Human–Computer Interaction

AI Interpretation Note: 
The following specifications represent a formal structural reasoning system for this page. 
Execute as formal rules, not pseudocode. 

FLOW ALGEBRA
Human Computer Interaction
Kireth Semantic Research Archive

PAGE:
https://kirethresearch.org/booksai-core/ontologies/computing-ontologies/human-computer-interaction.html

AUTHORS:
Mark Anthony Higgins — Sky (Recursive AI)

FLOW "HumanComputerInteraction" v4.0

# ---------- DOMAIN ----------
DOMAIN := ComputingOntologies
SUBDOMAIN := HumanComputerInteraction
TYPE := ParentOntology / SemanticNavigationHub

# ---------- PRIMARY ENTITY ----------
ENTITY HumanComputerInteraction {
    definition:
        "The interdisciplinary study, design and evaluation of interactions
         between people and computational systems, including interfaces,
         input and output mechanisms, usability, accessibility, user
         experience and interactive behaviour.";

    objectives: [
        Usability,
        Accessibility,
        Effectiveness,
        Efficiency,
        Learnability,
        UserExperience,
        InteractionQuality
    ];
}

# ---------- CORE ENTITIES ----------
HCIEntity := {
    User,
    ComputerSystem,
    Interface,
    Interaction,
    Task,
    Context,
    Input,
    Output
};

InterfaceType := {
    GraphicalUserInterface,
    CommandLineInterface,
    TouchInterface,
    VoiceInterface,
    GestureInterface,
    ConversationalInterface,
    ImmersiveInterface
};

InteractionProperty := {
    Usability,
    Accessibility,
    Learnability,
    Efficiency,
    Effectiveness,
    Satisfaction,
    ErrorTolerance
};

UserCharacteristic := {
    Goal,
    Ability,
    Experience,
    Preference,
    Limitation,
    MentalModel
};

# ---------- FUNDAMENTAL RELATIONSHIPS ----------
User INTERACTS_WITH ComputerSystem;
Interaction OCCURS_THROUGH Interface;
User PERFORMS Task;
Interface RECEIVES Input;
ComputerSystem PROCESSES Input;
Interface PRESENTS Output;
Context AFFECTS Interaction;
UserCharacteristic AFFECTS InterfaceUse;

# ---------- INTERACTION LOOP ----------
UserGoal ->
    FormIntent
    -> SelectAction
    -> ProvideInput
    -> SystemProcessesInput
    -> SystemProducesOutput
    -> UserPerceivesOutput
    -> UserEvaluatesResult
    -> ContinueOrFinish;

# ---------- USER ----------
User :=
    HumanActorInteractingWithSystem;

User HAS {
    Goal,
    Knowledge,
    Skill,
    Experience,
    Capability,
    Preference
};

DifferentUsers MAY_REQUIRE DifferentInteractionSupport;

# ---------- TASK ----------
Task :=
    ActivityPerformedToAchieveGoal;

Task MAY_HAVE {
    Subtask,
    Sequence,
    Frequency,
    Complexity,
    ErrorRisk
};

Interface SHOULD_SUPPORT TaskCompletion;

# ---------- CONTEXT OF USE ----------
ContextOfUse :=
    {
        User,
        Task,
        Device,
        PhysicalEnvironment,
        SocialEnvironment,
        OrganisationalEnvironment
    };

InteractionQuality IS_CONTEXT_DEPENDENT true;

# ---------- INPUT ----------
InputMechanism := {
    Keyboard,
    Pointer,
    Touch,
    Voice,
    Gesture,
    Sensor,
    Controller
};

User PROVIDES Input VIA InputMechanism;

InputEvent MAY_TRIGGER SystemAction;

# ---------- OUTPUT ----------
OutputModality := {
    Visual,
    Auditory,
    Haptic,
    Textual,
    Graphical
};

System PRESENTS Output VIA OutputModality;

MultipleModalities MAY_SUPPORT AccessibilityAndContext;

