Robert Cary Leif Ph.D. This schema is derived from a copyrighted schema from ECMA and are also used by Microsoft for C#. It has been extended to include positive numerical types (http://www.ecmainternational.org/) ECMA 335, Common Language Infrastructure (CLI)Partitions I to VI: Section 8.2.2 Built-in value and reference types (http://www.ecma-international.org/publications/files/ECMA-ST/Ecma-335.pdf) Standard ECMA-334, C# Language Specification (http://www.ecma-international.org/publications/standards/Ecma-334.htm) This schema includes the elements that are necessary to describe numbers. This is a DRAFT proposal that has not been formally tested to comply with the W3C XML schema version 1.0 specification. No position is taken in respect to whether a particular software implementing this schema works according to medical or other regulations. Draft Attention is called to the possibility that implementation of this specification may require use of subject matter covered by patent rights. By publication of this standard, no position is taken with respect to the existence or validity of any patent rights in connection therewith. Newport Instruments shall not be responsible for identifying patents or patent applications for which a license may be required to implement a standard or for conducting inquiries into the legal validity or scope of those patents that are brought to its attention. Copyright 2002-2009 Newport Instruments. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, or duplication of any material in this document for a fee or for commercial purposes require permission of the copyright holder. For all other uses, please contact Robert C. Leif, Ph.D. at rleif@rleif.com Since this is, at present, a research project, this schema should not be used in a medical device." Supported by Newport Instruments internal development funds. The content is solely the responsibility of the authors and does not necessarily represent the official views of any governmental or private organization. Josef Spidlen, Ph.D. created the special Float64 types, which therefore are not covered by this copyright. R. C. Leif has modified them to be consistent with the other data-types in this schema. These are from ECMA and are also used by Microsoft for C#. This will permit the user to specify the power of two of a maximum value without remembering the actual values for the powers of two. Since these types either start at zero or are symmetrical around zero, the maximum is (2**n) -1 Chapter 11 Types s × m × 2e, where s is 1 or −1, and m and e are determined by the particular floating-point type: For float, 0 less than m less than 2E24 and −149 ≤ e ≤ 104. 2E24 or 2**24= 16,777,216. Microsoft does not work with minInclusive value="-16777215E-149" and maxInclusive value="16777215E104" A type of float that is greater or equal 0 A type of float that is greater than 0 A type of float that is greater than 1 A type of float that is greater or equal 0 and less or equal 1 Chapter 11 Types "for double, 0 less than m less than 2E53 and −1075 ≤ e ≤ 970. 2E53 or 2**53 = 9,007,199,254,740,990not work with minInclusive value="-9007199254740990E1075" and maxInclusive value="9007199254740990E970" A type of double that is greater or equal 0 A type of double that is greater than 0 A type of double that is greater than 1 A type of double that is greater or equal 0 and less or equal 1