COCOMO MODEL TYPES DRIVERS
COCOMO MODEL TYPES DRIVER
COCOMO MODEL TYPES SOFTWARE
COCOMO MODEL TYPES CODE
COCOMO MODEL TYPES FREE

Important information from an existing system. The reverse engineering process extracts elements and

COCOMO MODEL TYPES SOFTWARE

Software re-engineering is a combination of two consecutive processes i.e., software reverse engineering and software forward engineering as shown in the Figure. Reengineering tries to regenerate the abstract view of the system after which the forward engineering activities realize the system into new form. Reengineering involves implementing various techniques in analyzing and redesigning an existing system from the extracted information by the reverse engineering process. Reengineering can also be defined as вЂњany activity that: improves oneвЂ™s understanding of software, or prepares or improves the software itself, usually for increased maintainability, reusability, or evolvabilityвЂќ. Re-engineering is defined as вЂњthe examination and alteration of a subject system to reconstitute it in a new form and the subsequent implementation of the new formвЂќ.

Delivery: The modified system is released to the customer in this phase.

Acceptance testing: This type of testing involves the customers or the end users to use the system and point out errors, if any, which would be reported to the maintenance team, in order to make further changes.

COCOMO MODEL TYPES FREE

Regression or system testing: After the modifications are made to the existing system, tests are conducted on the new system to ensure that the new system is free of any errors and also to monitor whether the new system has met its new specifications.

Implementation: This phase includes activities involving coding, implementation, testing, integration of modified code, analysis of risks etc.

The input to this phase is the result of the analysis phase and also the details of the existing system which includes the appropriate documentation.

Design: The changes or the modifications that have to be made to the existing system are designed in this phase.

Input: Fixed per model type: Input + Calculation: Cocomo 81 Basic & Intermediate. Also analyzed in this phase are the alternative solutions, if any, for modifying the system in an efficient way, keeping the cost and other impacts in mind. By going as far as trying to apply weights to the requirements analysis phase while at the same time requiring input for the estimate that is not typically very accurate until the later phases of design, clearly points out a serious flaw in detailed COCOMO.

Analysis: The overall maintenance plan is sketched out which includes the design, implementation and test of the system to be modified.

The measure of how strongly the elements are related functionally inside a module is called cohesion in software engineering and the elements inside a module can be instructions, groups of instructions, definition of data, call from another module etc. The phase also includes decisions on whether to accept or reject the request sent from the customer. Introduction to Cohesion in Software Engineering.

Problem or modification identification: In this phase, the customer or the user sends in the request for change (also known as modification request вЂ“ MR).

The original COCOMO model has been very successful, but it doesnt apply to newer software development. It is the advanced model that estimates the software development effort like Intermediate COCOMO in each stage of the software development life cycle process. COCOMO II is tuned to modern software life cycles.

COCOMO MODEL TYPES DRIVER

The estimated effort and scheduled time are given by the relationship:Д®AF = It is an Effort Adjustment Factor, which is calculated by multiplying the parameter values of different cost driver parameters.

COCOMO MODEL TYPES DRIVERS

The intermediate model estimates software development effort in terms of size of the program and other related cost drivers parameters (product parameter, hardware parameter, resource parameter, and project parameter) of the project.

a, b, c, d = The constant parameters for a software project.

COCOMO MODEL TYPES CODE

KLOC = the size of the code for the project in Kilo lines of code.

D = Total time required for project development in Months (M).

E = Total effort required for the project in Man-Months (MM).

The estimated effort and scheduled time for the project are given by the relation:

It mainly deals with the number of lines of code and the level of estimation accuracy is less as we donвЂ™t consider the all parameters belongs to the project. It is the one type of static model to estimates software development effort quickly and roughly. This model depends on the number of lines of code for software product development.Д¬OCOMO model has three types: 1. it estimates or predicts the effort required for the project, total project cost and scheduled time for the project. The COCOMO (Constructive Cost Model) is one of the most popularly used software cost estimation models i.e. 6 Mark question | Asked in Software Engineering

Cocomo model types