The contact service uses in-memory data structures to support storing contacts (no database required). In addition, there is no user interface for this milestone. You will verify the contact service through JUnit tests. The contact service contains a contact object along with the contact service. The requirements are outlined below. Contact Service Requirements The contact service shall be able to add contacts with a unique ID. The contact service shall be able to delete contacts per contact ID. The contact service shall be able to update contact fields per contact ID. The following fields are updatable: firstName lastName Number Address

Q: Open your text editor and create a new document named model.php model.php will connect to a database…

A: <?php $request = $_REQUEST; $email = $request['id'];  $first_name = $request['name'];  $last_name…

Q: Generate use cases based on the folowing scenario. Chillax Video Store (CVS) runs a chain of video…

A: Based on the following scenario  use case diagram is given below :

Q: A trading company wish to maintain a database of its staff, the database is Include name, age,…

A: Introduction to trading company Classes and Interfaces in the javaeetutorial.trading.rar.api…

Q: Which statement(s) are false about Map?*           It cannot contain duplicate keys and each key can…

A: Map is a data structure which contains key value pairs and also it remembers the original order of…

Q: Create a Sequence model (Application layer) for the following “Borrow Books” Use case for Students…

A:

Q: Assume you need to store book data in a structured manner. Either more books should be added, or…

A: The answer is given in the below step

Q: A software developer is developing a student records module that stores students' college details.…

A: Task : Given the snippet for the c code using structure. The task is to find the API interface.…

Q: For the given design,  Which of the following is NOT true about the design? Select one: a. It…

A: Sequence diagrams describe interactions among classes in terms of an exchange of messages over time.

Q: Write a PHP script that obtains a URL and its description from a user and stores the infor- mation…

A: STEP 1 - Creating a SQL script:- STEP 2 - Connecting to MySQL:- STEP 3 - Creating an HTML form:-

Q: The following needs to coded in Java Your job is to code the application and provide unit tests to…

A: Java Language : Java is a class-based, object-oriented programming language that is designed to have…

Q: Which of the following statements are true with respect to the UML diagram shown below? A B a. If an…

A: We need to find the correct answer between 4 given options for the given image. The arrow used in…

Q: Company X is a new business entity in town and wants to ensure data Integrity in their database, as…

A: “Dаtа  integrity”  refers  tо  the  ассurасy  аnd  соnsistenсy  оf  dаtа  stоred  in  а  dаtаbаse,…

Q: INTRODUCTION: In this assignment, you will demonstrate using a database with a menu based program…

A: Solution ::  Let's see first what is database called ?  Answer ::  A (computer file full of…

Q: Develop a CRUD class that, when instantiated, provides the following functionality: A Create method…

A: Hey there, I will be writing the required solution(code) based on the above stated question. First,…

Q: In ASP.NET MVC Core, a model is?  1. A regular C# class that stores the data for an app 2. A C#…

A: Below is the answer with explanation:

Q: In the arc implementation of the super- and sub-type entities, which one of the following is false?…

A: Given: In the The primary key of each table for each category of object will be its own UID, if one…

Q: 4) a. Load a database application b. Create a database labelled as MOVIE_LIBRARY in the created…

A: In questions with multiple subparts, we are needed to solve only first 3.

Q: we are going to design a system to Manage loans from the local public library For this we will need…

A: SINGLE CLASS DIAGRAM SHOWING RELATION BETWEEN THE ENTITIES. SET OF INDIVIDUAL CLASS DIAGRAM. Book…

Q: a. Load a database application…

A: Answer : given data,  MovieID Movie Name Date Released Movie Category Quantity Delivered…

Q: Follow the lecture note in Week 4, create a new Java class (right click to app -> New ->Java class)…

A: CREATE TABLE [IF NOT EXISTS] DataBaseManager.StudentInfo(StudentID INTEGER PRIMARY KEY, FirstName…

Q: Customers are charged a simple interest per annum on any approved loan. Assuming every loan applied…

A: Note as per our guidelines we are supposed to answer?️ only one question. Kindly repost other…

Q: Write a PHP application that creates a class that allows connection to a specific MySQL database,…

A: Here we have given code for php application that creates a class that allows connection to a…

Q: The dataset has two features: sepal length, sepal width. The third column is for species, which…

