ITU-T Rec. X.682 (07/2002) Information technology - Abstract Syntax Notation One (ASN.1): Constraint specification Summary Source FOREWORD CONTENTS Introduction 1 Scope 2 Normative references 2.1 Identical Recommendations | International Standards 3 Definitions 3.1 Specification of basic notation 3.2 Information object specification 3.3 Parameterization of ASN.1 specification 3.4 Additional definitions 4 Abbreviations 5 Convention 6 Notation 6.1 Constraint 7 ASN.1 lexical items 7.1 Additional keywords 8 General constraint specification 9 User-defined constraints 10 Table constraints, including component relation constraints 11 Contents constraints Annex A - Constraining instance-of types Annex B - Summary of the notation