any horizontal line in a plot, graph, or diagram, or on a visual display in an electronic device, used as a reference point to which other values are referred.

In the U.S. Public land surveying system, a surveyed east-west (i.e. latitudinal) reference line, often hundreds of miles in length, from which tiers of townships are are surveyed to the north and south. There are approximately two dozen baselines in the lower 48 states. See also meridian.

The writing line on which the main body of the letter sits.

The imaginary horizontal line on which text rests.

An imaginary horizontal line that coincides with the bottom of each character in a font, excluding descenders (tails on letters such as p).

The imaginary horizontal line along which characters appear to sit (or align).

An imaginary line which is used to position a character. Characters may rest on the baseline or extend above or below it. Characters are normally positioned so that their baselines are aligned. Such characters are said to be base aligned.

The imaginary line upon which the letters in a font appear to rest.

The imaginary horizontal base on which all characters in a line of type align.

In composition, the line on which the bottoms of letters rest, exclusive of descenders that fall below the baseline.

An imaginary line whereupon characters in a type line sits. Some characters have descenders that extend below the baseline, for example ‘g' and ‘p'. See also Descender

The notional line at the foot of the X-height on which different type designs align.

The baseline is the horizontal line on which the (latin, greek, cyrillic) letters sit. The baseline will probably be in a different place for different scripts. In Indic scripts most letters descend below the baseline. In CJK scripts there is also a vertical baseline usually in the middle of the character. See also X-height, Cap-height, Ascender, Descender, Overshoot

The imaginary line upon which the bases of some letters sit.

Horizontal line upon which all characters in a given line stand.

The imaginary line that forms the bottom of letters. Some letters have strokes called descenders which fall below the baseline.

(1) In reference to the PLS, this is an established east-west line running on a true parallel of latitude through an initial point. (2) In general use, a baseline is any established reference line of known direction and length. Often such a baseline is established in a location close to an area of interest by carefully surveying on the ground.

It is the line formed either horizontal or vertical on the face of cathode-ray tube by the sweep of the scanning dot.

Imaginary horizontal line with which the base of each character, excluding descenders, is aligned. The bottom of the x-height. See "descender," "x-height."

The reference line in a measurement by triangulation. (I.e. The horizontal trace across the A-scan display. It represents time and is generally related to material distance or thickness.)

The line defining each end of the court; also known as the "end line".

The imaginary line on which non descending letter text sits.

The (imaginary) line on which type characters rest; characters with downward strokes, such as g or p, protrude below this line.

The imaginary line on which the letters in a line of type appear to rest.

The line at either end of the court; also known as the end line.

The lines at either end of the tennis court, where you serve from.

Used in the government survey system of land description. A baseline is a longitudinal reference line that runs in an east-west direction. Oregon has one such baseline which intersects the Willamette Meridian near Portland and forms the basic reference point for land survey purposes in Oregon.

in a font, the imaginary line upon which the characters rest.

An imaginary line determined by the flat base of a lowercase letter such as \"m\". The baseline establishes the base of a block of text. All upper and lowercase letters rest on this imaginary line.

An imaginary line that type rests on.

the back line bounding each end of a tennis or handball court; when serving the server must not step over this line

a horizontal line measured with special accuracy to provide a base for survey triangulation

a line drawn between the land and internal waters of a State and the sea and from which the extent of any maritime zones claimed by a coastal State are measured

a line, marked with engineer's tape (we use blue and white), to let us know when to stop walking

a metal cable drawn tight using a hand winch

a reference line that lies across your course

The end boundary line on the court.

A conceptual line with respect to which successive characters are aligned.

An imaginary line on which most of the lower case letters rest.

Also called the end line. This line extends across both ends of the court behind the baskets.

A line at the end of the tennis court running parallel to the net marking out the boundary of the playing area.

The line representing the bottom of most letters, such as 'A' and 'a'.

an imaginary line upon which rests the body of a line of type. Descenders, such as lower-case p or g, drop below the baseline.

