You can convert that directly to an effort estimate described in Chapter 19or you can convert it first to a lines of code estimate, and then convert that to an effort estimate. Function type. Month Application Programs. Previous page. Wiley-Interscience, The sum of the weights quantifies the size of information processing and is referred to as the Unadjusted Function points. Cost Estimation. This includes each major logical group of data or control information that enters or leaves the program. Instead, it gives a basis to compare program requirements, design, or final program size independent of chosen design and implementation details. A Function Point calculation is based on empirical evidence from a set of finished projects.

The QSM Function Point Table provides SLOC/FP language gearing factors for a variety of programming languages. One alternative to the LOC measure is function points.

## A brief introduction to function points

. Table lists the conversion factors between function points and lines of code for several popular.

The generic concepts of Function Points Analysis (FPA) were published initially. Klepper derived such a set of adjustment factors through a multiple regression for both data sets, the SLOC/FP published conversion ratios should not be.

Authors: Steve McConnell. External Inquiry. Using these definitions above, the files types in my project can be counted as follows:.

MySQL Cookbook.

Thus, for each algorithm we add two eternal interfaces to the calculation. Ruby Cookbook Cookbooks OReilly.

Conversion/installation in design. Points.

Technical factors for function points: 1. Calculate unjustified function points (UFP) as sum of Obtain an initial estimate based on K LOC (source code.

If you've read my earlier comments about "subjective control knobs," you can probably guess what I think about the Influence Multiplier and its 14 control knobs.

I will include some very preliminary estimates for Java and php to the table. Calculation of the unadjusted function points UFP :.

## Function Point Languages Table QSM SLIMEstimate

The gearing factors in this table were drawn from recently completed function point projects in the QSM database. If you do not see the language you need in the table, you may substitute a gearing factor from a comparable language.

This is not a serious issue.

As with many other quantities you estimate, if you can collect historical data about how function points translate into lines of code in your organization, you will be able to estimate more accurately and probably with narrower ranges than if you use industry-average data. I will include some very preliminary estimates for Java and php to the table.

This includes each major logical group of data or control information that enters or leaves the program.

Unfortunately, this is not always the case.