The Science Behind How Popcorn Pops

The Science Behind How Popcorn Pops Popcorn has been a popular snack for thousands of years. Remnants of the tasty treat have been found in Mexico dating back to 3600 BC. Popcorn pops because each popcorn kernel is special. Heres a look at what makes popcorn different from other seeds and how popcorn pops. Why It Pops Popcorn kernels contain oil and water with starch, surrounded by a hard and strong outer coating. When popcorn is heated, the water inside the kernel tries to expand into steam, but it cannot escape through the seed coat (the popcorn hull or pericarp). The hot oil and steam gelatinizes the starch inside the popcorn kernel, making it softer and more pliable. When the popcorn reaches a temperature of 180 C (356 F),  the pressure inside the kernel is around 135 psi (930 kPa), which is sufficient pressure to rupture the popcorn hull, essentially turning the kernel inside-out. The pressure inside the kernel is released very quickly, expanding the proteins and starch inside the popcorn kernel into a foam, which cools and sets into the familiar popcorn puff. A popped piece of corn is about 20 to 50 times larger than the original kernel. If popcorn is heated too slowly, it wont pop because steam leaks out of the tender tip of the kernel. If popcorn is heated too quickly, it will pop, but the center of each kernel will be hard because the starch hasnt had time to gelatinize and form a foam. How Microwave Popcorn Works Originally, popcorn was made by directly heating the kernels. Bags of microwave popcorn are a bit different because the energy comes from microwaves rather than infrared radiation. The energy from the microwaves makes the water molecules in each kernel move faster, exerting more pressure on the hull until the kernel explodes. The bag that microwave popcorn comes in helps trap the steam and moisture so the corn can pop more quickly. Each bag is lined with flavors so when a kernel pops, it strikes the side of the bag and gets coated. Some microwave popcorn presents a health risk not encountered with regular popcorn because the flavorings are also affected by the microwave and get into the air. Does all corn pop? Popcorn that you buy at the store or grow as popcorn for a garden is a special variety of corn. The commonly cultivated strain is Zea mays everta, which is a type of flint corn. Some wild or heritage strains of corn will also pop. The most common types of popcorn have white or yellow pearl-type  kernels, although white, yellow, mauve, red, purple, and variegated colors are available in both pearl and rice shapes. Even the right strain of corn wont pop unless its moisture content has a moisture content around 14 to 15%. Freshly harvested corn pops, but the resulting popcorn will be chewy and dense. Sweet Corn and Field Corn Two other common types of corn are sweet corn and field corn. If these types of corn are dried so they have the right moisture content, a small number of kernels will pop. However, the corn that pops wont be as fluffy as regular popcorn and will have a different flavor. Attempting to pop field corn using oil is more likely to produce a snack more like Corn Nuts, where the corn kernels expand but dont break apart. Do other grains pop? Popcorn is not the only grain that pops! Sorghum, quinoa, millet, and amaranth grain all puff up when heated as the pressure from expanding steam breaks open the seed coat.

