Entity supertype - Study guides, Class notes & Summaries

IS 410 Exam 1 Review Rated 100% Correct!! Data stored representations of meaningful objects and events Information data processed to increase knowledge in the person using the data Database organized collection of logically related data Metadata data that describes the properties and context of data (data about data) Database Management System A software system that is used to create, maintain, and provide controlled access to user databases External schema The view of end users C...

entity supertype - -contains common characteristics -entity subtypes - -each contain their own unique characteristics -example supertype - -EMPLOYEE is the supertype of PILOT -example subtypes - -PILOT is a subtype of EMPLOYEE -inheritance - -enables an entity subtype to inherit the attributes and relationships of the supertype (primary key) -subtype discriminator - -is the attribute in the supertype entity that determines to which subtype the supertype occurrence is related -D...

INF3703 STUDY NOTES. An informaton system is composed of people, hardware, software, databases, applicatons and procedures  Systems analysis is the process that establishes the need for and the scope of an informaton system  Systems development – is the process of creatng an informaton system  The performance of an information system depends on DB design and implementaton; app design and implementation; and administrative procedures  DB Design objectves – create complete, ...

Analysis and Design of Information Systems Preface v 1. Introduction 1 What Is, Is................................................................................................. 1 Just What Is a Complex Project? ............................................................. 3 The Tiers of Software Development........................................................ 6 User Interface............................................................................................ 6 Tools............

What does the abbreviation "PSR" stand? Product, service, resource Industries CPQ supports which of these business activities? The configuration, pricing, and quotation of products. True or False: Context awareness is an important feature of Industries CPQ. True The design of the Cart is based on... Cards, Layouts, and Templates True or False: Pricing in Industries CPQ is designed as a component-based system with reusable items to allow seamless transition to new pricing structures. T...

1) Which of the following is a generic entity type that has a relationship with one or more subtypes? A) Megatype B) Supertype C) Subgroup D) Class Answer: B Diff: 1 Page Ref: 113 Topic: Representing Supertypes and Subtypes AACSB: Use of Information Technology 2) Given the following entities, which of the choices below would be the most complicated? Automobile: VIN, EngineSize, NumberOfDoors, NumberOfPassengers, FuelType, Transmission SUV: VIN, EngineSize, NumberOfPassengers, NoWheel...

Question 1 Selected Answer: True Correct Answer: False Cloud developers create applications and host them on SaaS provider sites, which provide an operating environment and hardware. Question 2 Selected Answer: Correct Answer: C. SaaS _____________ a complete software application with a user interface. C. SaaS 0 out of 0.5 points 0.5 out of 0.5 pointsCorrect Answer: C. SaaS Question 3 Selected Answer: a. Correct Answer: a. Response Feedback: Which statement would you use to mi...

Answers to Review Questions 1. Name and discuss the different levels of data abstraction as defined by ANSI/SPARC. Conceptual Located at the abstraction apex, the conceptual model represents a global view of the data. It forms the basis of the conceptual schema, which provides a relatively easily understood bird's-eye view of the data environment. Since the conceptual model focuses on the main data objects and avoids detail, it exhibits both software and hardware independence. The most ...

INF2603 ASSIGNMENT 2 SEMESTER 2. INF2603 - Databases I. What is a subtype discriminator? Given an example of its use. (3) A subtype discriminator is the attribute in the supertype entity that is used to determine to which entity subtype the supertype occurrence is related. For any given supertype occurrence, the value of the subtype discriminator will determine which subtype the supertype occurrence is related to. For example, an EMPLOYEE supertype may include the EMP_TYPE value "P" to ind...

CIS 321 Final Exam A+ GRADED Question 1.1. (TCO 2) What is feasibility? List and briefly discuss three kinds of feasibility. (Points : 24) Question 2.2. (TCO 4) What are some of the criteria deemed to be critical in defining system requirements? (Points : 22) Question 3.3. (TCO 6) What does a physical DFD represent? How does the physical data flow line differ from the logical data flow line? Give an example. (Points : 22) Quest...