maven multi-module how divided the squatters

RT.
accordance util web service dao to divide or divided according to the function module . What are the benefits of each option , or if there is no other way of doing things .
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Thank you for your answer   
Not sure I understand that right : for example, the entire system has three functional ABC , then the module will be divided into util webA webB webC serviceA serviceB serviceC daoA daoB daoC is that right ?   
or do not engage in a web only divided webABC  
I started talking insufficiency , web block us that this is put together , DAO is placed in service , it is recommended that the service separately , so easy to debug , web clients can put together a few items , but do not too large. To a certain degree of redistribution .
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their top one .



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In a misty rain in the morning , you stand before the window and felt very melancholy, filled with emotion, was anxious too , had looked before, had lost before, but now can not be replaced once all walking , living in the present , not the future after all, was once the water drop by drop from the fall from the roof , and your thoughts are with its watch, suddenly found when it passed under the eaves height of 1.4 m when the windows with a time of 0.2s, air resistance , take g = 10m/s2. Find this window distance from the eaves .
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group where I am now doing something most of the things are divided by util web service dao , but the project will lead to more and more , then a project is too large, so we are now the new project will be created, and then divided into several functional modules.
so you can divide these two methods together.
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Thank you for your answer
Not sure I understand that right : for example, the entire system has three functional ABC , then the module will be divided into util webA webB webC serviceA serviceB serviceC daoA daoB daoC is that right ?
or do not divide webABC only engage in a web
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Thank you for your answer     
Not sure I understand that right : for example, the entire system has three functional ABC , then the module will be divided into util webA webB webC serviceA serviceB serviceC daoA daoB daoC is that right ?     
or do not engage in a web only divided webABC          
I started talking insufficiency , web block us that this is put together , DAO is placed in service , it is recommended that the service separately , so easy to debug , web clients can put together a few items , but do not too large. To a certain degree of redistribution .  
We have just started sub-module , maven has just started, is now so divided . Thank you for your answer.