Appeasement and the Munich - Smart Custom Writing Samples

Appeasement and the Munich - Smart Custom Writing Heat and TemperatureIn order to understand about heat and temperature, it is of great importance to introduce the meaning of matter as well as the Kinetic Theory of Matter. This is because heat can be seen to exist when its effects are observed on matter. Without matter heat and temperature could not be realized. Matter can be defined as anything that has mass and that can occupy space. Matter is composed of substances, and these can be seen being made up of atoms, ions and molecules. Atoms, ions and molecules are the building blocks of matter; such that the behaviors of different types of substances are determined by these primary particles. The atoms of substances contain minute particles which are referred to as protons and electrons. These subatomic particles are also considered matter since they both have weight and occupy space (Atkins Paula, 2002).   Matter exists in three distinct states namely, solid state, liquid state and gaseous state. The three state of matter are inter-convertible such that one state can be converted into another state by changing the immediate environmental conditions especially temperature. The solid state of matter is characterized by having its own volume as well having a definite shape. Liquid state of matter is characterized by having its own volume but assumes the shape of the container it occupies. Gaseous state of matter does not have both its own volume and shape but occupies entire volume of the container and as well assumes the shape of the container it occupies (Atkins Paula, 2002). Kinetic Theory of Matter states that matter is made up of very many minute particles that are in a constant state of motion. The theory can also be referred to as the Kinetic Molecular Theory of Matter.   The theory forms the basis to explain the behavior that different forms of matter exhibit simply by making simple assumptions, for example, the idea that matter is composed of widely spaced particles which are in a constant motion. The significant areas in this case are transfer or flow of heat as well as the relationship between temperature, pressure, and volume of gases. The Kinetic Theory of matter is a mere prediction regarding the behavior of matter, based on particular approximations and assumptions. These assumptions and approximations are made from experiments and observations, for instance, the fact that objects are made up of atoms or small molecules (Burshtein, 1996).   Heat can be defined as a form of energy that is associated with the motion of molecules or atoms and that can be conveyed through fluid and solid media by the process of conduction, through vacuum by the process of radiation, and through fluid media by convection process.   There are different sources of heat, for instance, heat due to friction, heat due to nuclear reactions, heat due to sun, heat due to burning of fossil fuels, and heat due to electricity. This transmission of energy from one substance to another is determined by a change in phase or a difference in temperature. Therefore temperature can be defined as the measure of the mean kinetic energy of the molecules or atoms in a given sample of matter, and it is usually expressed in degrees or units chosen on a typical scale. The relationship between heat and temperature is depicted from the definitions. Temperatures of substances rise when heat is supplied. Intense heat is characterized by high temperature (Turns, 2006). Now it will be very clear, if in the discussion of converting substances from one state to another immediate state, heat and temperature are involved. From the Kinetic Theory of Matter, it is evident that matter is made up of small particles that are in a constant state of motion. These particles may consist of molecules, ions or atoms which are held together by strong forces of attraction. In the solid state, the particles are closely packed together in fixed positions. The particles cannot move from one position to another but can vigorously vibrate within their fixed positions, and this is because the forces of attraction between the particles are very strong. With the increase in the temperature of a substance in solid state, the particles gain heat energy gradually and the kinetic energy of the particles increases. A point is reached when the particles start to move more vigorous until the forces of attraction between them weakens.   The particles can now move from one place t o another as the substance changes state from solid to liquid. The substance loses its definite shape but it still has its own volume (Atkins Paula, 2002). In the liquid state, the particles are not as closely held together as in the solid states since the forces of attraction between the particles are a bit weaker. The particles are free to move from one place to another within the structure. When the temperature of the substance is increased further, the particles gradually absorb heat energy. The kinetic energy of the particles further increases as the particles move more vigorous. A point reaches when the forces of attraction between the particles are overcome and the particles move far apart from one another. At this point the substance changes its state from liquid to gaseous state (Turns, 2006).   Reduction in temperature reverses the processes, such that the substance in gaseous state changes into liquid state and finally into solid state. This is because, as the temperature reduces, the kinetic energy of the particles goes down and the forces of attraction become stronger. Thus the particles of the substance attract one another. Heat capacity of a substance is defined as a measurable physical quantity that portrays the amount of heat needed to change the temperature of a body by a particular amount. The SI units for heat capacity are joules per Kelvin. In substances heat capacity is determined by various properties for example the amount of matter in the substance expressed in terms of its mass, the type of material of which the substance is composed of, the temperature of the substance, and the atmospheric pressure (White, 1999).  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚     Ã‚   References Atkins, P., Paula, J. (2002). Atkins' Physical Chemistry. Oxford Oxfordshire: Oxford University Press. Burshtein, a., (1996). Introduction to Thermodynamics and Kinetic Theory of Matter.   London: J. Wiley. Turns, S., (2006). Thermal-Fluid Sciences. Cambridge: Cambridge University Press. White, G., (1999). Heat Capacity and Thermal Expansion at Low Temperatures. New York:   Kluwer Academic/Plenum.

