PROFESSIONAL PORTFOLIOErrol R. Barratt, Jr. ebarratt@hotmail.com(856) 982-0455

LIBRARY DATA SYSTEM Fully integrated program that enables staff

members to add, update, retrieve and organize book status and membership details crucial to the functionality of a library.

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SOFTWARE DEVELOPMENT LIFE CYCLE Deployed within two interfaces:

Windows Forms Application mode Web Form Application mode

Utilized Sequel-Server 2005 Backend Database.

DESIGN - DATABASE Determined necessary SQL tables with primary and foreign key

constraints to store information and maintain data integrity. Outlined SQL stored procedures to perform data manipulation on

the above tables.

DESIGN – OBJECTS Confirmed required objects and functionalities based on business

model.

DESIGN – CONTROL VALIDATION Validated allowable data input formats within interfaces to ensure

consistency of information.

DESIGN – WINDOWS INTERFACE Laid out windows form application design interface.

DESIGN – WEB INTERFACE Laid out ASP web form application design.

DEVELOPMENT Created each element outlined in the design phase:

SQL tables SQL stored procedures Windows Form Application Website Form Application

Business Entity Objects Needed.

Business Layer Data Access Layer

TESTING Stored procedure scripts

to test tables referential integrity.

Stored procedure scripts to test SP data validation checks and Transactions.

Tested data validation within Window Forms and Web Forms application interfaces.

Tested ASP.NET Roles and Membership features.

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IMPLEMENTATION Created script file

responsible for SQL Tables. Produced second script file

responsible for stored procedures.

Converted Entities, Business Layer, and Data Access Layer source files into assemblies.

Published Web Application and created setup installation for Windows Forms Application.

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DEPLOYMENT Executed script file to create

all SQL Tables on production server.

Ran script files to create all stored procedures on production server.

Installed assemblies into Global Assembly Cache.

PROGRAM SUMMARY Library Data Systems incorporates Windows

Forms, Web Forms, Web Services in an N-Tier architecture.

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