CTTS CASE STUDY MILESTONE 5 SOLUTION

The primary keys are based on how the user uniquely identifies each entity. But a long text field such as the client name would make a poor primary key for Client, consuming extra storage space, slowing down database operations, and probably requiring extra typing. Vendor would be a parent table to PurchaseOrder, contributing the VendorID in a non-identifying relationship. You can add this document to your saved list Sign in Available only to authorized users. Make sure students specify primary keys that uniquely identify the entities as well as use proper names for the keys.

A system-generated large integer numeric value unique to each client. For complaints, use another form. Clean Technology Investment Programs. Specify all data types your instructor will specify the target database or allowable set of data types. A system-generated large integer numeric value unique to each work record.

A computer, printer, or other piece of technology equipment that is in use. Ethnic groups in the Middle East. Each Configuration is associated with a particular Client.

ctts case study milestone 5 solution

Whether or not they identify the optional entities solugion depend on stuxy they interpret the user requirements and on their experience level with database normalization.

This would soluiton be a system-generated number. A date field representing the date a component was purchased. An EquipNum is a number that could be generated by the system and stays unchanged forever. A character alphanumeric description of the information stored in a software configuration record.

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Specify all primary and foreign keys. None of the forms hint at a ClientID. Primary keys are shown at the top of the list of attributes and marked with PK. A character alphanumeric description of the piece of equipment, if any, for a software configuration record. A character alphanumeric field consisting of last name of the client contact person.

Case Study CTTS – Milestone 05 Data Model

Specify all data types your instructor will specify the target database or allowable set of data types. Prepared by Gary B. This diagram was created in Microsoft Visio. Date field consisting of the date mileshone component was removed from a piece of equipment.

Case Study CTTS – Milestone 05 Data Model

Vendor would be a parent table to PurchaseOrder, contributing the VendorID in a non-identifying relationship. A character alphanumeric identifier of the model number of the component. The Equipment entity has EquipNum as the primary soution.

ctts case study milestone 5 solution

Family Vacation Rentals Machine Name i. A piece of Equipment is made up of one or more EquipmentComponents that either have in the past or are now installed. Suggest us how to improve StudyLib For complaints, use another form. Logon Multiple Values of Information i. A character description milestlne the component.

  IWMS CASE STUDY

ctts case study milestone 5 solution

Foreign keys are marked with FK and a number. Add to collection s Add to saved.

Case Study CTTS – Milestone 04 Data Modeling Solution_图文_百度文库

Specify which attributes are required not nullable. Each piece of Equipment is owned by a particular Client. As a number it would also consume less disk space as a foreign key in related tables and would sokution for faster joins. Data Soltion Normalization Page: A classification of EquipmentComponent. A Client submits one or more ServiceRequests, which may related to a piece of Equipment.

A date field holding the date a service request was resolved.

A large alphanumeric field describing the work done on a work record. Prepared by Gary B. A character alphanumeric classification of the type cfts component.