Black Boy Essay Example | Topics and Well Written Essays - 1000 words

Black Boy - Essay Example Accordingly, the author has chosen to focus on 5 unique situations that are indicative of the hardships caused by Jim Crow on Richard Wright’s formative years in Part 1 of the autobiography (the part that details his life in the South prior to a move to Chicago). The first of these is the general lack of work and economic hardships that is such a mainstay of the opening pages of the story. The hardship and deprivation were of course felt by many in the Deep South; however, none more so than the African American community. As these were both the least educated and most repressed, finding steady and gainful employment was nearly impossible. Something that is further evidenced by this is the fact that no one was able to fall back on their savings or any form of contingency plans they had made. Whereas many individuals in our current society have the ability to stash away a bit of savings in case the unthinkable happens, Richard Wright’s family was living on the very border of destitution even when the mother was employed and working multiple jobs. Of course this meant that when disaster struck and she was taken ill, there was no recourse but to fall back on the mercy and kindness of her extended family. ... A further evidence of how Jim Crow affected the life of young Richard Wright is seen in the fact that he regularly misses school and eventually drops out early on in his youth (Wright 18). However, what is noticeably absent is the mention of any type of truancy officer or guidance counselor that is able to check on young Richard Wright and encourage the family to keep the young boy in school. Rather, it is painfully evident that the educational system cares little for the loss of one little black boy from the system. Such an eventuality acquaints the reader with the net worth that the Jim Crow South placed on the black person’s role in society. Richard relates that life became noticeably better when he was able to move in with his aunt and uncle who, by the standards he was accustomed, earned a very good living. Richard’s uncle, Hoskins, ran a successful saloon in town and was able to adequately provide for all of the family members under his roof in this way. Howvever, the jealousy and horror of racism and Jim Crow reared its head again in this location and affected the murder of Hoskins at the hands of an angry and jealous group of white men in town. At the heart of Jim Crow one understands there is a primal fear that the black person would rise and better himself; thereby freeing himself/herself from the constraints of slavery and servitude that had for so long defined his/her existence. In this way, the reader is made aware of the fact that Hoskin’s death was merely an extension of the problems and issues of racism and Jim Crow that had been experienced in various ways previously in his story. The final instance of this which will be discussed in this brief paper is concentric around the

Cryopreservation of Zebrafish Ovarian Follicles Essay

Cryopreservation of Zebrafish Ovarian Follicles - Essay Example The technologies in cryopreservation have undergone tremendous advances over the last decade. In addition, cryopreservation of oocytes and embryos is also being used as an effective means of treating infertility. In this technology, the clinical application seeks to ensure the optimal survival of embryos and oocytes that are subsequently thawed and stored for transfer . The aim of this practical experimentation is to compare the slow-cooling procedures with vitrification to analyze and evaluate the most effective and safest procedure as well as to endorse suitable recommendation for the adoption of best practices. To do this, it is necessary to test and calculate the viability for control, slow-cooling and vitrification samples. Determining the number of cells in the culture is also important for standardising culture conditions and performing accurate quantitation experiments . The use of viability test with hemacytometer and typan blue staining will enable us to determine the cell number, the correctness of which is inevitable for accurate test results. Live cells appear colourless and bright under phase contrast, while the dead cells sustain blue stains and are non-refractive. To facilitate accuracy and consistency of cell counts, we have used a viability counting system. This involves counting viable, live and dead cells in one or more large corner squares and recording the cell counts. In order to obtain an accurate cell count, 40 to 70 cells will be counted during the test phase. Therefore, it may be necessary to count more than one large corner square. The controlled technique, which is the conservative method used for the purpose of cryopreservation of cells and tissues, is based on the slow-cooling approach. It needs to be appreciated that a large number of non-sensitive cells can be preserved in liquid nitrogen with little damage through slow-cooling

