© Copyright 2016-2020 FIX Protocol Limited Creative Commons Attribution-NoDerivatives 4.0 International Public License Event parameters Any number of action behaviors can be triggered at the same time. Send a message Content of element holds an assignment expression for a state variable in the form '$actor.variable=value' Trigger a state transtion in a state machine Represents a class of participants State variables Usage specific annotation, optionally with link to an external reference or standard Reference documentation Underlying FIX datatype of codes Reference documentation for an external code set Specifies a how a component or each group entry is populated (optional) Rule to tell when a conditionally require component Override the component name for this instance, for code generation and the like. Allows more than one instance of a component in a message. Name of this rule Overrides presence when expression is true A hint to processes about how to interpret the element. Not validated. General Purpose Datatypes Google Protocol Buffers JSON Schema Simple Binary Encoding XML Schema and FIXML FIX classic encoding Extensible datatype standards Expressed in a Domain Specific Language Attributes of a field that be overridden by a rule Inclusive lower bound Inclusive upper bound Fixed length Character encoding if other than US-ASCII If presence is optional, then it represents a default when the sender does not provide the field. If presence is constant, then it is the constant value. A hint to processes about how to interpret the element. Not validated. Rule to tell when a conditionally require field is required or forbidden, to override other attributes, or perform validation. Content of element holds an assignment expression for a message field or state variable Identifies a field used as a length prefix Override the field name for this instance, for code generation and the like. Allows more than one instance of a field in a message or component. Other field or fields that scope uniqueness. If none provided, then the field value must be globally unique. Content of element holds an assignment expression for a message field or state variable. This can be used for field validation. Name of this rule Overrides the type of the referenced field. Rule to tell when a conditionally require field is required or forbidden, to override other attributes, or perform validation. Content of element holds an assignment expression for a message field or state variable Attribute type refers to either a datatype or a codeSet, which carries an underlying datatype. Identifies a field used as a length prefix Identifies a field used as a discriminator for this field's domain A stream of messages in one direction Name of the actor that originates messages Name of the actor that receives messages. A repeating group. Logically, groupType is a subclass of componentType, but to make numInGroup first in the sequence, it cannot be an extension. A hint to processes about how to interpret the element. Not validated. Lower bound of group instances (numInGroup) Upper bound of group instances (numInGroup) Member selection within each group instance Correlated field IDs between two message types Field ID assigned Field ID assigned or correlated in a message reference Field ID correlated from source message. If not present, assumed to be same tag as 'id'. A datatype may be mapped to an XML snippet in the native schema belonging to its encoding standard. Inclusive lower bound Inclusive upper bound Members are mutually exclusive; exactly one must be present. At least one of the members must be present. A hint to processes about how to interpret the element. Not validated. The same message type may be sent one or more times Responses are evaluated and triggered in the order listed Multipurpose Internet Mail Extensions (MIME) media type The identifiers of a message element Numeric identifier generally must be unique within a file for an element type, e.g. unique field tag The use case of an element, distinguished by workflow, asset class, etc. The field or component MAY be present; it may be conditionally required based on a rule. The field or component MUST be present. The field or component MUST NOT be present. The field or component MAY be present but is not validated. The field has a constant value; in some encodings it need not be sent on the wire. Recommended annotation purposes For UI when different from canonical name; may have multi-language displays Extensible annotation purposes A reference to a message element by its key identifiers Numeric identifier generally must be unique within a file for an element type, e.g. unique field tag The use case of an element, distinguished by workflow, asset class, etc. Message delivery gurantee Any number of action behaviors can be triggered by the same 'when' condition A common condition for all of the actions. If it evalutes true, then the actions are invoked. If 'when' is not present, the actions are unconditional. Initial state of a state machine A state of a state machine. If it has no transitions, then it is a final state. Operation fired when entering a state. Operation fired when entering a state and completing when exiting or earlier. Operation fired when exiting a state. Support level Event timing is completely independent Requests in-progress block subsequent requests Response timing is dependent on a request, but multiple requests can be in-flight Cancel and restart Action to take when a timer expires Name of the actor that owns the timer Name of the timer Optional guard condition. The transition is allowed if the condition evaluates true. If not present, the transition is unconditional. The target state of the transition Name of the state machine Name of the actor that owns the state machine Name of the transition to invoke Enumerated FIX versions or major.minor or date as yyyymmdd of any protocol