The invisible line on which a line of type rests.

The distance from the bottom of a character or the imaginary line that the characters "rest on", to the top of the plate. The height of the character can never exceed the baseline measurement.

In typography, it is the invisible line that the bottom of type sits on in a line of type.

The horizontal line on which characters in the font are positioned.

An invisible horizontal line on which the feet of all characters on a line of type are set, used for proper alignment of type.

measured distance between two positions used as the observing stations for a triangulation survey; angles measured from this line serve to locate the other points in the survey.

Typography term -- the imaginary horizontal line upon which typeset characters rest.

The invisible horizontal line on which all characters or letters of a line of type align.

The imaginary line upon which the bottoms of letters, numbers, and other typographic characters are aligned (not including letters that descend below the line, such as g, p or j.)

The invisible line that a character of type rests upon.

an imaginary line on which the x-height of the type is aligned

the chalk line at the farthest ends of the court indicating the boundary of the area of play.

specific survey line on which all latitude measurements are based

Back boundary line at each end of the court, parallel to the net.

The line that is the farthest away from the net and parallel to the net. There is one on each side of the net

The imaginary horizontal line upon which most of the characters in a typeface sit.

the imaginary line upon which the base of each capital letter rests.

The baseline is an imaginary alignment line upon which a glyph without a descender rests. The baseline is an intrinsic property of the glyph (namely a horizontal line). Often baselines are aligned (joined) during typesetting.

The imaginary line that runs along a line of type touching the bottom of each letter.

The invisible line on which type characters sit

The line on which the foundation of capital letters sit.

In prescribed burning, the initial line of fire, usually set as a backing fire along a barrier or control line, which serves to contain subsequent burning operations.

In typesetting, the invisible line on which letters and numbers set.

Reference line established for measurement taking. Horizontal line measured with special accuracy for survey with triangulation.

The imaginary line on which the majority of the characters in a typeface "rest."

a fore and aft reference line taken at the upper surface of the flat keel plate alonf the centreline; sometimes written as base line

In type, a line that connects the bottoms of capital letters. Portions of type falling below this line are descenders.

The line at each end of the court, under each basket. Also: endline.

The direct line between each base, along which the baserunner must generally run.

The end boundary line of a tennis court.

The line at the end of the court that is parallel to the net

show HIDE An imaginary line on which letters align.

An imaginary line upon which type may be considered to rest.

The imaginary line upon which text rests. Descenders extend below the baseline. Also known as the "reading line." The line along which the bases of all capital letters (and most lowercase letters) are positioned.

An imaginary horizontal line on which type characters rest and below which type descenders descend.

the line on which the bases of capital letters sit.

The line upon which the letters of a font rest. Click here for an example.

The baseline for measuring the breadth of the territorial sea is the low-water line along the coast as marked on large scale charts officially recognised by Australia, except where the coastline is indented or a fringe of islands is in its immediate vicinity, in which case the method of straight baselines joining appropriate points is employed (refer to the Seas and Submerged Lands Act 1973 for Australia's baseline).

the east-west survey line in public domain states.

The line on which letterforms rest. (Round letters like "e" and "o" normally dent it, pointed letters like "v" and "w" normally pierce it, and letters with foot serifs like "h" and "l" usually rest precisely upon it.)

interface: The imaginary line upon which characters in a line of text rest.

Imaginary rule under each line of type touching bottoms of all characters with the exception of those having descenders.

The baseline is the line drawn by the data system when the only signal from the detector is from the mobile phase.

Any line drawn on an absorbtion spectrum to establish a reference point representing a function of the radiant power incident on a sample on a given wavelength.

line, which demarcates the legal length of the court.

The line between home plate and first base, or home plate and third base, respectively, and extends out to the outfield.  Usually it is marked with white paint.

imaginary line upon which all characters sit

in typography, the imaginary horizontal line upon which the main body of the letters sits. Rounded letters actually dip slightly below the baseline to give optical balance.

an imaginary line that most characters in a typeface rest upon

see end line.

