But I heard Jeff say that “often” the identifier is a unique serial number. Each piece of Equipment is owned by a particular Client. Add to collection s Add to saved. A character description of the component. I think you have received copies of the use case glossary, diagram, and narratives. Specify all primary and foreign keys.
Add this document to saved. That leaves the service requests. Vendor would be a parent table to PurchaseOrder, contributing the VendorID in a non-identifying relationship. Each piece of Equipment is owned by a particular Client. The primary keys are based on how the user uniquely identifies each entity.
Case Study CTTS – Milestone 04 Data Modeling
Suggest us how to improve StudyLib For complaints, use another form. Solhtion by Gary B. All of the cardinalities of the major entities can be determined from the interview or the forms.
This system is about client service requests and client equipment and client configurations. However, Jeff Summers states that the computer name is sometimes changed.
Your e-mail Input it if you want to receive answer. Subject to interpretation, this diagram is in third normal form, which is the bulk of the assignment for Milestone 5. Suggest us how to improve StudyLib For complaints, use another form. Where do you stop?
A date field representing the date a component was purchased. From a component standpoint, I just need to see a list of all components that have ever been in the PC, when those components were added, and when they were removed. Specify milestlne attributes are required not nullable.
What about cases where it’s just a model number? If you will be doing Milestone 5 as a separate assignment, you may want to withhold this solution. Can’t you just view all that information on the router once you login? They are all companies with company names. The identifier is printed just above or below the barcode symbol, so miestone can actually see what it is. The meeting room at Coastline Systems Consulting.
Sometimes they change them. An extra second or two to scan the barcode. If it deals with a particular machine, we need that, too. Today, we may need a column for mouse as we are getting all kinds of specialty mice and other pointing devices on cttd market.
Case study CTTS milestone 05 data model normalization
Specify all data types your instructor will specify the target database or allowable set of data types. That leaves the service requests. We want to keep adding milestond the list with an installed date and a removed date. Finally, we refine the keybased data model to include any hierarchies silution attributes, and this model is referred to as the Fully Attributed Data Model. Are these columns all the pieces of information that need to be tracked for each PC?
We just as well have a StartTime field, too. This is just a spreadsheet that we currently use to keep track of equipment in each PC. This is always a whole number. So we don’t want to just write over the information of the old component with the information of the new component.
The primary keys are based on how the user uniquely identifies each entity. A character alphanumeric field identifying the equipment as PC, Printer, Scanner, etc.
Walk me through this, if you would. What I want to accomplish is to get answers on some questions I have concerning the data requirements.