After launching, the users of Cross-Ride application grows and database size grows exponentially. As a consequence, this API of top ride sharing users /api/top-rides becomes very slow. Keeping in mind the current structure of database tables, propose three different possible solutions/improvements to increase the response time of this API? 

*I need by 12am tonight.

Annotated Bibliography (Topic: Defense in depth in the context of protecting National Infrastructure)

This paper should be an annotated bibliography, specifically focusing on the “Depth” topic (i.e. Defense in Depth) in the context of protecting National Infrastructure.

Paper must be minimum of 1500 words and with correct APA format, and will need to include at least seven (7) resources (articles) related to Discretion with their respective short summaries for each article. ( 200 words summary for each article (200 * 7= 1400)

ALL of which must:

1) Be current. Published within the last few years.

2) Be peer-reviewed.

3) Relate directly to Defense in depth in the context of protecting National Infrastructure.

What is an Annotated Bibliography?

An Annotated Bibliography is a working list of references—books, journal article, Online documents, websites, etc. that you will use for an essay, research paper, or project. However, each reference citation is followed by a short summative and/or evaluative paragraph, which is called an annotation. 

Here are a few URLs with additional information: (I strongly suggest that you look at these. Closely.)

https://sites.umuc.edu/library/libhow/bibliography_apa.cfm

https://www.bethel.edu/library/research/apa-annobib-sixth.pdf\

http://libguides.enc.edu/writing_basics/annotatedbib/apa    <<<< Check out the “Rules! rules! rules!” section

http://guides.library.cornell.edu/annotatedbibliography

https://owl.english.purdue.edu/owl/resource/614/03/

Each Question 1 page answer in 11 point font size.APA format,No plagiarism.

Question 1. (8 points). The title of this course is IT Acquisition Management. Explain in YOUR own words what that means? Why is it important? How is IT acquisition different from commodity purchases? Finally, what have you learned this semester about IT Acquisition Management that has impacted you the most?

Question 2. (14 points). State the main purpose of the following:

1. GANTT chart,
2. Flow chart, and
3. Work Breakdown Structure (WBS)

Identify the similarities and differences among the three. In addition, present a pictorial diagram of each and their differences. Note: You are free to use whichever tool you are familiar with—MS Project, SmartDraw, PowerPoint, Excel, etc, to create the images or you can obtain them from the Internet.

Question 3. (8 points).  Why do you think  doing a Risk Analysis  on the chosen alternatives for the performance problem substantially improve for acquisition of IT services 

Question 4. (14 points). A pharmaceutical company is preparing a request for proposal to acquire IT services to improve its pharmaceutical sales system. It plans to implement a tablet software application (“app”) for mobile access to view and update client accounts, update inventories, create orders, communicate with clients and the home office, and view personal work schedules. It plans to prepare a performance work statement (PWS) for the development of the app to include in the RFP.

Your Question/Task: Prepare the required outcomes and their performance standards, monitoring methods, and incentives/disincentives that the pharmaceutical company might use in its PWS for the request for proposal. Your required outcomes and associated information should apply to only the first and second desired app functions, view and update client accounts and update inventories. Your required outcomes and related information should reflect the best practices for performance work statements and each should include performance standards, monitoring methods, and incentives/disincentives, as required by IT Economics Corporation Template 12 (T12-PBWS.pdf )

Note: This is not a test of your knowledge of a pharmaceutical company’s sales activities but of your ability to prepare a performance work statement. You can make reasonable assumptions regarding a pharmaceutical company’s sales activities if necessary. The app functions in the question are comparable to those used by many organizations outside of the pharmaceutical field.

Question 5. (14 points). Federal Acquisition Regulations (FAR) require that federal agencies use performance-based contracting to the maximum extent possible for service contracts, including contracts for the acquisition of IT services. Performance-based contracts rely on a performance work statements (PWS). However, a prominent organization of former federal government acquisition officials argues that the PWS works well with short-term, relatively simple service contracts, but “it is unrealistic to ask agencies to specify services at time of contract award in clear, specific, objective, and measurable terms when future needs are not fully known or understood, requirements and priorities are expected to change during performance, and the circumstances and conditions of performance are not reliably foreseeable.”

Your Question/Task: If you agree with this group’s position, explain why you believe the group is correct in contending that the PWS is not suitable for long-term, complex IT service contracts. If you disagree with this group’s position, explain why you believe the group is not correct and why a PWS is suitable for long-term, complex IT service contracts.

Question 6. (14 points). Template 13, by IT Economics Corporation (T13-Evaluating Sources.pdf ), is an example of a matrix used for summarizing the results of evaluating proposals received from IT services contractors. The template uses “adjectival” rating codes and brief statements to summarize the evaluation results of each proposal from IT services contractors.

Your Question: What are the principal risks associated with using such a matrix and what do you recommend to avoid, mitigate, or transfer each principal risk that you identify?

Question 7. (14 points). An organization is planning an IT acquisition strategy for a large and complex project. It plans to outsource part of the solution implementation to an IT services contractor. Prior to preparing a request for proposals, it must decide which solution implementation activities should be performed by in-house staff and which should be performed by the IT service contractor.

Your Question/Task: What guidelines would you recommend for making the decisions regarding which solution implementation activities should be performed by in-house staff and which should be performed by the IT service contractor?

Question 8. (14 points). An IT services contractor generally tries to appoint the project manager that is best suited to the customer and the project. In the case described below, the contractor appointed one of its best project managers to manage a project under contract with an important client. Here is the problem that the project manager encountered:

• The Case. An organization awarded a time and materials contract to a qualified IT services contractor to develop software for analyzing large amounts of customer data and establishing tailored reporting of the results for managers of lines of business. The project required 40 full-time analysts, designers, and programmers. Because of the importance of the project to both the customer and the contractor, the contractor assigned a senior project manager who was known for having excellent technical skills and excellent soft skills. After the project was under way for several months, the project manager discovered that two team members had charged time to the project for several three-to five day periods in which they did not work on the project. The customer had no knowledge of this and counted the time in calculating the payments to the contractor.

Your Question/Task: Given the circumstances of this case, what action should the project manager take? Explain the reason(s) for your answer.

  please make sure to read Chapter 6 of your textbook.  

(a) In the use of a categorical variable with n possible values, explain the following:
    1. Why only n – 1 binary variables are necessary
    2. Why using n variables would be problematic
 
(b) Describe how logistic regression can be used as a classifier.

(c) Discuss how the ROC curve can be used to determine an appropriate threshold value for a classifier

(d) If the probability of an event occurring is 0.4, then

    1. What is the odds ratio?
    2. What is the log odds ratio?

Requirements:

– Typed in a word document.

– Please write in APA Style and include at least Five (5) reputable sources.

– The complete paper should be between 800-to-1000-words. 

A digital forensics professional must know basic IT skills, understand computer architecture and networking, and have analytical and investigative skills, as well as strong attention to detail. Why do think all of these skills are necessary? Please explain.