Then what are the Vedas (Vedic knowledge):

• Sruti (Revealed absolute Truth, Every word unchanged eternally)
• Smrti (Composed by sages, Wording may change from age to age)

Sruti:

• Vedas (Rg, Yajur, Sama, Atharva): Each of these four have corresponding:
  • Samhitas (mantras)
  • Brahmanas (ritual explanation of mantras)
  • Aranyakas (esoteric explanation of mantras)
  • Upanisads/Jnana-kanda (philosophy of Brahman)
• Upavedas (Dhanurveda, Ayurveda, etc)
• Vedangas, which consists of:
  • Kalpa (ritual details)
  • Siksa (pronunciation)
  • Vyakarana (grammar)
  • Nirukta (etymology)
  • Chandas (meters)
  • Jyotisa (astronomy-time calculation)]

Smrti:

• Ritual Sutras (connected to Kalpa-vedanga), which is to be devided in:
  • Srauta Sutras (explains public yajnas)
  • Grhya Sutras (explains home yajnas)
  • Dharma Sutras (Law books, including Manu Samhita and others)
• Tantras (Spoken by Lord Siva to Parvati)
• Pancaratras (Vaisnava worship), which contains Tamasic, Rajasic and Sattvic divisions
• Puranas (18 major and 18 minor)
• Itihasas (Ramayana and Mahabharata)
• Six Darshanas:
  • VEDANTA, (Vyasa), (Metaphysics), theology of Upanisads
  • MIMAMSA, (Jaimini), (Hermeneutics), interpreting scriptural texts
  • NYAYA, (Gautama), (Epistemology, logic), philosophy of knowledge including logic
  • VAISESIKA, (Kanada), (Metaphysics), philosophy of existence
  • YOGA, (Patanjali), (Sadhana)
  • SANKHYA, (Atheist Kapila), (Metaphysics)

Vedanta and Mimamsa are sisters as are Nyaya and Vaisesika. So are Yoga and Sankhya.