Database Management System In An Organization

Database Management System In An Organization A DBMS Database Management System is a commercial software program used to control, manipulate and maintain the Database by enabling users to access, store, organize, modify, retrieve, secure and provide integrity of data in a database. A DBMS accepts request from users or applications and instructs the operating system to transfer the appropriate data as shown in the diagram below. Figure 1: database management (Source: http://broncu.blogspot.com/2010/04/dbms-mysql.html) Wikipedia (2011) defines Database Management System as a set of computer programs that controls the creation, maintenance, and the use of a database. It allows organizations to place control of database development in the hands of database administrators (DBAs) and other specialists. A DBMS is a system software package that helps the use of integrated collection of data records and files known as databases. It allows different user application programs to easily access the same database. DBMSs may use any of a variety of database models, such as the network model or relational model. In large systems, a DBMS allows users and other software to store and retrieve data in a structured way. Instead of having to write computer programs to extract information, user can ask simple questions in a query language. Thus, many DBMS packages provide Fourth-generation programming language (4GLs) and other application development features. It helps to specify the logical organization for a database and access and use the information within a database. It provides facilities for controlling data access, enforcing data integrity, managing concurrency, and restoring the database from backups. A DBMS also provides the ability to logically present database information to users. Examples: Microsoft Access, My SQL, Microsoft SQL Server, Oracle and FileMaker Pro are all examples of database management systems. (Wikipedia, 2011). Microsoft Access: Microsoft Office Access, previously known as Microsoft Access, is a relational database management system from Microsoft that combines the relational Microsoft jet database Engine with a graphical user interface and software-development tools. It is a member of the Microsoft Office suite of applications, included in the Professional and higher editions or sold separately. In mid-May 2010, the current version Microsoft Access 2010 was released by Microsoft in Office 2010; Microsoft Office Access 2007 was the prior version. My SQL: MySQL is a relational database management system that runs as a server providing multi-user access to a number of databases. It is named after developer Michael Widenius daughter, my. The SQL phrase stands for Structured Query Language. Microsoft SQL Server: Microsoft SQL Server is a relational model database server produced by Microsoft. Its primary query languages are T-SQL and ANSI S SQL. Oracle: The Oracle Database (commonly referred to as Oracle RDBMS or simply as Oracle) is an object-relational database management system (ORDBMS), produced and marketed by Oracle Corporation. FileMaker Pro: FileMaker Pro is a cross-platform relational database application from FileMaker Inc., formerly Claris, a subsidiary of Apple Inc. It integrates a database engine with a GUI-based interface, allowing users to modify the database by dragging new elements into layouts, screens, or forms. Advantages Singh (2009) illustrates advantages and disadvantages of DBMS. A true DBMS offers several advantages over file processing. The principal advantages of a DBMS are the followings: à ¢Ã¢â€š ¬Ã‚ ¢ Flexibility: Because programs and data are independent, programs do not have to be modified when types of unrelated data are added to or deleted from the database, or when physical storage changes. à ¢Ã¢â€š ¬Ã‚ ¢ Fast response to information requests: Because data are integrated into a single database, complex requests can be handled much more rapidly then if the data were located in separate, non-integrated files. In many businesses, faster response means better customer service. à ¢Ã¢â€š ¬Ã‚ ¢ Multiple access: Database software allows data to be accessed in a variety of ways (such as through various key fields) and often, by using several programming languages (both 3GL and nonprocedural 4GL programs). à ¢Ã¢â€š ¬Ã‚ ¢ Lower user training costs: Users often find it easier to learn such systems and training costs may be reduced. Also, the total time taken to process requests may be shorter, which would increase user productivity. à ¢Ã¢â€š ¬Ã‚ ¢ Less storage: Theoretically, all occurrences of data items need be stored only once, thereby eliminating the storage of redundant data. System developers and database designers often use data normalization to minimize data redundancy. Warehouse of information, where large data can be stored. Systematic storage meaning data can be stored in the form of tables. Change of schema meaning it is not platform dependent tables can be edited to add new ones without hampering the applications. No language dependence meaning use of various languages on various platforms. Table joins meaning data can be in two or more tables and can be put into one table this enables easy retrieval of data. Data security meaning DBMS secures all your data. The data independence and efficient access of data Easy in data administration or data management. Provides concurrent access, recovers the data from the crashes. Disadvantages A database system generally provides on-line access to the database for many users. In contrast, a conventional system is often designed to meet a specific need and therefore generally provides access to only a small number of users. Because of the larger number of users accessing the data when a database is used, the enterprise may involve additional risks as compared to a conventional data processing system in the following areas. Confidentiality, privacy and security. Data quality. Data integrity. Enterprise vulnerability may be higher. The cost of using DBMS. Confidentiality, Privacy and Security When information is centralised and is made available to users from remote locations, the possibilities of abuse are often more than in a conventional data processing system. To reduce the chances of unauthorised users accessing sensitive information, it is necessary to take technical, administrative and, possibly, legal measures. Most databases store valuable information that must be protected against deliberate trespass and destruction. Data Quality Since the database is accessible to users remotely, adequate controls are needed to control users updating data and to control data quality. With increased number of users accessing data directly, there are enormous opportunities for users to damage the data. Unless there are suitable controls, the data quality may be compromised. Data Integrity Since a large number of users could be using a database concurrently, technical safeguards are necessary to ensure that the data remain correct during operation. The main threat to data integrity comes from several different users attempting to update the same data at the same time. The database therefore needs to be protected against inadvertent changes by the users. Enterprise Vulnerability Centralising all data of an enterprise in one database may mean that the database becomes an indispensible resource. The survival of the enterprise may depend on reliable information being available from its database. The enterprise therefore becomes vulnerable to the destruction of the database or to unauthorised modification of the database. The Cost of using a DBMS Conventional data processing systems are typically designed to run a number of well-defined, pre-planned processes. Such systems are often tuned to run efficiently for the processes that they were designed for. Although the conventional systems are usually fairly inflexible in that new applications may be difficult to implement and/or expensive to run, they are usually very efficient for the applications they are designed for. The database approach on the other hand provides a flexible alternative where new applications can be developed relatively inexpensively. The flexible approach is not without its costs and one of these costs is the additional cost of running