The end line running from sideline to sideline.

The primary layout line for a bridge.

The baseline of a character is the notional line that splits the descent of a character from its ascent (see Character cell metrics (ascent, descent, height and baseline)). See also: character cell ascent  character cell descent

A series of points established for the expressed purpose of locating other features or lines.

An invisible line on which the main body of letters sit.

Part of the Rectangular Survey or Government Rectangular Survey method of land description.

the two lines that mark the lengthwise boundaries of the court.

The lines on either end of the court representing the outer limits of the length of the court.

A line at the end of the court, parallel to the net, that marks the lengthwise boundary of the playing area.

The baseline is the line drawn by the recording device representing the signal from the detector when only mobile phase is passing through. It also represents the point from which calculations are often made on peaks to determine quantitative data.

the vertical point of origin for all the glyphs rendered on a single line. Roman scripts have a baseline on which the glyphs appear to “sit,” with occasional descenders below. Many Indic scripts have a “hanging” baseline, in which the bulk of the letters are placed below the baseline, with occasional ascenders above the line. Some scripts, such as Chinese, use a centered baseline, where the glyphs are all positioned with their centers on the baseline.

A fore-and-aft reference line. On large vessels it is at the upper surface of the flat plate keel at the centerline. Vertical dimensions are measured from a horizontal plane through the baseline, often called the molded baseline.

Imaginary east-west lines which intersect meridians to form a starting point for the measurement of land.

The line at the backcourt that is parallel to the net. It's the line from which the serve is hit.

The imaginary horizontal line upon which typeset characters appear to rest.

East-West running imaginary lines that intersect North-South running imaginary Baselines. They are used by surveyors in the measurement of land.

In a font, the imaginary line on which the bottom of each character is aligned.

In the United States Public Land Survey System, a baseline is the principal east-west line that divides survey townships between north and south. The baseline meets its corresponding meridian at the point of origin, or initial point, for the land survey. For example, the baseline for Nebraska and Kansas is shared as the border for both states, at the 40th parallel.

In typography and penmanship, the baseline is the line upon which most letters "sit" and under which descenders extend.

A baseline is the line from which the seaward limits of a State's territorial sea and certain other maritime zones of jurisdiction are measured. Normally, a sea baseline follows the low-water line (lowest astronomical tide) of a coastal State. When the coastline is deeply indented, has fringing islands or is highly unstable, straight baselines may be used.

The baseline represents a benchmark whereby proposed changes in revenues or spending can be compared. For example, the Congressional Budget Office projects several years into the future what revenues and spending will be assuming there are no changes in policy. When a policy is proposed, the CBO then projects how it will affect revenues and/or spending and comparisons can be made.

The state of a phenomenon before the independent variable is manipulated, providing a standard against which the effects of the variable can be measured.

A measurement of some property, such as HIV viral load or CD4 cell count, that is taken before some change in therapy - such as beginning anti-HIV medications or changing to a different drug combination.

A benchmark for measuring the effects of proposed changes in federal spending, revenue and deficits on the budget based on the continuance of current policies will for the upcoming year.

In biology, a known base state from which changes are measured. In electronics, a voltage state (usually zero volts) from which a pulse excursion varies.

This is a measurement of the starting conditions, for example, the number of people unemployed, before a programme is undertaken. A programme can then be measured to see whether it's achieving its objectives by comparing the baseline figures with more up to date ones.

