BS Z 19:2000

1 INTRODUCTION
      1.1 PURPOSE AND SCOPE
      1.2 APPLICABILITY
      1.3 RATIONALE
      1.4 DOCUMENT STRUCTURE
      1.5 DEFINITIONS
             1.5.1 TERMS
             1.5.2 NOMENCLATURE
             1.5.3 CONVENTIONS
      1.6 REFERENCES
2 OVERVIEW
      2.1 DESIGN AIMS
      2.2 STRUCTURE OF AN EAST DESCRIPTION
      2.3 LANGUAGE SUMMARY
3 DEFINITION OF THE EAST LANGUAGE
      3.1 LEXICAL ELEMENTS
             3.1.1 SEPARATORS AND DELIMITERS
             3.1.2 COMMENTS
             3.1.3 IDENTIFIERS
             3.1.4 NUMERIC LITERALS
      3.2 LOGICAL DESCRIPTION
             3.2.1 TYPE DECLARATIONS
             3.2.2 SUBTYPE DECLARATIONS
             3.2.3 OBJECT DECLARATIONS
             3.2.4 REPRESENTATION CLAUSES
      3.3 PHYSICAL DESCRIPTION
             3.3.1 WAY OF STORING ARRAYS
             3.3.2 WAY OF STORING OCTETS/BITS
             3.3.3 REPRESENTATION OF SCALAR TYPES
             3.3.4 RELATIONSHIP BETWEEN THE REPRESENTATION
                      OF SCALAR TYPES AND LOGICAL TYPES
             3.3.5 TEMPLATE OF A PHYSICAL DESCRIPTION PART
4 RESERVED KEYWORDS
5 CONFORMANCE
ANNEX A - ACRONYMS AND GLOSSARY
ANNEX B - CHARACTER DEFINITION
ANNEX C - EAST FORMAL SYNTAX SPECIFICATIONS
ANNEX D - MAIN DIFFERENCES BETWEEN ADA AND EAST
ANNEX E - INFORMATIVE REFERENCES
INDEX
FIGURES 1-1 TO 3-45
EXAMPLES 1-1 TO 3-43

Establishes a common Recommendation for the specification of a standard language for describing and expressing data in order to interchange them in a more uniform and automated fashion within and among Agencies participating in the Consultative Committee for Space Data Systems (CCSDS).