Modern Database Management (12th Edition)
12th Edition
ISBN: 9780133544619
Author: Jeffrey A. Hoffer, Ramesh Venkataraman, Heikki Topi
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Textbook Question
Chapter 1, Problem 1.38PAE
Consider the project data model shown in Figure 1-16
- Create a textual description of the diagrammatic representation shown in the figure. Ensure that the description captures the rules/constraints conveyed by the model.
- In arriving at the requirements document, what aspect of the diagram did you find was the most difficult to describe? Which parts of the requirements do you still consider to be a little ambiguous? In your opinion, what is the underlying reason for this ambiguity?
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
I'm designing an ER diagram for a project and I have to represent an entity called User, with the attributes: Username, Password and Role.
But the role contains (Supervisor and Farmer)
My question is should role be a multivalue property (attribute) or should it be two separate entities?
Either way, how would it be represented in the ER diagram? (if it was an attribute or two entities)
Design the Entity Relationship Diagram (ERD) showing entities, attributes, primary key and relationship cardinality for the
following scenario.
Any employee works for only a department and under supervision of a manager (where manager is also an employee).
Employee's address, city code & city name also has been recorded. Every employee may work for multiple project, but an
employee may be on vacation and not assigned to any projects. Working hour may be different for an employee for
different projects. Projects are broken into tasks; A task is created for one project and assigned to one department.
Requisitions are made for projects; Each requisition could ask for any number of items; Items could be: equipment item
or materials item and are coded in a similar way; Each requisition is for one project and is made to one supplier.
The important data fields are employee_id, employee_name ,employee_address, employee_email, department_id,
department_name, location, city_code, city_name,…
In this phase each student will select a real life problem that can be solved using database systems. Once you pick your project, start by writing a small description no more than 1 page to explain the project description. In this phase a project description is required only.
In this 2ND phase all you have to complete is preparing the UML diagram for the project that you have selected in Phase I
Chapter 1 Solutions
Modern Database Management (12th Edition)
Ch. 1 - Prob. 1.1RQCh. 1 - Match the following terms and definitions:...Ch. 1 - Prob. 1.3RQCh. 1 - Prob. 1.4RQCh. 1 - Prob. 1.5RQCh. 1 - How are relationships between tables expressed in...Ch. 1 - What does the term data independence mean, and why...Ch. 1 - Prob. 1.8RQCh. 1 - Prob. 1.9RQCh. 1 - Prob. 1.10RQ
Ch. 1 - Prob. 1.11RQCh. 1 - Prob. 1.12RQCh. 1 - Prob. 1.13RQCh. 1 - Prob. 1.14RQCh. 1 - Prob. 1.15RQCh. 1 - Prob. 1.16RQCh. 1 - Prob. 1.17RQCh. 1 - Prob. 1.18RQCh. 1 - Prob. 1.19RQCh. 1 - Prob. 1.20PAECh. 1 - Prob. 1.21PAECh. 1 - Prob. 1.22PAECh. 1 - Prob. 1.23PAECh. 1 - Prob. 1.24PAECh. 1 - Prob. 1.25PAECh. 1 - Great Lakes Insurance would like to implement a...Ch. 1 - Prob. 1.27PAECh. 1 - Prob. 1.28PAECh. 1 - Prob. 1.29PAECh. 1 - Prob. 1.30PAECh. 1 - Prob. 1.31PAECh. 1 - Prob. 1.32PAECh. 1 - Prob. 1.33PAECh. 1 - Prob. 1.34PAECh. 1 - Prob. 1.35PAECh. 1 - Prob. 1.36PAECh. 1 - Prob. 1.37PAECh. 1 - Consider the project data model shown in Figure...Ch. 1 - Prob. 1.39PAECh. 1 - Prob. 1.40PAECh. 1 - Helen Jarvis wants to determine the most important...Ch. 1 - In this chapter, we described four important data...