Information collected before, or at the start of a project, policy or programme that provides a basis for planning and assessing subsequent progress or impact. Source: DFID Poverty:Bridging the Gap-Guidance Notes

a captured set of revisions that have some special property

a documentation of the organization's or agency's policies, practices, methods, measures, costs and their interrelationships at a particular location at a particular point in time

a measurement of the existing behavior and noting when and how often that behavior occurs before treatment

a measurement of the existing behaviour and noting when and how often that behaviour occurs before treatment

a measurement that serves as a basis to which all following measurements are compared

a measure of network capacity and performance that is used to compare different configurations

a measure of the server's performance in various areas

an approved snapshot of the system at appropriate points in the development life cycle

a national, annual projection of the supply-demand-price situation for milk and dairy products

a reference position for measuring progress in process improvement

a scientific measurement of how things were

a set of key, original project estimates

a snapshot of either your planned work to which you compare your actual work, or it's your actual work which you compare to your plan

a snapshot of the current state of a product or subsystem at a point in time

a snapshot of the main elements of the project as it is before we start

a snapshot of the Stratego/XT source repository that only requires a C compiler to build itself

a specific quantitative or qualitative measure that existed or was established before the investment began and thus does not change over time

A snapshot of the planned start and planned finish of every task in the project. The Baseline is used to help measure the progress of the project and to make more visible the areas that need attention. Usually created in Microsoft Project.

The starting point from which your organization can measure change.

A measurement of the starting conditions, for example numbers unemployed, before a programme is undertaken. The benefits of a programme can be assessed over time by comparing the baseline with more up to date figures.

A copy of the project schedule for a particular time (usually before the project is started) that can be used for comparison with the current schedule.

A set of critical observations of data used for comparison or a control.

Description of the current local conditions and recent trends (against which changes that are planned to be delivered by the scheme will be measured or indicated).

The concentration of a nuclide or radiation level that is considered "normal" under routine conditions. Baseline is generally obtained from evaluation (typically an average) of numerous background measurements. Baseline results are used for comparisons to individual sample results to determine if abnormalities may exist.

The measured distance between two receivers or two antennae.

A snapshot of the state of a project product and its constituent sub-products at a point in time. Plans are 'baselined' when they have been formally agreed and accepted and changes to baselines should be measured and managed accordingly. Baselined products such as software systems should be permanently recorded so that it can be recalled at any future time.

The measured distance between two receiver antennas.

information to be used for comparison; a standard for comparison

An observation or value that represents the background level of a measurable quantity.

Measurements of behavior, repeated over time, to determine how often, how long, and/or when a behavior is occurring.

A baseline is a fixed schedule which represents the standard that is used to measure the performance of the project. Every time a change to the scope of the project is approved, the schedule should be adjusted and a new revision of the baseline should be used instead. Many project management software packages have a feature which allows the project manager to maintain a baseline schedule and track revisions to it.

Defined quantity or quality used as starting point for subsequent efforts and progress measurement that can be a technical cost or schedule baseline. (See Performance Measurement Baseline (PMB) and Acquisition Program Baseline (APB)).

(See Performance Measurement Baseline).

A measurement, calculation, or location used as a basis for comparison in science.

Reference emission level. The term is used with different meanings in different contexts. It can denote: the historical emission level of an entity in a reference year, the projected future emission level of an entity if no extra mitigation measures are taken (business-as-usual scenario), the hypothetical emission level against which the climate benefits of JI and CDM projects are calculated

The average rate or level of some variable at a point in time. It is generally understood that the baseline is the "before" measure that will be used for future comparison. Thus, the baseline is the measure prior to an intervention or strategy, and can be used as the starting point for tracking a trend.

A measurement that is taken at the start of an initiative, usually in statistical terms, e.g. number of people in a local area who are unemployed. The initiative can then be measured as to how effective it has been at impacting the baseline measure.

A person's health status before he or she begins treatment in a clinical trial. Baseline measurements are used as a reference point to determine a participant's response to the experimental treatment. Safety and efficacy of a drug are often evaluated by monitoring changes from baseline values.

1. Information gathered at the beginning of a study from which variations found in the study are measured. 2. A known value or quantity with which an unknown is compared when measured or assessed. 3. The initial time point in a clinical trial, just before a participant starts to receive the experimental treatment which is being tested. At this reference point, measurable values such as CD4 count are recorded. Safety and efficacy of a drug are often determined by monitoring changes from the baseline values.

