A computer-implemented method for providing guidance to a user on where to arrange an object of interest in an operating room, the method comprising: obtaining scene data indicative of a spatial pose of at least one item arranged within the operating room; obtaining first constraint data indicative of one or more requirements on a spatial relationship between a first object of interest and the at least one item arranged within the operating room; determining, based on the scene data and the first constraint data, at least one primary spatial portion chosen from (a) a first spatial portion in which the first object of interest is recommended to be arranged, the first spatial portion being larger than the first object of interest, and (b) a second spatial portion in which the first object of interest is not allowed to be arranged; obtaining, for each of at least one second object of interest, second constraint data indicative of one or more requirements on a spatial relationship between the second object of interest and the first object of interest; determining, for each of the at least one second object of interest, based on the determined primary spatial portion and the second constraint data, at least one secondary spatial portion chosen from (a) a third spatial portion in which the second object of interest is recommended to be arranged, and (b) a fourth spatial portion in which the second object of interest is not allowed to be arranged; triggering display of a visualization of the at least one primary spatial portion to guide a user on where to arrange the first object of interest in the operating room; and triggering, for each of the at least one second object of interest, display of a visualization of the at least one secondary spatial portion to guide a user on where to arrange the at least one second object of interest in the operating room. obtaining scene data indicative of a spatial pose of at least one item arranged within the operating room; obtaining first constraint data indicative of one or more requirements on a spatial relationship between a first object of interest and the at least one item arranged within the operating room; determining, based on the scene data and the first constraint data, at least one primary spatial portion chosen from (a) a first spatial portion in which the first object of interest is recommended to be arranged, the first spatial portion being larger than the first object of interest, and (b) a second spatial portion in which the first object of interest is not allowed to be arranged; obtaining, for each of at least one second object of interest, second constraint data indicative of one or more requirements on a spatial relationship between the second object of interest and the first object of interest; determining, for each of the at least one second object of interest, based on the determined primary spatial portion and the second constraint data, at least one secondary spatial portion chosen from (a) a third spatial portion in which the second object of interest is recommended to be arranged, and (b) a fourth spatial portion in which the second object of interest is not allowed to be arranged; triggering display of a visualization of the at least one primary spatial portion to guide a user on where to arrange the first object of interest in the operating room; and triggering, for each of the at least one second object of interest, display of a visualization of the at least one secondary spatial portion to guide a user on where to arrange the at least one second object of interest in the operating room.