01: /*
02: * JScience - Java(TM) Tools and Libraries for the Advancement of Sciences.
03: * Copyright (C) 2006 - JScience (http://jscience.org/)
04: * All rights reserved.
05: *
06: * Permission to use, copy, modify, and distribute this software is
07: * freely granted, provided that this notice is preserved.
08: */
09: package javax.measure.quantity;
10:
11: /**
12: * <p> This interface represents any type of quantitative properties or
13: * attributes of thing. Mass, time, distance, heat, and angular separation
14: * are among the familiar examples of quantitative properties.</p>
15: *
16: * <p> Distinct quantities have usually different physical dimensions; although
17: * it is not required nor necessary, for example {@link Torque} and
18: * {@link Energy} have same dimension but are of different nature
19: * (vector for torque, scalar for energy).</p>
20: *
21: * @author <a href="mailto:jean-marie@dautelle.com">Jean-Marie Dautelle</a>
22: * @version 4.0, February 25, 2007
23: * @see <a href="http://en.wikipedia.org/wiki/Quantity">Wikipedia: Quantity</a>
24: * @see <a href="http://en.wikipedia.org/wiki/Dimensional_analysis">
25: * Wikipedia: Dimensional Analysis</a>
26: */
27: public interface Quantity {
28:
29: // No method - Tagging interface.
30:
31: }
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