That is why you are here, isn't it?
You want to know where we come into the
picture, don't you? Well, I hope so, because we want to be in that
picture, your picture that is, with you, building your computer database, so that you
can do what
you do better and easier, with a minimum of hassle and fewer problems.
So to continue,
you may be asking what that diagram is below? Well, maybe
but I'm getting to that.
Protometrix Systems develops,
customizes, modifies and maintains
databases and their associated supporting software. But we also do
work that complements the basic mission of database systems.
for instance, is one thing that we have done for our customers and can do for you as well. We can provide training on a variety of topics,
of course, database systems to software programming to office suite
software. But more on that later, if you are interested.
below represents a simple database. Real computer databases and
real personal databases are usually much more complex. But this
diagram is a good
place to start, since it shows the linkage between 4 different parts, the Customer,
the Orders, the Order Details and the Products.
Now, not every organization
sells products to customers from an inventory, but everyone has
do request services or products of some type, so the analogy is
So the diagram below
is called an Entity Relationship Diagram or ERD
By now you must be asking, what is he talking about? [click
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