applications that the conventional system was designed for. Using standardised software is almost always less machine efficient than specialised software. Cost of hardware and software meaning having to upgrade the hardware used for file based system it is very costly. Cost of data conversion meaning its costly to convert data of data files into database and have to hire database and system designers. Cost of staff training meaning organization has to be aid a lot of amount for the training of staff to run dms. Database damage meaning all data stored into a single file if database is damaged due to electric failure or database is corrupted on a storage media meaning all valuable data may be lost forever. It also takes a lot of time and effort to get DBMS started. Benefits of a Database Management System in an organization As discuss by the Ezinearticles (2011), organizations often times find themselves in a dilemma on how they can effectively serve the needs of their members. At the same time, they also enter a situation wherein there is difficulty in handling data, given the sheer volume of information. More often than not, the results of these instances are not anything but desirable; confusion, chaos, mismanagement, lost confidence by members, etc. To solve these problems, organizations turn to information technology (IT) experts for answers. With many years of experience in coming up with solutions for businesses and other entities, IT professionals have what it takes to come up with an effective data management and accreditation system that will be used by organizations. There must also be enhanced accessibility to the said system, which means that members from other locations can still gain entry into the system, regardless of elements such as time and geography. Investing on the services of IT consultants is, however, not like buying something from a store. It entails huge sums of money to come up with a good data management and accreditation system for an organization, aside from engaging the professional services of IT experts. Fortunately, IT experts can help minimize the cost through the creation of a database system based on existing resources being held by the organization. Investing on the services of IT experts and having a good data and accreditation management system may seem to be too costly, but the long-term benefits are worthy to be seen. By having a good database system, it will be much easier for organizations to deal with their members because of enhanced access to information. The placement of additional pieces of information can be done better if there is a good data management system. Having a good data and accreditation management system empowers members of an organization. This is possible because they have the ability to gain the necessary information about things that matter to them as members. They conduction of business with the organizations intervention is made faster and more efficient if a good data management system is in place. There is no reason for organizations to hesitate when it comes to investing on a good data and accreditation management system. The long-term benefits of having one are far greater than the costs, and will be very helpful to the organization and their members in the long run. Improved strategic use of corporate data. Reduced complexity of the organizations information systems environment. Reduced data redundancy and inconsistency. Enhanced data integrity. Application-data independence. Improved security. Reduced application development and maintenance costs. Improved flexibility of information systems. Increased access and availability of data and information. (Blurtit, 2011). Prospects in DBMS and Career Opportunities The work of a database administrator (DBA) varies according to the nature of the employing organisation and the level of responsibility associated with the post. The work may be pure maintenance or it may also involve specialising in database development. Prospects, the UKs official career website (2011) states that jobs available in this field are: Senior Database Architect Database Architect design and builds database structure and objects that best support operational and analytics application. Tests and debug physical database objects for performance and troubleshooting. * Design and implement optimal star and snowflake schema in the database * Communicate and collaborate with team members and management on the designed database structures and schemas * Write and present eloquently with the appropriate audience perspective in mind * Support troubleshooting of production issues of existing application as warranted * Participate in collaborative discussions with team members to monitor progress against enhancement queue and bug resolution. * Stay proactive in identifying potential risks/issues due to the overall application design and make recommendations. Database Administrator This position requires a Top Secret Security Clearance. This position will support a US Air Force Contract. The successful candidate will be responsible for planning, coordinating and administering computerized databases, including base definition, structure, documentation, long and short range requirements, operational guidelines, protection and logical-physical database design. Formulates and monitors policies, procedures and standards relating to database management. Identifies, evaluates and recommends relevant COTS software tools. Collaborate with software engineers, security administration, computer operations, network management and system administration to ensure quality and integrity of databases, application software and data. Responsible for performance monitoring, database. Database Architect Specialist Database Architect design and builds database structure and objects that best support operational and analytics application. Tests and debug physical database objects for performance and troubleshooting. * Design and implement optimal star and snowflake schema in the database * Communicate and collaborate with team members and management on the designed database structures and schemas * Write and present eloquently with the appropriate audience perspective in mind * Support troubleshooting of production issues of existing application as warranted * Participate in collaborative discussions with team members to monitor progress against enhancement queue and bug resolution. * Stay proactive in identifying potential risks/issues due to the overall application design and make recommendations. Database Administration Consultant Evaluates new database technologies and tools, sets database system and programming standards, applies database technology to business problems and manages the development and production database environments with emphasis on security, availability and performance. Provides database services in compliance with all audit and regulatory requirements. The ideal candidate must be experienced in the management of Oracle E-Business 11.5.10.2 including installation, upgrade, patching, cloning, backup and recovery, monitoring, tuning, security, and definition of procedures for custom development. The ideal candidate must be experienced in the implementation and management of Oracle E-Business 11.5.10.2 as configured for the Oracle Massive Availability Architecture. Senior Database Engineer Responsible for requirements analysis, software development and installation, integration, evaluation, enhancement, maintenance, testing, and problem diagnosis and resolution. Qualifications: Bachelors degree with ten (10) years experience as a Database Engineer in developing relational database software and experience with one or more relational database products. Preferred Additional Skills: Possess organizational and management skills, along with the ability to respond to crises objectively. Understanding of the current database management system releases. Conclusion The document that we have put together is a group assignment that was done by four individuals. Some of the problems that we faced as a group are that, we couldnt meet due to our clashing schedules; others are busy with other obligations. We would like to say that we tried to produce the best group work that we could, hopefully learnt from this experience to better ourselves for our future endeavors.

