrepairable, partially repairable, fully repairable |
|
|
Term
Maintenance and support concept -
Organizational Responsibilities |
|
Definition
|
|
Term
Maintenance and Support Concept -
Maintenance Support elements |
|
Definition
| Criteria must be established relating to the various elements of maintenance support. Supply support, test and support equipment, personnel and training,, etc. |
|
|
Term
| What does the maintenance concept do? |
|
Definition
| Provides the foundation that leads to the design and development of the maintenance and support infrastructure and desfines the specific design-to requirements for the various elements of support |
|
|
Term
| What are technical performance measures? |
|
Definition
| quantitative values that describe the system performance |
|
|
Term
| What forms the basis of TPMS? |
|
Definition
| Design dependent parameters |
|
|
Term
| What is the goal of the TPMs? |
|
Definition
| Produce a system that will utlimately meet customer requirements effectively and efficiently |
|
|
Term
| What helps prioritize the TPMs? What is its purpose? |
|
Definition
| Quality Function deployment - establish the necessary requirements and to translate those requirements into technical solutions. Each customer attribute is then satisfied by a technical solution. (The crazy house looking thing). Requirements should be stated in functional terms. |
|
|
Term
| What purpose does a functional description serve? |
|
Definition
| A basis for the identification of the resources necessary for the system to accomplish its mission. |
|
|
Term
| What is the definition of a function |
|
Definition
A specific or discrete action that is necessary to achieve a given objective. Operation that the system must perform, or a maintenance action that is necessary to restore a faulty system to operational use.
WHAT needs to be accomplished. |
|
|
Term
| What is a functional analysis |
|
Definition
| An iterative process of translating system requirements into detailed design criteria and the subsequent identification of the resources required for the system operation and support. Develop a top-level system architecture, which deals with both the requirements and the structure. |
|
|
Term
| What does a system architecture do? |
|
Definition
| Deals with both requirements and structure |
|
|
Term
| What does a functional architecture do? |
|
Definition
| establish a functional baseline for all subsequent designs and support activities and to provide a foundation from which all physical resource requirements are identified and justified (the physical architecture) |
|
|
Term
| What does the functional approach help to ensure? |
|
Definition
1) All facets of system design and development, production, operation, support, and phase-out are considered
2) All elements of the system are fully recognized and defined
3) A means is provided for relating system packaging concepts and support requirements to specific system functions
4) The proper sequences of activity and design relationships are eablished along with critical design interfaces. |
|
|
Term
| What happens in functional allocation when you partiton? |
|
Definition
| ID and group closely related functions into packages employing a common resource and to accomplish multiple functions to the extent possible. |
|
|
Term
| What does the basic system architecture do? |
|
Definition
| Definition of system operational requirements, maintenance and support concept, ID and priority of TPMs |
|
|
Term
| What does the functional architeture do? |
|
Definition
| Evolves from the functional analysis and is a description of the system in functional terms. |
|
|