A: KNN algorithmOne of the simplest machine learning algorithms is the KNN or k-nearest neighbors…

Q: Generate a project file with the correct dependencies  Configure the application properties file for…

A: I have an example you may understand

Q: Clayton Elementary School is converting the wish list request form below into online form because of…

A: Diagrams in the UML: Graphical presentation of a set of elements, rendered as a connected graph of…

Q: ou want to create a software to aid the FBI in conducting criminal investigations. When…

A: We can use a graph data structure here, where vertices of graph can represent entities like…

Q: Given the data in this table, which of the following functional dependencies hold? FoodLog Food Туре…

A: Given the data in the table, which of the following functional dependencies hold? Given a FoodLog…

Q: Assume vector VDB represents a student database. The structure of the Student records is given…

A: The text of the code with embedded self explanatory comments is given below: #include…

Q: Salesforce Case Study 4: Suppose that in you Salesforce Developer Org there is an custom object…

A: Apex trigger: Apex triggers allow you to perform custom actions on Salesforce records before or…

Q: Implement, using Java, an application to add user's transactions into a binary file, and then…

A: The answer provided below has been developed in a clear step by step manner.

Q: A method that is common to both shared and unique pointers is get. What does this method do? Returns…

A: According to the information given:- We have to choose the correct option to satisfy the statement,.

Q: Assignment 1 University Library System In this assignment you are going to implement your own…

A: Actually, given information Assignment 1 University Library SystemIn this assignment you are going…

Q: For this assignment, you will continue to use variables, functions, and control structures to…

A: Solution:    The answer for above question is given below.

Q: tion 12 er ared Match the terms in column A to the terms in column B: There is one extra phrase in…

A: Explanation : these words are matched with their definition

Q: that we are going to design a system to Manage loans from the local public library For this we will…

A: Actually, given information: The data for a Book will contain at least the following:AuthorTitleISBN…

Q: The following below displays the details of driving class, client, and vehicle. Class (ClassID,…

A: Since there are the existing insert,update delete anomalies as explained above , the database is…

Q: 1. PHP Programming for DB connection a. To connect to a database with a php program, given the…

A: The answer for the above given question is given below:

Q: A private kindergarten, Happy Learning, wants to build a database to manage their operations. You…

A: there are eight entities in a class. the primary key of each class is shown in a table foreign key…

Q: Build an application for a car rental company. It should offer the following features: • Maintain a…

A: Build an application for a car rental company. It should offer the following features:• Maintain a…

Q: Mr. Alice is trying to modify the Created Date Field in Salesforce. but he is getting null pointer…

A: Given: -

Q: I am having an issue creating this function with a trigger using postgreSQL (plpgsql). Could someone…

A: Below is the required answer with explanation:

Q: Given the data in this table, which of the following functional dependencies hold? FoodLog Food Түре…

A: The functional dependencies hold by the given table FoodLog are 1. FirstName,LastName -> Eaten 2.…

Q: Customers are charged a simple interest per annum on any approved loan. Assuming every loan applied…

A: The complete code is given below . Please like , thank you

Q: The resulting list for each object consists of ordered pairs , which define all domains with a…

A: The resulting list for each object consists of ordered pairs <domain, access-rigth> , which…

Q: Let's assume that you have been employed by a University to design Library Management System for the…

A:

Q: ou need to use Java to connect with the mysql and create a simple mysql system. Databases "POS"…

A: Below is the required java program. Program Approach:   Import necessary packages to get the SQL…

Q: base class: str_databasename, int_databaseid, lst_tablenames and int_count. str_databasename will…

A: Q.   Create four variables for the database class: str_databasename, int_databaseid,…

Q: Develop the Java program for the continuous evaluation (CE) mark-sheet portal as mentioned below:…

A: The program is written in java.

Q: Create a controller class, "PrintSequence" that will generate a view according to the descriptions…

A: Given answer below

Types of database architectures

A Database Architecture represents the Database Management System’s (DBMS) design (schema). The DBMS architecture makes it easy to understand the components involved in the database system and their relations. The DBMS architecture may vary based on the system on which it runs. Some systems contain both client and server machines whereas some run only on a server machine. Based on the architecture, the system can be classified as centralized, decentralized, or hierarchical.