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, computer-science and related others by exploring similar questions and additional content below.Similar questions
- Please elaborate on the requirement engineering processes of elicitation, specification, and validation. Test out a few different approaches to collecting criteria.arrow_forwardQ. Write the below image in our own hand by clear writting. and also explain the diagram.arrow_forwardDesign a system to track advance payments made to employees. Use uml diagrams and design patterns in this system. The design steps will be as follows. Step 1 - Prepare an analysis document on the given topic. Step 2 - Create a Use case diagram for your requirement that contains at least 3 actor, 10 use case and use all relationship type Step 3 - Create an activity diagram for requirement Step 4 - Create a class diagram for all requirement that contains at least 10 class, necessary relations and types. Add the important attributes of the classes to the model. Step 5 - Use three design patterns, at least one creation, one structural, and one behavioral pattern, integrated into your classroom design. Step 6 - Code one of the design patterns you use with java. Note: The design should be homogenate. Excessive usage of any property type, object type, or function type is not suitable. For example, for creating 10 relations between classes, the number of relation types for aggregation,…arrow_forward
- When you are constructing the framework, it is important to keep possible roadblocks in mind and to be specific about the kind of issues that you anticipate facing. So, anything. What, precisely, is the significance of this?arrow_forwardDraw ER diagram for the following upload the diagram ?? A laboratory has several chemists who work on one or more projects. Chemists also may use certain kinds of equip- ment on each project. Attributes of CHEMIST include Em- ployee_ID (identifier), Name, and Phone_No. Attributes of PROJECT include Project ID (identifier) and Start_Date. Attributes of EQUIPMENT include Serial_No and Cost. The organization wishes to record Assign_Date-that is, the date when a given equipment item was assigned to a particular chemist working on a specified project. A. chemist must be assigned to at least one project and one equipment item. A given equipment item need not be as- signed, and a given project need not be assigned either a chemist or an equipment item. Provide good definitions for all of the relationships in this situation.arrow_forwardcan you help me with my assignment?arrow_forward
- Define possible issues when you are developing the framework, and then take into account potential roadblocks as you are putting your answers into action. No matter what. Is there any significance to this at all?arrow_forwardDesign a fingerprint system, the appropriate solution document will include: 1- Describe the problem and its scope. 2- Scope Analysis 3- Your system requirements 4- System use cases 5- Class diagram (including attributes and methods) 6- Relationships between class graphs 7- Object Diagramsarrow_forwardSketch ER Diagramarrow_forward
- Please Design an Entity Diagram for the following Fictional Scenario using entities: SEASON, LEAGUE, DIVISION, CLUB and TEAM. Also, please show the relationship type and datatype. Thank You!arrow_forwardas a continuation of the problem in the screenshot Create an activity diagram for requirementarrow_forwardThe ABC method (see below) specifies the development process but it does not prescribe any set of systems modelling techniques. Assuming that you are required to use the Unified Modelling Language (UML) techniques, decide which techniques you would use in different stages of the method. Briefly justify your decisions.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Principles of Information Systems (MindTap Course...Computer ScienceISBN:9781285867168Author:Ralph Stair, George ReynoldsPublisher:Cengage LearningFundamentals of Information SystemsComputer ScienceISBN:9781305082168Author:Ralph Stair, George ReynoldsPublisher:Cengage LearningDatabase Systems: Design, Implementation, & Manag...Computer ScienceISBN:9781305627482Author:Carlos Coronel, Steven MorrisPublisher:Cengage Learning
- Database Systems: Design, Implementation, & Manag...Computer ScienceISBN:9781285196145Author:Steven, Steven Morris, Carlos Coronel, Carlos, Coronel, Carlos; Morris, Carlos Coronel and Steven Morris, Carlos Coronel; Steven Morris, Steven Morris; Carlos CoronelPublisher:Cengage Learning
Principles of Information Systems (MindTap Course...
Computer Science
ISBN:9781285867168
Author:Ralph Stair, George Reynolds
Publisher:Cengage Learning
Fundamentals of Information Systems
Computer Science
ISBN:9781305082168
Author:Ralph Stair, George Reynolds
Publisher:Cengage Learning
Database Systems: Design, Implementation, & Manag...
Computer Science
ISBN:9781305627482
Author:Carlos Coronel, Steven Morris
Publisher:Cengage Learning
Database Systems: Design, Implementation, & Manag...
Computer Science
ISBN:9781285196145
Author:Steven, Steven Morris, Carlos Coronel, Carlos, Coronel, Carlos; Morris, Carlos Coronel and Steven Morris, Carlos Coronel; Steven Morris, Steven Morris; Carlos Coronel
Publisher:Cengage Learning
Enhanced Entity Relationship Model; Author: Data Science Center;https://www.youtube.com/watch?v=ocQUtXPumdQ;License: Standard YouTube License, CC-BY