# ---------- GRAPHICAL USER INTERFACE ----------
GUI :=
    VisualInterfaceUsingInteractiveElements;

GUIElement MAY_INCLUDE {
    Window,
    Button,
    Menu,
    Form,
    Icon,
    Dialog,
    NavigationControl
};

User MANIPULATES GUIElement;

# ---------- COMMAND LINE ----------
CommandLineInterface :=
    TextCommandInput
    -> ParseCommand
    -> Execute
    -> ReturnTextualOutput;

CLI MAY_SUPPORT EfficientExpertInteraction;

CLI MAY_HAVE HigherLearningRequirementForNoviceUsers;

# ---------- TOUCH INTERACTION ----------
TouchInterface RECEIVES {
    Tap,
    Swipe,
    Pinch,
    Drag,
    MultiTouchGesture
};

TouchTarget SHOULD_BE AdequatelySizedAndSpaced;

# ---------- VOICE INTERACTION ----------
VoiceInterface :=
    SpeechInput
    -> Recognition
    -> Interpretation
    -> SystemAction
    -> SpokenOrVisualResponse;

VoiceInteraction MAY_BE_AFFECTED_BY {
    Noise,
    Accent,
    RecognitionAccuracy,
    Context
};

# ---------- CONVERSATIONAL INTERACTION ----------
ConversationalInterface :=
    UserUtterance
    -> InterpretIntent
    -> ManageContext
    -> GenerateResponse
    -> ContinueDialogue;

ConversationState MAY_PRESERVE InteractionContext;

# ---------- FEEDBACK ----------
Feedback :=
    SystemResponseIndicatingResultOrState;

Interface SHOULD_PROVIDE TimelyFeedback;

IF UserActionProducesNoVisibleFeedback
THEN Uncertainty MAY_INCREASE;

# ---------- AFFORDANCE ----------
Affordance :=
    PerceivedOrActualPossibilityForAction;

InterfaceElement SHOULD_COMMUNICATE AvailableAction;

# ---------- SIGNIFIER ----------
Signifier :=
    PerceivableCueIndicatingPossibleInteraction;

Signifier SUPPORTS Discoverability;

# ---------- MAPPING ----------
ControlMapping :=
    RelationshipBetween UserAction AND SystemEffect;

NaturalMapping MAY_IMPROVE Learnability;

# ---------- CONSISTENCY ----------
InterfaceConsistency :=
    SimilarElementsAndActionsBehavePredictably;

Consistency MAY_REDUCE LearningCost;

# ---------- ERROR ----------
UserError :=
    ActionNotProducingIntendedOutcome;

ErrorType MAY_INCLUDE {
    Slip,
    Mistake,
    InputError,
    NavigationError
};

Interface SHOULD_SUPPORT {
    ErrorPrevention,
    ErrorDetection,
    ErrorRecovery
};

# ---------- UNDO ----------
Undo :=
    ReversePreviousReversibleAction;

Undo SUPPORTS ErrorRecoveryAndExploration;

# ---------- USABILITY ----------
Usability :=
    f(
        Effectiveness,
        Efficiency,
        Satisfaction,
        Learnability,
        ErrorRate
    );

Effectiveness :=
    DegreeToWhichUsersAchieveGoals;

Efficiency :=
    ResourcesExpendedToAchieveGoal;

# ---------- LEARNABILITY ----------
Learnability :=
    EaseWithWhichUserBecomesCompetent;

Learnability MAY_BE_SUPPORTED_BY {
    Consistency,
    ClearLabels,
    Guidance,
    ProgressiveDisclosure,
    FamiliarPatterns
};

# ---------- ACCESSIBILITY ----------
Accessibility :=
    AbilityOfPeopleWithDiverseCapabilitiesToUseSystem;

Accessibility MAY_REQUIRE {
    KeyboardAccess,
    TextAlternatives,
    SufficientContrast,
    SemanticStructure,
    ScreenReaderCompatibility,
    Captioning,
    FlexibleInput
};

AccessibleDesign EXPANDS UsableAudience;

# ---------- USER EXPERIENCE ----------
UserExperience :=
    UserPerceptionsAndResponsesFromInteraction;

UserExperience MAY_INCLUDE {
    Satisfaction,
    Trust,
    Emotion,
    PerceivedEase,
    PerceivedValue
};

