Developing and Implementing Information Systems - IT Assignment Help

Assignment Task

Developing and Implementing Information Systems
 

Design phase – involves describing the desired features and operations of the system including screen layouts, business rules, process diagrams, pseudo code, and other documentation

Primary design activities include:

• Design the IT infrastructure
• Design system models

Design System Models

Modeling – the activity of drawing a graphical representation of a design

Different modeling types include:

• Graphical user interface (GUI) – the interface to an information system
• GUI screen design – the ability to model the information system screens using icons, buttons, menus, and submenus
• Data models – a formal way to express data relationships to a database management system (DBMS)
• Entity relationship diagram (ERD) – a technique for documenting the relationships between entities in a database

Testing phase – involves bringing all the project pieces together into a special testing environment to test for errors, bugs, and interoperability, in order to verify that the system meets all the business requirements defined in the analysis phase
 

Primary testing activities include: 

• Write the test conditions - detailed steps the system must perform along with the expected results of each step
• Perform the system testing

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