noun, noun which may take the genitive case particle 'no'
tentative plan; draft proposal
A preliminary or trial plan, often used in business, policy, or committee contexts. Implies it is subject to revision.
The committee announced a tentative plan for the new system.
At the draft proposal stage, there is still a possibility of changes.
The committee drew up a tentative plan for the new system.
He submitted a draft proposal to his boss.
This plan was presented as a tentative proposal.
It was decided that the tentative plan would be examined at the meeting.
原案 is the original proposal used as the starting point for discussion, whereas 試案 is explicitly experimental and expected to change.
素案 is a rough sketch of an idea before it's formalized, while 試案 is a more developed tentative plan ready for review.
私案 (しあん) is pronounced identically to 試案 but means a personal, unofficial proposal rather than a trial plan open for revision.
思案 (しあん) sounds the same as 試案 but means deliberation or pondering over something, not a written tentative plan.
試案 is typically counted with 件 as in 一件の試案, treating each tentative plan as a matter or item under discussion.
Compound of 試 (trial, test) and 案 (plan, proposal).