SDLC Phases: Management, Control, and Evaluation

Posted on Apr 27, 2024 in Economy

1. Explain the strength and weaknesses of SDLC models?

1. The SDLC adheres to important phases that are essential for developers, such as planning, analysis, design, and implementation. It includes evaluation of present system, information gathering, feasibility study, and request approval. The SDLC phases serve as a programmatic guide to project activity.

Describe the Management and Control of SDLC Phases

The SDLC phases serve as a programmatic guide to project activity and provide a flexible but consistent way to conduct projects to a depth matching the scope of the project. Each of the SDLC phase objectives are described in the scope of the project with a summary of related control objectives for effective management. It is critical for the project manager to establish and monitor control objectives during each SDLC phase while executing projects.

Control objectives help to provide a clear statement of the desired result and should be used throughout the entire SDLC process. Control objectives can be grouped into major categories (domains), and relate to the SDLC phases. 

To manage and control any SDLC initiative, each project will be required to establish a work breakdown structure (WBS) 1 to schedule the work to complete the project. The WBS and all programmatic material should be kept in the “project description” section.

1 WBS is a key project deliverable that organizes the team’s work into manageable sections.

• “I think it’s only fair to write up all the alternatives you’ve considered”, says Lou Ciye, a personnel supervisor for DayGlow Paints. “After all, you’ve been working on this systems thing for a while now, and I think my boss and everyone else would be interested to see what you’ve found out.” You are talking with Lou as you prepare to put together the final systems proposal that your team will be presenting to upper management.  

Explain Why Your Proposal Will Not Contain All the Alternatives That Your Team Has Considered

(The answer not completed and there should be a draw)

• Because there are many constraints: money, hardware, software available, and so on, my proposal will not contain all the alternatives
• Buy computers for all middle managers
• Purchase packaged software to manage inventory
• Modify the existing system through funding new in-house programming efforts

A commercial bakery makes many different products. These products include breads, desserts, especially cakes, and many other baked goods. Ingredients such as flour, spices, and milk are purchased from vendors. Sometimes an ingredient is purchased from a single vendor, and other times an ingredient is purchased from many vendors. The bakery has commercial customers, such as schools and restaurants, that regularly place orders for baked goods. Each baked good has a specialist that oversees the setup of the bakery operation and inspects the finished product.

Draw an Appropriate Entity-Relationship Diagram for the Above Scenario

. You are required to mark different types of keys and attributes clearly.

1. Ayman’s Office Supplies Company recently had a new information system installed to help its managers with inventory. In speaking with the managers, you notice that they seem disgruntled with the system output, which is a series of displays that show current inventory, customer and supplier addresses, and so on. All screens need to be accessed through several special commands and the use of a password. The mangers had several opinions about the system but had no systematic way to evaluate it.
2. Devise a checklist that helps Ayman’s managers to evaluate the utilities of an information system.

The system must be evaluated with live data so the employees have a comparison between the two systems. Since the live data is data that was previously processed the employees will be able to know the desired results and report back on any results not meeting the standard.

A second method can be the Information System Utility Approach. This approach formerly addresses Form, Time, Place, Possession, Actualization, and Goal. Informally, the utilities are What, When, Where, Who, How, and Why.

As the users go through this approach they evaluate if the system contains all six of the utilities and if so it is deemed a success.

This approach is a workable and straightforward framework for evaluating information systems projects and ongoing efforts. It can be usefully employed as a checklist to monitor the progress of systems under development. If any utility is marked “poor” then the system or that module of the system will fail. Anything with a “fair” rating will be partially successful meaning there may be future improvement but the system will work in its current state.

1. What are seven essential items that an analyst should include in performing a website traffic analysis?

1. Know how often your client’s website is visited.
2. Learn details about specific pages on the site.
3. Find out more about the website’s visitors.
4. Discover if visitors can properly fill out the forms you designed.
5. Find out who is referring website visitors to the client’s site.
6. Determine what browsers visitors are using.
7. Find out if the client’s website visitors are interested in advertising

1. Alice in the human resources department at the Cho Manufacturing plant is constantly being asked by employees how much is taken out of their paychecks for insurance, taxes, medical, mandatory retirement, and voluntary retirement. “It takes up to a few hours every day,” says Alice.

She would like the company to have a Web system to interface with health and dental insurance companies to obtain the amount remaining in the employee’s account for the year. She would also like to obtain retirement amounts saved, along with investment results.

• Analyze the scenario by drawing appropriate use case diagram representing the activities of this employee benefits system.
• Write a use case scenario for the use case diagram you constructed for Cho Manufacturing.