Space Based Laser

Accomplishment Criteria


A statement of the definitive measure(s) or indicator(s) used to judge whether a Significant Accomplishment has been completed. Each Significant Accomplishment has one or more Accomplishment Criteria.

Activity or Task


A time consuming element, e.g., work in progress between interdependent events, represented in an activity box.  Activities are numbered and are contained within an activity box.  The left side represents the beginning of the activity, and the right side is the completion of the activity.

Actual Cost of Work Performedackage


The total expenditure for past work completed on a project (Earned Value analysis)

Adequate Price Competition


The existence of two or more independent contractors that have been determined to be qualified to perform the work and bid on a proposal per current Federal Acquisition Regulations (FAR).

Air Force


United States Department of the Air Force

Ancillary Mission


Any mission performed by the SBL other than killing a boosting ballistic missile.




Applicable Documents are those compliance and reference documents used on the SBLRD program. Compliance documents are contractually binding, while reference documents are for guidance only and are not contractually binding.

Authority to Proceed


The official contract start authorization date

Base Year


A point of reference representing a fixed price level and is usually defined as the fiscal year in which a program is initially funded. It is implicit that the purchasing power has remained the same over the time period

Ballistic Missile Defense


Defense against either a tactical or strategic ballistic missile during any phase of its flight.

Ballistic Missile Defense Organization



Budgeted Cost of Work Performedackage


The planned expenditure for work completed to date (Earned Value analysis)

Budgeted Cost of Work Scheduled


The planned expenditure for work planned in the future (Earned Value analysis)

Commercial Off-The-Shelf


Commercially available items available through catalogues or order forms. Items may require some assembly or installation before they can be used.

Computer Software Component


A software aggregate that is intended to be a logically or functionally distinct part of a CSCI. CSCs may be further decomposed into other CSCs and Computer Software Units (CSU). CSCs may also be thought of as Software Unit Collections (SC).

Computer Software Configuration Item


A software aggregate, comprised of Computer Software Components (CSCs) and Computer Software Units (CSUs), that is treated as a single entity in the configuration management process.


Software Unit


A software aggregate that is indivisible with respect to such functions as compilation and assembly or is an otherwise indivisible and cohesive part of a larger system. Also, separately testable software aggregate.

Concept of Operations


A definition of the functional sequencing of the operation of the total system. The functional sequencing addresses both peacetime and wartime operations, resupply and replacement.

Contract Data Requirements List


List of contract deliverable documents. Defines document delivery dates, content, applicable data item description (DID), and recipients of documents.

Contract Line Item Number


A program product, other than a CDRL, delivered to the Government.

Contract Statement of Work


The CSOW contains the tasking contracted under the currently funded increment. required to achieve the significant accomplishments over the total program span. The tasking level is consistent with the depth provided in the IMS. The tasks or activities are correlated to the CWBS, the significant accomplishments or accomplishment criteria, and identify the organizational element responsible for its execution.. Only that portion of the CSOW covered within the current funding period will be placed under contract.

Contract Work Breakdown Structure


The CWBS defines the contractor’s product and functional structure required to execute the program. The description includes a CWBS Dictionary which unambiguously defines the extent of each element in the CWBS structure. The CWBS identifies the organizational entity responsible for each element listed in the CWBS. The first 3 levels of the CWBS will be placed under contract at the start of the program. Details below level 3, consistent with the CSOW and IMS, are developed as the program proceeds.

Cost as An Independent Variable


This is the process for using cost as a parameter in theany program decision process, including design, performance, schedule, and risk mitigation.

Cost Driver


A CWBS element that, compared to other CWBS elements, is proportionately more costly due to the magnitude of cost, cost uncertainty, and/or associated schedule, technical, and cost risk assessment associated with it

Cost Risk


Cost impacts due to identified technical, schedule, estimating, and programmatic risks.

Cost Estimating Relationship


A mathematical equation that relates one dependent variable, cost, to one or more independent variables (i.e., performance, design parameters, etc.). Includes tables or graphs relating cost to performance, design and, or resource parameters.

