The suggestions were launched by the Syrian opposition's High Negotiation Commission during a Friends of Syria meeting earlier in the month.
It outlined a political solution to the current conflict, where the UK plays a key role.
The document suggests a three-phase process that includes an overview of the negotiation process, a transitional period, and an idea for the foundations upon which a new political system should be based.
The conflict:
- war grew out of the unrest of the 2011 Arab Spring
- escalated to conflict after President Bashar al-Assad's government repressed protests
- who is fighting: the Syrian Government, rebels, and Islamic State
- who else is involved: UK, USA, France, Russia
Hind Kabawat, a senior Christian member of the High Negotiation Commission, said: "Syrian people from all faiths need protection, especially the Sunni majority.
"The Syrian people are trapped between two killing machines: the dictator regime, and the extremist groups."
The Commission states that: "a new political system shall be established based on a number of basic principles, including: the sovereignty, independence, and territorial integrity of Syria; a multi-party state based on freedom, democratic practice, inclusiveness, representation, and citizenship; the rule of law, human rights, and accountability, with effective mechanisms to ensure respect of human rights and dignity for all Syrians, and ensuring Syrians' right to full participation in the political process. There shall be an inclusive national dialogue launch with no exceptions or exclusion."
CSW's Chief Executive, Mervyn Thomas, said: "CSW welcomes this document, which provides a comprehensive road map to peace, pluralism and justice, and urges all of Syria's warring factions to implement its provisions.
"We also call upon all warring parties to respect international humanitarian law and to prioritise the protection of civilians at all times.
"We appeal to the international community to step up efforts to bring an end to this conflict, and should the political process fail, to consider other options, including the creation of a United Nations Stabilisation and Peace Enforcement Mission for Syria."