Software Development Life Cycle

SOFTWARE DEVELOPMENT LIFE CYCLE SUMMARY SOFTWARE DEVELOPMENT LIFE CYCLE is basically a framework which describes the activities performed at each stage of a software development Project. These activities involve stages like the requirements, design, implementation, testing, installation and maintenance. In the information technology industry, SDLC plays a big role. No software development process will ever be completed efficiently and also meeting the budget client requirements without SDLC. This is because SDLC involves a structural framework which describes the phases involved in information system development. SDLC in management is an important factor which needs to be taken into consideration if you want a software development project to be resounding success. The phases of SDLC can vary somewhat but generally include the following: Conceptualization Requirements and cost/benefits analysis Detailed specification of the software requirements Software design Programming Testing User and technical training; and Maintenance The following are some basic popular models that are adopted by many software development firms System Development Life Cycle (SDLC) Model Prototyping Model Rapid Application Development Model Component Assembly Model As part of my research project I would be studying the core principles of SDLC. I would also perform research on available SDLC models in the information technology industry. System Development Life Cycle (SDLC) Model This is also known as Classic Life Cycle Model (or) Linear Sequential Model (or) Waterfall Method. This model has the following. Most software teams still use a waterfall process for development projects. Taking an extreme waterfall approach means that you complete a number of phases in a strictly ordered sequence: requirements analysis, design, implementation/integration, and then testingg activities. 1. System/Information Engineering and Modeling As software is always of a large system (or business), work begins by establishing the requirements for all system elements and then allocating some subset of these requirements to software. This system view is essential when the software must interface with other elements such as hardware, people and other resources. System is the basic and very critical requirement for the existence of software in any entity. So if the system is not in place, the system should be engineered and put in place. In some cases, to extract the maximum output, the system should be re-engineered and spruced up. Once the ideal system is engineered or tuned, the development team studies the software requirement for the system. 2. Software Requirement Analysis This process is also known as feasibility study. In this phase, the development team visits the customer and studies their system. They investigate the need for possible software automation in the given system. By the end of the feasibility study, the team furnishes a document that holds the different specific recommendations for the candidate system. It also includes the personnel assignments, costs, project schedule, target dates etc†¦. The requirement gathering process is intensified and focussed specially on software. To understand the nature of the program(s) to be built, the system engineer or â€Å"Analyst† must understand the information domain for the software, as well as required function, behavior, performance and interfacing. The essential purpose of this phase is to find the need and to define the problem that needs to be solved . 3. System Analysis and Design In this phase, the software development process, the software's overall structure and its nuances are defined. In terms of the client/server technology, the number of tiers needed for the package architecture, the database design, the data structure design etc†¦ are all defined in this phase. A software development model is thus created. Analysis and Design are very crucial in the whole development cycle. Any glitch in the design phase could be very expensive to solve in the later stage of the software development. Much care is taken during this phase. The logical system of the product is developed in this phase. 4. Code Generation The design must be translated into a machine-readable form. The code generation step performs this task. If the design is performed in a detailed manner, code generation can be accomplished without much complication. Programming tools like compilers, interpreters, debuggers etc†¦ are used to generate the code. Different high level programming languages like C, C++, Pascal, Java are used for coding. With respect to the type of application, the right programming language is chosen. 5. Testing Agile software development refers to a group of software development methodologies based on iterative development, where requirements and solutions evolve through collaboration between self-organizing cross-functional teams. Agile methods generally promote a disciplined project management process that encourages frequent inspection and adaptation, a leadership philosophy that encourages teamwork, self-organization and accountability, a set of engineering best practices intended to allow for rapid delivery of high-quality software, and a business approach that aligns development with customer needs and company goals. Agile methods have much in common with the â€Å"Rapid Application Development† techniqu

