Your Perfect Assignment is Just a Click Away

We Write Custom Academic Papers

100% Original, Plagiarism Free, Customized to your instructions!

How It Works
Order Now
glass
pen
clip
papers
heaphones

Build a prototype of an n-tier system using the Northwind database

Sep 15, 2021 | INFORMATION SYSTEMS | 0 comments

Sep 15, 2021 | INFORMATION SYSTEMS | 0 comments

Build a prototype of an n-tier system using the Northwind database

Assignment Details
The company has asked you to build a prototype of an n-tier system using the Northwind database as an example. The company wants to be able to add, edit, and delete records from the customers, orders, order details, products, categories, and suppliers tables. Your instructor will provide you the online link to the SQL Server database files (MDF and LDF).
Assignment Guidelines
Phase 2 individual project

Create the Data Access tier and Data tier projects:

Create a class library project for the Data tier.
Add a new class library project the project created in Step 1 for the data access tier.
Add a typed DataSet using a new data source that connects to the Northwind sample database.
Select the database objects (customers, orders, order details, products, categories, and suppliers) tables.
Make sure the TableAdapters are       stored in the Data Access tier and the DataSet class is added to the Data       tier.

Make sure that separate tiers are      created for each layer by verifying that separate class libraries were created      and the necessary references to the project were added. 

Unit 3 IP

Add the following to the Phase 2      individual project:

Add a new Windows Communication       Foundation (WCF) service library project to the Phase 2 individual       project to communicate with the Data Access tier.
Add the necessary queries and       methods to the table adapters that will return, add, edit, and delete the       data from the tables specified in Phase 2.
Add references in the Data Service       to the Data tier and Data Access tier projects.
Add methods to the Data Service       class created in Step 1 that will call into the Data Access tier.

Make sure that separate tiers are created      for each layer by verifying that separate class libraries were created and      the necessary references to the project were added.

Using the project you worked on in the Unit 3 IP, finalize the design and functionality of the graphical user interface (presentation tier) and business and data access layers to prepare the Windows form application for deployment to a production server. Test the application by adding, editing, and deleting records in each table.

Add to and perform the following on      the Unit 3 IP:

Add a Visual Basic Windows Form       Application Project to the project created in Unit 3 that will serve as       the Presentation tier (user interface that includes the programming of       business logic into various form controls).
Set the Presentation tier project       to be the Startup project.
Add a reference in the Presentation       tier to the Data tier project.
Add a service reference in the       Presentation tier to the Data Service.
Add the necessary Data Grid       controls and graphical user interface controls to show the data from the       selected tables.
Make the data show up automatically       when the form loads.
Increase the maximum received       message size in the app.config file to support the data.

Be sure to test the functionality of the application.

Order Solution Now

Our Service Charter

1. Professional & Expert Writers: Blackboard Experts only hires the best. Our writers are specially selected and recruited, after which they undergo further training to perfect their skills for specialization purposes. Moreover, our writers are holders of masters and Ph.D. degrees. They have impressive academic records, besides being native English speakers.

2. Top Quality Papers: Our customers are always guaranteed of papers that exceed their expectations. All our writers have +5 years of experience. This implies that all papers are written by individuals who are experts in their fields. In addition, the quality team reviews all the papers before sending them to the customers.

3. Plagiarism-Free Papers: All papers provided by Blackboard Experts are written from scratch. Appropriate referencing and citation of key information are followed. Plagiarism checkers are used by the Quality assurance team and our editors just to double-check that there are no instances of plagiarism.

4. Timely Delivery: Time wasted is equivalent to a failed dedication and commitment. Blackboard Experts is known for timely delivery of any pending customer orders. Customers are well informed of the progress of their papers to ensure they keep track of what the writer is providing before the final draft is sent for grading.

5. Affordable Prices: Our prices are fairly structured to fit in all groups. Any customer willing to place their assignments with us can do so at very affordable prices. In addition, our customers enjoy regular discounts and bonuses.

6. 24/7 Customer Support: At Blackboard Experts, we have put in place a team of experts who answer to all customer inquiries promptly. The best part is the ever-availability of the team. Customers can make inquiries anytime.