COCOMO II Post Architecture Model

support the decision building in different phases Boehm [1]. The very first decision on a project is evaluating, in which it is acknowledged that, whether the project is usually and economically feasible or not Boehm et al., BW & Valerdi, R [2][3]. The effort required to make the software is a vital factor in building decision, as software projects seldom comprise major cost items other than salaries and interrelated side expenses. Even before starting a project, there could be deliberate forecast activities to find out the potential relevance domains and projects Charette & Chen et al., [4][5].
Estimating the software project development effort in early development is a tedious job for the software project managers in the current industrial
The COCOMO II early design model is a simplification of the post architectural model Galorath & Evans [10]. All type of COCOMO model analysis is made based on the impact of each software cost attribute in estimation and in specific development situations Cuadrado et al.,[11]. These types of estimation and analysis will helps us to suggest some useful guidelines to the software project managers for better software cost and effort estimation and to maintain the cost of a software project in specified limit for better decision making at different
The reusability, risk management and quality of the software product are considered as a key goal in changing the cost drivers and its ranges Helm & Idri [22] [23]. The rating levels are assigned or altered based on the impact in recent development activities like low, very low, high, very high, extra high and nominal. Software project effort multipliers also called as cost drivers of COCOMO II post architecture model are categorized into four major areas viz.,
1. Product factors
2. Platform factors
3. Personal factors 4. Project factors

Product factors

Four cost factors are grouped in this category and these factors or cost drivers will decide the characteristics and the cost of the software project based on its impact of the effort required to develop the software project. The ranges selected for the cost drivers will decide the complexity levels and the effort required for developing software project.

Platform Factors These factors are measured based on the impact of target machine hardware and software infrastructure in developing the software project. It consists of three factors in which the effort required to develop the code that is to be executed in a target machine’s hardware and software platforms.

Personal