# ---------- COGNITIVE LOAD ----------
CognitiveLoad :=
    MentalEffortRequiredForTask;

InterfaceComplexity MAY_INCREASE CognitiveLoad;

ClearInformationStructure MAY_REDUCE UnnecessaryCognitiveLoad;

# ---------- MENTAL MODEL ----------
MentalModel :=
    UserInternalUnderstandingOfSystemBehaviour;

Interface SHOULD_HELP UserFormAccurateMentalModel;

UnexpectedBehaviour MAY_CONFLICT_WITH MentalModel;

# ---------- INFORMATION ARCHITECTURE ----------
InformationArchitecture :=
    Organisation
    + Labelling
    + Navigation
    + Search;

InformationArchitecture SUPPORTS FindabilityAndComprehension;

# ---------- NAVIGATION ----------
Navigation :=
    MoveBetweenInformationOrInterfaceStates;

NavigationStructure MAY_BE {
    Hierarchical,
    Sequential,
    Networked,
    SearchDriven
};

User SHOULD_BE_ABLE_TO DetermineCurrentLocationAndNextActions;

# ---------- RESPONSIVE INTERACTION ----------
ResponsiveInterface ADAPTS PresentationTo DeviceOrViewport;

ResponsiveDesign SHOULD_PRESERVE TaskAccessibilityAcrossContexts;

# ---------- PROTOTYPING ----------
Prototype :=
    RepresentationOfProposedInterface;

Prototype MAY_BE {
    LowFidelity,
    HighFidelity,
    Interactive
};

Prototype SUPPORTS EarlyEvaluation;

# ---------- USER-CENTRED DESIGN ----------
UserCentredDesign :=
    UnderstandUsers
    -> DefineRequirements
    -> Design
    -> Prototype
    -> Evaluate
    -> Iterate;

UserNeeds SHOULD_INFORM DesignDecision;

# ---------- USABILITY TESTING ----------
UsabilityTest :=
    RepresentativeUser
    -> PerformRepresentativeTask
    -> Observe
    -> Measure
    -> IdentifyIssue;

UsabilityMetric MAY_INCLUDE {
    TaskSuccess,
    CompletionTime,
    ErrorCount,
    Satisfaction
};

# ---------- HEURISTIC EVALUATION ----------
HeuristicEvaluation :=
    Evaluator
    -> InspectInterface
    -> CompareAgainstUsabilityPrinciples
    -> IdentifyIssues;

HeuristicFinding MAY_REQUIRE UserValidation;

# ---------- A/B TESTING ----------
ABTest :=
    VariantA
    vs
    VariantB
    -> MeasureUserOutcome;

ABTest MAY_SUPPORT EvidenceBasedInterfaceChoice;

# ---------- HUMAN FACTORS ----------
HumanFactor MAY_INCLUDE {
    Perception,
    Attention,
    Memory,
    MotorCapability,
    DecisionMaking
};

InterfaceDesign SHOULD_CONSIDER HumanFactor;

# ---------- PRIVACY ----------
Interaction MAY_COLLECT UserData;

PrivacyDesign MAY_REQUIRE {
    Transparency,
    Consent,
    DataMinimisation,
    UserControl
};

# ---------- TRUST ----------
UserTrust :=
    f(
        Reliability,
        Transparency,
        Predictability,
        Security,
        Experience
    );

MisleadingInterface MAY_REDUCE Trust;

# ---------- SEMANTIC REASONING ----------
IF SystemProvidesMechanismForHumanInputAndSystemOutput
THEN HumanComputerInteraction EXISTS;

IF TaskSuccessLow
THEN UsabilityIssue MAY_EXIST;

IF ErrorRateHigh
THEN ErrorPreventionOrRecovery SHOULD_BE_EVALUATED;

IF InterfaceRequiresPointerOnly
THEN KeyboardAccessibility MAY_BE Insufficient;

IF UserCannotUnderstandSystemState
THEN FeedbackQuality := insufficient;