A standard against which emissions from a climate change mitigation project can be compared to determine emission reductions.

reference levels against which the project is monitored and controlled.

A reference scenario against which a change in greenhouse gas emissions or removals is measured.

Information gathered at the beginning of a clinical trial, just before a participant starts to receive the treatment(s) that are part of the study. At this reference point, measurable values such as CD4 count are recorded. The safety and efficacy of a drug are often determined by monitoring changes from the baseline values.

normal background level used for comparisons

The baseline is the estimation or measurement of the "normal" rate of emission before the emission reduction action. Legal: The average annual amount or rate of a greenhouse gas or air contaminant emitted before an emissions reduction or avoidance action is taken, or the amount of carbon stored before a carbon sequestration project is undertaken.

an initial or known value (e.g., CD4 cell count, HIV viral load) to which later measurements can be compared.

A baseline is the benchmark against which proposed fiscal policy changes are measured. There is no universally accepted approach for measuring proposed budget changes. One approach is to use the actual spending and revenue levels from the preceding fiscal year as the benchmark. Another approach is to construct a current services baseline that attempts to capture the cost of continuing current policies, taking into account the impact of inflation, changes in the number of program beneficiaries, and other factors.

The point of reference that is used as a comparison point for project performance reporting.

A snapshot. A position or situation that is recorded with the specific intention of using it to compare against some future position, usually to demonstrate that change has been achieved. Although the position may be updated later, the baseline remains unchanged and available as a reminder of the original state and as a comparison against the current position. In planning, a baseline captures when the activities within the Plan were originally intended to occur. When a Plan is baselined, the currently planned start and finish dates of all Tasks and Activities within the plan are separately recorded. If the plan is subsequently updated with any changes to these dates, any slippage can be measured against the originally planned (baseline) dates. A Plan is normally baselined once it has been signed off by the Project Board. Products that have passed their quality checks and are approved are baselined products. Anything 'baselined' should be under version control in configuration management and 'frozen', i.e. no changes to that version are allowed.

An established, fixed version of the project plan against which actual implementation of the project is measured.

the time point in a study just before initiation of intervention (vaccination) when starting measurements are taken. Measurements taken at later time points may be compared with those taken at baseline to study variations.

Data gathered to provide a comparison for assessing program changes or impact.

A snapshot or a position which is recorded. Although the position may be updated later, the baseline remains unchanged and available as a reference of the original state and as a comparison against the current position (PRINCE2).

A snapshot of a project, specification, schedule, or other entity at a set point in time. A baseline consists of the original approved plan, plus or minus approved scope changes; it is used as a point of reference to measure progress. It is usually used with a modifier (a cost baseline or schedule baseline, for example). It may document an IT architecture and underlying dependencies at a given point in time, or may be used to document the current status of a development or other project. For availability management in an operations setting, the term also is used to identify an agreed set of availability definitions and targets for an IT service. Such definitions and targets normally would have been proved through modeling and, once defined, would be used as key availability design and reporting criteria.

any test or measurement taken before treatment or study entry

Information related to the as-is (current) model that allows comparison with future improvements and benchmarks.

The distance between two observing locations used for the purposes of triangulation measurements. The larger the baseline, the better the resolution attainable.

An emission baseline is a hypothetical emission reference representing the estimated level of greenhouse gas emissions that would have been emitted in the absence of the process improvement tasks aimed at minimizing emissions.

A source of information that serves as a base for future measurement; a course of progress.

A measurement or known state by which something is measured or compared, which is necessary for managing change. It can be thought of as a snapshot at a set point in time. In MSF, a baseline consists of the original approved plan, plus or minus approved scope changes. It is usually used with a modifier (a cost baseline or schedule baseline, for example). For availability management in an operations setting, the term also is used to identify an agreed set of availability definitions and targets for an IT service.

An initial measurement that is taken at an early time point to represent a beginning condition, and is used for comparison over time to look for changes. For example, the size of a tumor will be measured before treatment (baseline) and then afterwards to see if the treatment had an effect.

