Some Discussion of HPM
PP3 - 10
I will use HPM to denote the text book by Hoffer, Prescott and
Continental. The book starts with a case about Continental and how databases have contributed to a turn around. Clearly airlines are operations intensive businesses. The tiniest flaws in their operations will disrupt their ability to attract and keep customers.
Think about what all airlines must be keeping data, that hopefully becomes information, about.
Obviously, this list goes on and on.
But airlines need to be able to adapt as quickly as they can adapt to things like changes in weather, problems with planes, delays and even illnesses in their crews.
Somehow the data needs to be reliable and accessible. Decision making can be terribly complex when faced with so many fast happening operational impacts.
While living in Missoula, Montana I was required to fly either Delta or Northwest. Missoula has a pretty small airport. At some point, even though I was probably flying about 20,000 miles a year with Northwest, they started treating me like I wasn't a customer who was giving them enough business so they would no longer assign me seats until just before boarding. In fact I was told this by an agent at the counter. I knew from talking to other passengers that I was actually flying more than most everyone around me. And they all had assigned seats! I made sure to contact Northwest and they just brushed it off. Needless to say I now avoid Northwest now that I can.
Introduction. The introduction in HPM expends quite a bit of effort convincing the reader that a study of databases is worthwhile. Too often our education doesn't tie back into the competitive needs of the organizations we will be working for. I see the HPM discussion as focusing on how databases improve and organization's abilities to compete.
Obviously there are all kinds of data, that should become information, that organizations should be collecting. They should have data on
Obviously, this list can go on and on and should.
HPM doesn't directly deal with issues of who should be collecting and controlling the data and information. But lately, for a number of reasons, this is becoming more and more centralized. Some of the advantages of centralizing these sorts of operations are
Then HPM goes through some fairly common jargon relating to databases. The high points , as I see them, being
Most of these notions and jargon words will be somewhat abstract for a while. But we will have plenty of examples that are intended to help you give much more meaning to the words.
I am leaving out the discussion of traditional file processing systems for a number of reasons.