Evaluating Software Size in Applications and PortfoliosDoes your organization utilize software size metrics to understand productivity, development complexity, and improve project estimation? Show
Do you know what level of output you should expect from your developers or outsourcing providers? Software size grows continuously during development and also release. Software sizing should take place at the end of every year for applications in production because size, much like the physical weight, of an object can be an effective metric to estimate projects, forecast development team productivity, and identify systems that present maintainability challenges. It is important to have a base size measurement as your development team creates new applications or makes software enhancements. A proper size calculation provides a benchmark for evaluating quality, complexity, risk, and productivity as end user needs rapidly evolve. What Are the Benefits of Automated Software Sizing?Automated analysis supplies a fast, accurate software sizing supports the monitoring of development practices and identifying improvement areas. Software sizing offers certain benefits including the ability to:
Automated approaches using defined metrics have allowed for better, more accurate results in less time than other methods. Using Automated Function Point Counting to Assess Software SizeFunction point counting has proven to be one of the most beneficial because it breaks an application down into defined end user functions and uses this count to provide an accurate size benchmark. This calculation also helps organizations evaluate required effort based on the number of completed requirements within an application. Function points are a method for quantifying application functionality based on its logical design. Organizations use this software size estimation technique to identify improvement opportunities in complex, multi-tier environments where application development consists of several projects or technologies. CAST Application Intelligence Platform (AIP) is an automated analysis solution that uses function points to provide a benchmarking measurement for continuous assessment of source code. It can be used to determine software size for multiple languages and is beneficial for mitigating risk in complex infrastructures. AIP is able to deliver accurate, objective software size estimates your organization can use to create higher quality source code, eliminate vulnerabilities, determine complexity, and monitor improvement efforts. Check out this video from David Consulting Group about function points and function point software. CAST offers an automated function point analysis solution to help your organization effectively manage application quality, risk, and complexity. Click here to see how Function Point Software makes it easier to manage the not-so-obvious critical factors of your infrastructure. Estimation of the size of software is an essential part of Software Project Management. It helps the project manager to further predict the effort and time which will be needed to build the project. Various measures are used in project size estimation. Some of these are:
1. Lines of Code (LOC): As the name suggest, LOC count the total number of lines of source code in a project. The units of LOC are:
The size is estimated by comparing it with the existing systems of same kind. The experts use it to predict the required size of various components of software and then add them to get the total size. Advantages:
Disadvantages:
2. Number of entities in ER diagram: ER model provides a static view of the project. It describes the entities and its relationships. The number of entities in ER model can be used to measure the estimation of size of project. Number of entities depends on the size of the project. This is because more entities needed more classes/structures thus leading to more coding. Advantages:
Disadvantages:
3. Total number of processes in detailed data flow diagram: Data Flow Diagram(DFD) represents the functional view of a software. The model depicts the main processes/functions involved in software and flow of data between them. Utilization of number of functions in DFD to predict software size. Already existing processes of similar type are studied and used to estimate the size of the process. Sum of the estimated size of each process gives the final estimated size. Advantages:
Disadvantages:
4. Function Point Analysis: In this method, the number and type of functions supported by the software are utilized to find FPC(function point count). The steps in function point analysis are:
The explanation of above points given below:
Advantages:
Disadvantages:
0 0 You Might Also LikeSubscribe to Our NewsletterHow is the size of a project estimated?Many factors go into project sizing, including estimated duration, resource requirements, budget, complexity, risk, visibility and related matters. Sizing frameworks should be established to define each "sizing factor" according to each project size.
What are 4 techniques of estimation?Major project estimation techniques. Top-down estimate. ... . Bottom-up estimate. ... . Expert judgment. ... . Comparative or analogous estimation. ... . Parametric model estimating. ... . Three-point estimating.. What are sizing methods that can be applied for estimation?Sizing Methods. The five major sizing methods that are being used by the survey participants included (1) sizing by analogy, (2) function points, (3) Halstead vocabulary, (4) proxies and (5) user stories/story points.
What are the size factors in software engineering?The software industry uses various sizing techniques to quantify the software size. They are Lines of code, Function points, Feature points, Use case points, Object points, Internet points, etc. These sizing techniques are programming language dependent or programming methodology dependent.
|