Snapshot of the state of a CI and related CIs at a point in time

A set of existing environmental conditions upon which comparisons are made during the NEPA process.

Projection of the receipts, outlays, and other budget amounts that would ensue in the future without any change in existing policy. Baseline projections are used to gauge the extent to which proposed legislation, if enacted into law, would alter current spending and revenue levels.

a standard reference case used as a basis for comparison Examples: a simulation model of a ASHRAE 90.1 compliant building, a control building, measurement of energy consumption prior to application of an energy conservation measure Comments: Establishing a clearly defined baseline is important and defining a repeatable baseline is essential if the work is to be compared to results of other work.

A benchmark for measuring the budgetary effects of proposed changes in federal revenues or spending. As specified in section 257 of the Deficit Control Act, the baseline for revenues and direct spending generally assumes that laws now in effect will continue. The baseline projections for discretionary spending reflect the discretionary spending caps set forth in that act for each fiscal year through 2002 and then grow at the rate of inflation thereafter.

A benchmark for measuring the budgetary effects of proposed changes in federal revenues or spending. As specified in the Budget Enforcement Act of 1990 (BEA), the baseline for revenues and entitlement spending generally assumes that laws now on the statute books will continue. The discretionary spending projections are based on the discretionary spending caps set by the BEA in 1995 through 1998. The baseline with discretionary inflation adjusts discretionary appropriations for inflation; the baseline without discretionary inflation does not.

The baseline is a projection of the revenues, outlays and other budget amounts that would ensue in the future under assumed economic conditions and participation rates, without any change in existing policy. The baseline can be computed for one or more years, for the budget totals or for particular accounts and programs, and for different assumptions about future conditions. Baseline projections are used in preparing the budget resolution and in estimating deficit reductions in reconciliation bills and other legislation. 3

The initial soil condition before monitoring soil quality over time. Subsequent measurements on the same soil are compared to the baseline measurement.

The set of conditions existing at the outset of a program. Periodic comparisons to the baseline state can determine progress, or lack thereof.

A set of data used as a base to measure the impact of changes over time.

A benchmark for measuring the budgetary effects of proposed changes in federal revenues or spending. Generally, the baseline is an estimate of spending, revenue, surplus or deficit, and public debt expected during a fiscal year under current laws and policy. For purposes of the Deficit Control Act, the baseline is defined as the projection of current-year levels of new budget authority, outlays, revenues, and the surplus or deficit into the budget year and out-years based on laws enacted through the applicable date. See revenues, direct spending, and discretionary spending.

Standard used to measure activities such as budgets, schedules or other technical performance attributes.

Information gathered at the beginning of an event (start of treatment) against which variations are measured.

A pattern of hourly loads (8760) for a period of one year based on the customerâ€(tm)s “normal” consumption pattern. Provides the base consumption level against which the customerâ€(tm)s changes in consumption can be measured.

a baselevel that is suitable for a formal internal or external release

a Configuration Identification formally designated and applicable at a specific point in an items life cycle

a set of documented configurations of a product or system that is established at a specific point in time

a snapshot of the state of a configuration item (or a plan) and its component configuration items at a point in time

a special kind of version resource that captures the state of the version-controlled members of a configuration

a version resource that captures the state of each version-controlled member of a configuration

An item or collection of items of a particular shape and form used as a reference.   A baseline configuration is a reference point for evaluating modifications and enhancements and a starting point for making those changes.  This baseline is normally considered the “official” version of an installed and operational Configuration Item.

A formally approved version of a configuration item, regardless of media, formally designated and fixed at a specific time during the configuration item's life cycle.

a specification or product that has been formally reviewed and agreed on, which thereafter serves as a basis for further development and can be changed only through formal change control procedures. (Copyright 1993 IEEE. All rights reserved.)

A specification or product that has been formally reviewed and agreed upon, that thereafter serves as the basis for further development, and that can be changed only through formal change control procedures.

