Question

Part I: Complete Your Original Response to the Main Topic

You are a software developer for a Retail Point of Sale System Company. A client has made a request to upgrade the current system from command line interface to a graphic user interface. The client concerns on an effect to the current system with the change. The client does not want to lose any current data on the system. Provide recommendations and the change plan including the below requirements to the customer.

Requirements:

• Create a requirement plan (what need to be done to support this upgrade)
• Create a development plan (how to implement this upgrade with programming details explanation including technical details on this document)
• Create testing plan (how to ensure that the new upgrade works without affecting current system and no data lost.)

Posting your recommendations and the change plan

Once you have completed your recommendations and plan. Post it in the discussion forum by clicking the Reply link below.

• In the first line of your post, your should add your plan title and name.
• Your posting must include recommendations, a requirement plan, a development plan, and a testing plan.  

Part II: Comment on Your Colleague's Discussions

Respond to at least one of your peers by the deadline for this assignment.

• Read your colleagues’ postings, and choose one of them to comment on.
• Please be respectful and constructive. Consider the following comments:
  • Have you considered using an automated testing tool?
  • Have you included the Java Interface in your development plan?
  • Could you include an abstract class to use in your development plan?
  • Have you considered including a UML diagram?
  • Could you include JUnit to help with the testing plan?
• Review the Expectations for Discussion Board Posts in the Syllabus for the exact requirements for a well-composed and articulated post.

Answer 1

CLI is a way of interacting with a computer program where the user issues commands to the program in the form of successive lines of text (command lines). And GUI is a type of interface that allows users to interact with electronic devices through graphical icons and visual indicators.

Being a software developer, if a request arrives to upgrade the system from CLI to GUI. Then, there are a number of important points which should be kept in mind and have to follow a plan as discussed below:

• First step that should be done is the feasibility study. We need to check whether the upgrade which is demanded by the client is possible or not? There can be a number of constraints in the way like resource constraints, budgetary constraints, or technical constraints. So being a software developer, we need to check each one of them before proceeding.
• Check System Requirements: Think about not only system requirements, but also your current OS configuration and any installed software you use.
• Check the specifications: Specifications should be checked first, the only true requirement for upgrading is to ensure your system meets the minimum system requirements for running GUI
• Detect and Resolve the existing problems before upgrade. if any. Ensure that your system is not experiencing any major problems right now.
• Run basic maintenance routines
• Backup: To ensure the data security, to prevent data loss and to avoid expensive recovery there is nothing that can replace backup. So, Data backup is the Golden rule no. 1. Before upgrading any system is to make sure that your critical, personal, irreplaceable data is safely backed up in its entirety to an external device, like a USB disk, DVD, external hard drive etc. Don't even try to attempt to upgrade before doing this most important step. You can also think of creating RAID (Redundant array of independent disks) or creating system clone.
• Then start upgrade. Always upgrade the remote secondary replica nodes first, then local secondary replica nodes next, and the primary replica node last.