'Fluency' is defined as:
the ability to speak or write a foreign language easily and accurately
the ability to speak or write a foreign language quicky and accurately
Spoken fluency in the CEFR encompases issues such as:
precision, flexibility, coherence/cohesion, the ability to build utterances, and the capacity of maintaining spontaneous and lengthy conversations
precision, accuracy, coherence/cohesion, the ability to build utterances, and the capacity of maintaining spontaneous and lengthy conversations
coherence, flexibility, the ability to maintain a conversation, and be spontaneous
Core aspects in 'phonological control' include articulation, prosody (intonation, stress), accentedness accent, and intelligibility.
The CEFR has divided phonogical control into three aspects. Select them:
overall phonological control
sound articulation
prosodic features
accentedness accents
intelligibility
Sound articulation can be observed in the clarity and precision of the speaker's articulation.
Prosody is displayed by a control of stress and rhythm, and an ability to exploit and vary those features to emphasize particular messages.