(1) An agreed-to description of the attributes of a product, at a point in time, which serves as a basis for defining change. (2) An approved and released document, or a set of documents, each of a specific revision; the purpose of which is to provide a defined basis for managing change. (3) The currently approved and released configuration documentation. (4) A released set of files consisting of a software version and associated configuration documentation.

A tested and certified version of a deliverable, representing the basis for further development, that can be modified only through formal change control procedures. A particular version becomes a baseline when a responsible group decides to designate it as such.

See Configuration Baseline.

A collection of approved design information about a configuration. The current configuration is acknowledged to be the approved baseline plus approved changes.

A work product (such as software or documentation) that has been formally reviewed, approved, and delivered and can only be changed through formal change control procedures. See Allocated Baseline, Functional Baseline, Operational Baseline, Product Baseline.

1. A starting point or condition against which future changes are measured. 2. A named set of object versions which fixes a configuration at a particular point in time. A baseline normally represents a milestone or key deliverable of a project.

The point at which some deliverable produced during the software engineering process is put under formal change control.

See Reference-Configuration . An interim result, chosen and released at a specific point in time during the software development process which is assembled to a software configuration, so that it is possible to refer to it in later phases of the developmental process.

(1) A description of a system and its components (configuration items) at a particular period of time, and any approved updates to the baseline. (2) A work product that has been placed under formal configuration management. A baseline should be changed only through formal configuration management procedures. Some baselines may be project deliverables while others provide the basis for further work. See also work product.

an authorized software work product that can only be changed through formal change control procedures

Configuration management is the process of managing change in hardware, software, firmware, documentation, measurements, etc. As change requires an initial state and next state, the marking of significant states within a series of several changes becomes important. The identification of significant states within the revision history of a configuration item is the central purpose of baseline identification.CMMI Product Team, "Chpt 7, Maturity Level 2: Managed, Configuration Management, SP 1.3," in Capability Maturity Model Integration, Version 1.1 (CMMI-SE/SW/IPPD/SS, V1.1): Staged Representation, Carnegie Mellon Software Engineering Institute.

Precise spacing or distance between antennas in the array. Using the VLA as an example, there are 351 baselines in its array of 27 antennas.

Accurate, quantitative data at a stated point in time that marks the beginning of a trend. If you begin to systematically track the property values in a neighborhood in January 1970 and compare subsequent years' property values with that point, then 1970 is your baseline.

a reference point at which the status of the product or product items is established and recorded so that its growth or decline can be tracked

a reference point for the origin of an application bundle

a reference point from the past -- how things used to be

Biological Reference Points

A starting point for assessing changes in performance and for establishing objectives or targets for future performance.

1) Valid and reliable information about the intended learner population used to ascertain differences between learners' performances before and after instruction. 2) A set of measurements (metrics) that seek to establish the current starting level of a performance. These measurements are usually established before implementing improvement activities.

Starting point for determining adequate yearly progress.

This is a performance figure that you take from a given point in time as a starting point to track your progress or to set future target levels.

An analysis of the efficiency of a water utilities operation at a given point of time that can be used to compare with future efficiency.

A student's current level of educational performance in a particular activity; a starting point from which to begin instructional programming.

Information describing current conditions, outcomes and results; starting point or current situation against which progress can be measured CSSP Guide 6 p 31Source web site Development Leadership Network, Success Measures Guide Book GlossarySource web site

An important study visit when a patient's vital signs and clinical symptoms are documented. The initial batch of study medication is usually dispensed during this visit and the patient's response is compared back to baseline over time.

An initial data record of a target behavior's occurrence. A baseline is used to compare the initial data to the data collected after an intervention is implemented.

The time point when a clinical trial starts, before any treatment is begun. Researchers often compare baseline tests to those made at the end of the study to see how well the treatments worked.

Data on the current process that provides the metrics against which to compare improvements and to use in benchmarking. [GAO