Holographic will: written entirely by the hand of the testator, dated, and signed.
Witnessed will: made in writing, signed by the testator or by another at the testator's direction and in the testator's presence, and witnessed by two persons of full age and capacity.
Notarial or official will: received by a competent authority or public officer authorised for the purpose.
Digital will: executed and authenticated through secure electronic means as prescribed by law, subject to Article 46 of the Fundamental Laws.
A testamentary disposition may be revoked or amended at any time by a subsequent disposition executed in one of the forms listed above, or by physical destruction of the document by the testator with the intention of revoking it.
A testamentary disposition is interpreted according to the true intention of the testator. Where the intention is doubtful, the disposition is interpreted in favour of the heir or legatee.