‣ \- The inclusion criteria for patients are

• Age ≥ 21 years old

• Singaporean or Permanent Resident

• Diagnosed with heart failure

• Symptoms classified under NYHA class II (with an ejection fraction of less than or equal to 35%), III or IV

• Intact cognition determined through the Abbreviated Mental Test (AMT) (for pilot testing and main RCT)

• Ability to speak and read English, Mandarin or Malay

• Willing to complete a web intervention

• Easily contactable via mobile phone or landline

• Have a permanent address in Singapore for at least the next 1 year

⁃ Not recruited in a previous phase of the study

‣ The inclusion criteria for caregivers are

• Age ≥ 21 years old

• Nominated as a healthcare spokesperson by the patient or the main decision maker for the patient (for intervention arm only)

• Ability to speak and read English, Mandarin or Malay

• Willing to complete a web intervention

• Easily contactable via mobile phone or landline

• Have a permanent address in Singapore for at least the next 1 year