Functional and non-functional requirements in Software development Essay

Functional and non-functional requirements in Software development - Essay Example This involves the set of actions that clarify what exactly a particular system has to do. On the other hand, non-functional requirements engross the system constraints that define how it will do the functional requirements. It acts as a criterion for elaborating the performance of a particular system (Yang, 2010). The functional and non-functional requirements of any system always have a huge effect on the development life cycle. To be precise, all through the development life cycle of a system, functional requirements as the main subject of concern in each phase (Mishra & Mohanty, 2012). Right from the first phase, requirements analysis, to, maintenance phase, functional requirements act as the basis for each phase. That is, each phase, must ensure that the predefined functional requirements satisfy what the user is expected to get from the system. In this sense, functional requirements always define the amount of time to be spent in the system development life cycle (Shelly & Rosenblatt, 2012). A crucial example of functional requirements is, adding a new order into a web-based order entry system. This functionality requires a number of key attributes to be defined and they include, order name, its identification, time it was processed among others as stipulated in the requirements analysis phase. Therefore, as soon as this functional requirement is defined, then, throughout the development life cycle the developer must ensure that its features are perfectly satisfied until a final output product is delivered (Milanovic, 2011). One of the major non-functional requirements is efficiency. As stipulated earlier, non-functional requirements include the constraints that will elaborate how a system is to meet the pre defined functional requirements. To the development life cycle, efficiency depends on the outputs of the functional requirements. In this sense, non-functional requirements have very little effect

Enterprise Finance Essay Example | Topics and Well Written Essays - 1500 words - 1

Enterprise Finance - Essay Example The basic characterization of these sources can be done on two levels; internal and external (Biz/ed 2007). Previously, internal sources were more widely available to businesses, and they depended heavily on this method of financing. However, now external sources are also being greatly availed. Each method has several more characterizations, and each sub-source has its own advantages and disadvantages. The discussion that follows will cite as examples several of these sources for an analysis of the different methods of business finance. Internal Sources: as the name implies, this method of financing depends upon the business itself, and no external help is involved. Economic stability ha to be generated from within the establishment. Bushiness that do not have resources, funds or the means to invest or implore outside means of finance see it as the ideal way of establishing and developing their businesses. It is easier, hassle free and can be done on a more customized level, as the only party involved is the business management itself. However, this method involves a greater time period for the results to surface, and the management has to rely on its components for co-operation and patience if the efforts have top be dealt with successfully. Furthermore, mostly relatively small business make use of this approach of financing, as the greater the establishment, the greater the funds required for the maintenance and development of the business, and these increased funds can seldom be catered for internally. Also, all the loses of incurred during this process of financing would have to be born by the