Capabilities Of Access (Tree Diagrams?!)

Hi,

I am part of a team working on part of an ongoing project that requires a flexible and easy to update database from which to compile our data. The general format that we have, is that of a "Tree Diagram" (see sample attached). As you can see, this is where one branch has in turn several branches and this cascades downwards to some base values.

On the diagram you can see that I have used the example of "Costs In Football". Firstly the tree is branched into countries where football leagues exist (England, France etc...), each of these countries then has a number of leagues - I have only shown this for the English leagues. These leagues are all made up of teams, only following the Premiership league, you can see some of the teams in it (Arsenal, Chelsea...). Using the Liverpool team, the team is then made up of players such as Gerrard, Reina etc...
These players have a specific postion where they play (i.e. Goalkeeper, defence, midfield, attack) - this has been illustrated with only "Gerrard". The next set of branches examines the costs associated with each player (current value, weekly wage...)
The weekly wage is then examined in more detail by what components make it up and their respective costs. I have stopped the tree here and I am using this last line as the base values.

Now, what we wish to do, is to be able to calculate easily (and automatically) what costs are associated at each level of the tree diagram. i.e. "How much money is spent on wages in all the clubs in the Premiership league", or "Which country spends the most on Sponsorship Deals?"

The flexibility of the database must also be high. Each year the teams that make up each league are changed - we need to be able to make these changes to the database - and the automatically calculated values must change along with the changes.
Also, if a club buys a player - i.e. Liverpool (England) buy Beckham (Real Madrid, Spain) then the details for both Liverpool and consequently the Premiership league will have to change, along with the details for Real Madrid and the Spanish data.

In short, additions of data, changes of data and deletions of data must result in the database automatically changing the values involved in each step of the tree. i.e the change made in the Players branch must cascade up and down the branch so that the calculations at every level are recalculated.

Any help and feedback on this would be much appreciated,

Thanking you,

Matt.