Software Process Models Essay Example | Topics and Well Written Essays - 750 words

Software Process Models - Essay Example this scenario, the hospital will be using this information system to keep a record of the patient, such as their personal information, information regarding their disease and so on. The software development team has decided to adopt prototyping model for the development of this information system. This approach will allow the software development team to build a prototype of the system in order that the users of the system could identify the working of the proposed system. Basically, the majority of system analysts nowadays makes use of prototypes all the way through the system design. A prototype is a functioning model of the planned system (Whitten, Bentley, & Dittman, 2000; Shelly, Cashman, & Vermaat, 2005). The system analyst basically constructs a useful structure of the solution throughout the design. Prototyping allows the software development team to develop a functional system quickly and reasonably for end users to weigh up. By communicating with the prototype users can search out an improved suggestion of the information requirements. The prototype authorized by the users can be used as a model to build the ultimate system. In this scenario, the prototype can be acknowledged as a functioning adaptation of software or an element of the software, but it is intended to be no more than a development model. Additionally, once prepared, the prototype will be additionally developed until it obeys the rules accurately to user’s requirements. Once the design has been completed, the prototype can be transformed into a sophisticated development system. The method of developing a foundational design, making use of it, refining it and trying again has been acknowledged an iterative method of systems development for the reason that the steps essential to develop a system can be repetitive over and over again (Laudon & Laudon, 1999; Whitten, Bentley, & Dittman, 2000). In addition, prototyping is further openly iterative than the traditional life cycle, and it

GDP Essay Example | Topics and Well Written Essays - 1750 words

GDP - Essay Example Measuring GDP is a bit complex, but the most basic form of the calculation can be done in two ways: this is through adding up what everyone earned in a year (income approach) or adding up what everybody spent in a year (expenditure method) (Baumol et al 69). Both methods can give you roughly a similar total. With the income approach, which is also known as (GDP) I is calculated by adding the total compensation to gross profits, employees for both incorporated and non-incorporated firms in addition to taxes without any subsidies. On the contrary, the expenditure method is a more usable or common approach and is calculated by adding investment, total consumption, government spending and net exports. Introduction GDP is termed as the market value of all the final goods and services that are produced domestically in one year. It is also regarded as the single most important measure of macroeconomic performance. It is closely related to the measure of the economy’s total output of products known as gross national product (GNP). This is regarded as the market value of all the final goods and services produced by a nation within a year. The difference between GDP and GDNP is a bit complex. In much more simpler terms, GDP involves only goods and services that are produced by a nations’ own people and their corporations. ... A person can either use statistics to calculate the overall macroeconomic activity. Measuring GDP: The expenditure and income approaches There are two distinct ways of measuring GDP, the income and expenditure approach. In the expenditure approach, we add up the market value of all the domestic expenditure that was made on the final goods and services in a single year. The final goods and services are known as the goods and services that have been purchased for the final use or the goods and services that will not be used in production or resold again in that specific year. On the contrary, the intermediate goods and services are those that can be used in the production of the final goods and services. This type of foods and services are not included in the expenditure approach to obtain the GDP. This is due to the fact that expenditures on intermediate goods and services are included in the market value of expenditures that are made on the final goods and services (Mankiw 89). There fore, including both intermediate and final goods and services using the expenditure approach will lead to double counting thus and exaggeration of the true market value of GDP. The total expenditure of the final goods and services can be broken down into four large types of expenditure categories with reference to the types of goods and services that are purchased. The average total of the four types of expenditure adds up to give us the GDP. These include: a) Investment expenditure: this can be divided into two groups: expenditures on fixed investment goods and that on inventory investment. The fixed investment goods are those that a regarded as useful over a long period of time. Examples of fixed investment