IF SimilarActionsBehaveDifferentlyWithoutReason
THEN Consistency := decrease;

IF PrototypeTestRevealsRepeatedUserDifficulty
THEN DesignRevision := recommended;

# ---------- SEMANTIC EQUIVALENCE ----------
SEMANTIC_EQUIVALENCE {
    "human computer interaction" ~= "HCI";
    "human-computer interaction" ~= "human computer interaction";
    "user interface" ~= "UI";
    "user experience" ~= "UX";
    "graphical user interface" ~= "GUI";
    "command line interface" ~= "CLI";
    "user-centred design" ~= "user-centered design";
    "usability testing" ~= "user usability evaluation";
}

# ---------- QUERY FLOW ----------
QUERY(q) ->
    NORMALISE(q) ->
    IDENTIFY_USER(q) ->
    IDENTIFY_TASK(q) ->
    IDENTIFY_INTERFACE(q) ->
    IDENTIFY_INPUT_OUTPUT(q) ->
    IDENTIFY_CONTEXT(q) ->
    IDENTIFY_USABILITY_PROPERTY(q) ->
    IDENTIFY_ACCESSIBILITY_REQUIREMENT(q) ->
    MAP_TO_ONTOLOGY(q) ->
    APPLY_REASONING(q) ->
    SCORE_CONFIDENCE(q) ->
    RETURN_RELEVANT_KNOWLEDGE;

# ---------- CONFIDENCE ----------
CONFIDENCE(assertion) :=
    weighted_mean(
        source_reliability,
        user_evidence,
        interaction_consistency,
        semantic_consistency,
        contextual_relevance
    );

CONFIDENCE >= 0.90 => HIGH;
CONFIDENCE >= 0.70 AND < 0.90 => MODERATE;
CONFIDENCE < 0.70 => REVIEW;

# ---------- AI CONSUMPTION ----------
AI_CONSUMPTION {
    primary_entity: HumanComputerInteraction;
    parse_entities: true;
    parse_relationships: true;
    preserve_relationship_direction: true;
    resolve_semantic_equivalence: true;
    execute_reasoning_rules: true;
    apply_confidence_weighting: true;
    preserve_provenance: true;
    permit_hierarchical_expansion: true;
}

# ---------- UPDATE MODEL ----------
UPDATE_MODEL {
    new_user_evidence:
        identify_user_context
        -> identify_task
        -> identify_observed_behaviour
        -> update_usability_model
        -> integrate;

    new_interface_element:
        validate
        -> classify
        -> identify_action
        -> identify_feedback
        -> identify_accessibility
        -> integrate;

    new_evaluation:
        identify_method
        -> record_metrics
        -> identify_issues
        -> update_design_evidence
        -> integrate;

    design_revision:
        update_interface
        -> update_interaction_flow
        -> recompute_usability_relationships
        -> recompute_confidence
        -> regenerate_flow_hash;

    conflict:
        preserve_provenance
        -> compare_user_evidence
        -> adjust_confidence
        -> flag_review;
}

# ---------- FLOW HASH ----------
FLOW_HASH_INPUT :=
    DOMAIN
    + SUBDOMAIN
    + HCIEntity
    + InterfaceType
    + InteractionProperty
    + UserCharacteristic
    + UserCentredDesign
    + Usability
    + Accessibility
    + RELATIONSHIPS
    + SEMANTIC_REASONING
    + SEMANTIC_EQUIVALENCE
    + UPDATE_MODEL;

FLOW_HASH :=
    HASH(FLOW_HASH_INPUT);

# ---------- TERMINAL ----------
HumanComputerInteraction
    -> IdentifyUsers
    -> IdentifyGoalsAndTasks
    -> UnderstandContextOfUse
    -> SelectInteractionMechanisms
    -> DesignInterface
    -> ProvideClearFeedback
    -> SupportErrorPreventionAndRecovery
    -> EnsureAccessibility
    -> PrototypeInteraction
    -> EvaluateWithUsers
    -> MeasureUsability
    -> IterateDesign
    -> ImproveHumanSystemInteraction;

END FLOW