Cost Performance Report


A recurring format to describe updated cost and schedule information to include the following formats: WBS to level three, functional, baseline, manpower, and analysis

Cost Plus Award Fee


Government contract approach for the SBLRD

Cost Realism Assessment


An evaluation, by the Government, of the contractors basis for estimating costs

Critical Path


The one or more sequence of activities and/or events from start to finish that require the longest amount of time to complete. The critical path is simply the longest path through the network in terms of the amount of time the entire project will take. It is that sequence of tasks, the path of tasks for which a single unit of time delay (a day, a week, a month) will cause an equivalent delay in the final completion of the project.

Critical Path



The Critical Path Method is both the scheduling technique and the methodology, which makes analytical use of information regarding the critical path and other sequential paths through the network. Detailed knowledge of the critical path is needed to establish the project schedule, to help in the intelligent allocation of resources, and to assist in the successful management of the project.

Cumulative Probability Distribution



A graphical method of portraying the cost estimate and its related uncertainty in a form of an "S" curve. This approach is a quantitative method of expressing confidence levels in estimates. Also known as Cumulative Density Function.

Data Item Description


Defines format, content, and requirements for CDRLs

Demonstration Objectives Document


The document containing the Air Force Space Commands test and data collection objectives for the SBLRD. This reference document is available in the SBL library.



The length of time estimated to accomplish an activity (disregarding the "calendar impact).  Rationale should also be provided supporting the derivation of the duration’s including ground rules and assumptions (e.g., historical data, experience on similar efforts, vendor schedules, number of work days per week, number of shifts, company holidays, etc.)  In addition, the offeror shall provide a supporting narrative for the network diagram that explains the basis for the estimated duration’s of those activities on the critical path(s) and for activities designated as high risk.  Any unusual aspects of their proposed approach to the program shall also be described.

Development, Test and Evaluation



Earned Value Management System


A management approach which controls budgets, schedule, and resources by assigning planned schedule, and cost to each task, measuring task accomplishment by analyzing actual costs incurred against work performed.

Engineering, Manufacturing and Development


The phase of SBL development that manufactures, develops and tests an operational SBL prototype.



A significant programmatic decision or achievement point for continued program execution that is placed on contract. Any product development or process completion may constitute an Event. Events are intended to provide a measure that the program is moving forward in a planned and orderly manner toward attaining its objectives.

Final Orbit


This is the planned orbit of the space vehicle from which the SBLRD lethal demonstration test will be conducted.

Fiscal Year


The Government’s finanical management period, 1 Oct to 30 Sep. fiscal year Oct. 1 through

Government Furnished Equipment


Government owned equipment required for use on the program.

Government Furnished Information


Government documents, reports, and manuals required for use on the program.

Government Furnished Property


Government property or facilities required for use on the program.

Hardware Configuration Item


A hardware aggregate that is treated as a single entity in the configuration management process.

Independent Review Team


Offeror implemented organization providing an independent assessment of the programs progress to the Offerors management team. The PMO will also have access to the IRT’s activities and assessments.

Integrated Master Plan


The IMP is an event-based plan containing the significant accomplishments that must be achieved to constitute completion of the event, and the criteria by which successful completion of those accomplishments can be judged. The IMP is placed under contract at award.

Integrated Master Plan Narrative


The IMP narrative describes the major functional and management processes used to management the program and develop the SBLRD.

Integrated Master Schedule


The IMS presents the schedule for the Events, and the planned activities to execute each significant accomplishment. The IMS may also contain milestones, in addition to events, marking the completion of a series of activities leading to the achievement of an accomplishment. Milestones can include major reviews, key tests, or risk reduction activities. Milestones are deemed less important than the Events.

Integrated Program Execution Plan


The IPEP is the integrated collection and presentation of selected contractor program management elements. The IPEP includes the Integrated Master Plan (IMP) and associated narrative, the Integrated Master Schedule (IMS), the Contract Work Breakdown Structure (CWBS) and associated dictionary, and Contract Statement Of Work (CSOW). Integrated presentation means all the elements must be coordinated and consistent, both internally and across each other. The elements of the IPEP span the entire SBLRD program duration However the depth of coverage within any period should balance the Offeror’s information needs required to manage the program, with those required to provide the government sufficient detail to understand and evaluate the Offeror’s total program. The objective is to understand how allocated funds will be spent, and minimizes the replanning costs. The nearer term part of the plan is significantly more detailed than the far term portion of the plan.

Integrated Space Vehicle


Includes the space vehicle, protective shroud through the launch phase, and payload to launch vehicle interface

Integration and Test

I & T


Key Performance Parameter


Key parameter used to assess the progress in meeting the System performance requirements. KPP’s may not be directly measurable.

