Function Point Estimating

5 minutes 5 Questions

The Function Point estimating technique is a method of measuring the functionality delivered by the project. Function points are a unit measure for software much like an hour is to measuring time. They quantify software functionality provided to the user based primarily on the logical view. What sets apart this estimation technique is its standard rules and guidelines, which make it an increasingly credible, reliable and efficient in measurement and analysis.

Guide: Function Point Estimating

Importance:
Function Point Estimating, also referred to as FPE, is crucial because it offers a standardized technique for predicting the cost, resources, and timelines applicable to software development projects. FPE is beneficial as it's a model independent of technology, language, and methodology.

Concept:
The Function Point Estimating is a method for measuring the size of an information system based on what the system is intended to do, rather than how it is implemented. The system's functionality is discerned from the requirements and then quantified.

How it Works:
FPE associates numerical weights to five components of any system which include: inputs, outputs, user interactions, data interfaces, and data files. These are then adjusted for overall system complexity to deliver a singular measure of functionality.

Exam Tips: Answering Questions on Function Point Estimating
In the exam, when faced with a question on Function Point Estimating, here are some tips:

Understand your Fundamentals: Review and grasp the basic principles of Function Point Estimating, before attempting to answer the question.
Breaking Down the Question: Make sure you understand what the question is asking, break it down if required.
Use Appropriate Terminology: For accuracy, be sure to use the correct function point terminology when developing your answer.
Clarify Assumptions: If you’re unsure about any aspect of the question, clarify your assumptions within your response.

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Question 1

Your software project is divided into three modules with function points of 100, 150, and 200 respectively. If you have completed 60% of total function points, what would be the remaining function points to be implemented?

220 function points 180 function points 150 function points 200 function points

Correct Answer: 180 function points

To solve this question, we first sum up all the function points, which equals 100+150+200, resulting in 450 function points. Now, we know that 60% of this total, which is 270, has been completed. The remainder of total function points yet to be implemented can be calculated by subtracting the completed function points from the total, leaving us with 450-270, equaling 180 function points. Hence, the correct answer is '180 function points'. The other answers are wrong because they do not accurately represent the remainder of function points left after 60% of the total has been completed.

Question 2

You are working on a system with 256 function points. If the system is 80% completed, calculate the remaining function points that need to be implemented.

51.2 function points 40.8 function points 60.4 function points 38.6 function points

Correct Answer: 51.2 function points

To find the remaining function points that need to be implemented, the total function points should be multiplied by the percentage of the system that has not yet been completed. Since the system is 80% completed, it means that 20% is not yet done. Therefore, we calculate 20% of 256 function points, getting 51.2 function points. This means '51.2 function points' is the correct answer. The other answers, '40.8 function points', '60.4 function points', and '38.6 function points', are incorrect because they do not accurately represent the calculation of 20% multiplied by the 256 total function points.

Question 3

As the lead of a software development team, you've been given a project that consists of 150 function points. However, due to certain quality and novelty requirements, an adjustment factor of 1.4 is added. What will the adjusted function point count of your project be?

190 210 150 300

Correct Answer: 210

First, it is mentioned in the question that the project consists of 150 function points. Next, due to certain quality and novelty requirements, an adjustment factor of 1.4 is added. The adjusted function point count of the project would therefore be 150 function points multiplied by the adjustment factor of 1.4, which equals 210 function points. Hence, the correct answer is 210 function points. The answer of 150 function points is incorrect because it does not take the adjustment factor into account. The answer of 190 is incorrect because it is less than the correct calculation result. The answer of 300 is incorrect because it is more than the correct calculation result.

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