Level of Effort


Constant, general or supportive activities with no definite or deliverable product. Work generally spread over the scheduled period of performance.



A milestone is the culmination of a series of activities on the path leading to a significant accomplishment. Milestones are not placed in the IMP.

Mission Plan


Preliminary description of the Offeror’s approach for conducting the lethal demonstration. It is initially intended to provide the Government an understanding of the how the test is to be conducted, the resources required and the criteria for success.

Most Probable Cost


Governments estimate of the contractors proposed Government costs. This estimate will include cost uncertainty reported at the 50 % confidence level.

Non Developmental Item


A hardware or software item that has been developed and used on other activities, but are not commercially available.

Notional CONOPS


A preliminary description of the operational SBL CONOPS. It is expected that the CONOPS will change asnd the SBLRD program progresses.

Office of the Secretary of Defense





Same as space vehicle

Performance Confidence Assessment


An assessment of the contractor’s ability to successfully execute the requested program based upon current and past performance.

Performance Confidence Assessment Guide


The Government document contains the guidance to be used by the PCAT in evaluating the Offeror’s past performance

Performance Confidence Assessment Team


The Government organization responsible for evaluating the contractor’s past performance to provide an assessment of their ability to perform the SBLRD program.

Program gramContracting Officer


The point of contact in the program office for all contract-related activity. Only Government representative, in the PMO, authorized to approve changes in the contract.

Program gram Management Office


Government organization responsible for managing the SBL program

Request for Proposal


The Governments formal request for a contractor proposed offering

Research and Development

R & D


Risk Driven Cost Growth



Significant Accomplishment


Significant accomplishments are those activities related to a single event that must be successfully completed in order for the event to occur., and The SA may constitute the culmination of a series of lower level activities required to achieve that accomplishment. Significant accomplishments must be measurable and demonstrable. Each event will have one or more significant accomplishments.

Source Lines of Code


Number of identifiable data source statements in a given programming language.

Source Selection Authority


The Government official responsible for approval of theselected contractor recommended Offeror.

Source Selection Advisory Council


A council of senior government officials charged with reviewing the findings of the SSEB, and performing a comparative analysis of the offers for the SSA.

Source Selection Evaluation Board


The Government team responsible for evaluating the contractor’s Offeror’s proposals.

Space Based Laser


An on-orbit laser weapon platform capable of acquiring, tracking, depositing lethal energy, and, and performing kill assessment of a boosting ballistic missile.

Space Based Laser Readiness Demonstrator


The program to resolve technologies critical to the SBL’s operation, by collecting and analyzing design and performance test data, and culminating in the deposition of destructive energy on a boosting ballistic missile.

Space Vehicle


The space vehicle includes all elements in the orbiting vehicle. Same as payload

Statement of Objectives


The government document defining the objectives of the SBL and the SBLRD program.

Technical Performance Measure


A quantitative measure used to determine whether the system is meeting the SOOits requirements.

Technical Requirements Document


A contractor document containing the requirements for the system, derived from the SOO, and allocated to all subsystems, elements and components

Termination Liability


The cost/expenditures incurred, but not yet reimbursed, plus only those portions of firm commitments (e.g. subcontracts) which would be required to be paid in the event of termination at the end of the funding period.

Test and Evaluation

T & E


Then Year


A constant or base year dollar that has been either inflated or deflated using the appropriate weighted inflation indices to show the amount of money that will be needed when the expenditures for goods and services are made. Usually applies to the cost of an item in a future year, accounting for inflation.

To Be Derived


Values or items to be defined by the TSA through analyses.

To Be Resolved


Values or items to be resolved by the TSA and then agreed to between the government and the TSA.

Total Demonstration Cost


The total cost of the demonstration program from contract award to completion of the last activity on the contract.

Total Float


The number of time units on a schedule that an activity or sequence of activities can be delayed without effecting the project finish or Event date.

Total System Authority


TSA means that the Offeror is solely responsible for achieving each event and milestone in the IPEP. This includes all activities, services, products or facilities the Offeror deems integral to meeting their significant accomplishments or satisfying the accomplishment criteria, whether that activity is conducted by the Offeror, the Offeror’s subcontractors, associate contractors or government entity.