The American Civil War The Battle of Gettysburg - 985 Words

Gettysburg was fought during the Civil War between the Union Army of the Potomac led by General Meade, and the Confederate Army commanded by General R.E. Lee. The battle only was waged over the course of three days, but it would prove to be the most costly of the entire Civil War. In this paper, we will show how the Confederacy failed to identify certain principles of war, which lead them to incorrectly conduct a center of gravity and critical vulnerability analysis on the Union. Because of this failure, the Confederacy opened the door for the Union to score a decisive victory. Examining the battle form a Principles of War standpoint, we can examine how a few principles became decisive factors in the battle, or how their lack of use prevented success in some cases. An important principle was Mass, in so far as the Confederacy was better able to employ this principle than the Army of the Potomac. On the first day of fighting, the confederacy was successfully able to employ their units against Union defenses, forcing the Union forces to retreat (Vossler 53). An interesting turn of events would soon favor the Federal Army as General J.E.B. Stuart and his cavalry were north and east of Gettysburg causing a lot of fear in the North but consequently were not performing adequate reconnaissance, the result was that General Lee did not know where General Meade and the Army of the Potomac were or what their strength was (Freeman, 147). When Confederate General Henry Heth moved intoShow MoreRelatedBattle Of Gettysburg : Gettysburg Of The American Civil War1465 Words   |  6 PagesShaJuan Ervin Dr.Seamen MIS 303-01 2/24/16 Battle of Gettysburg Day 3 The Battle of Gettysburg is widely known as the largest battle of the American Civil War. This crucial battle occurred over three days, July 1st to July 3, 1863 surrounding the town of Gettysburg. In this battle, General Robert E. Lee tactfully awaited the forces of General Meade’s Union. On July 1st the Confederates were exploited by the Union resulting in a loss. The following day, the Confederates gained ground by conductingRead MoreThe Battle Of Gettysburg And American Civil War924 Words   |  4 PagesThe Battle of Gettysburg was fought over the first three days in July 1863, in and around the town of Gettysburg, Pennsylvania, by Union and Confederate forces during the American Civil War. Confederate General Robert E. Lee led the Army of Northern Virginia, while Union Major General George Gordon Meade commanded the Army of the Potomac. The Battle of Gettysburg involved the largest number of casualties of the entire war and is often described as the war s turning point. With his army in highRead MoreThe Battle Of Gettysburg And The American Civil War1993 Words   |  8 Pagesthe Battle of Gettysburg was the turning point in the American Civil War. Some even go as far to as to call it the â€Å"high water mark† of the Confederate States. What is known is that it represented the last time a coherent Confederate Army threatened northern soil. In fact, from Gettysburg forward, the Confederation of Southern States would be fighting a defensive/fighting retreat. Gettysburg was one of the bloodiest battles of the war, but there were many bloody battles during the American CivilRead MoreThe Battle Of Gettysburg Was The Turning Point Of The American Civil War837 Words   |  4 PagesThe Battle of Gettysburg was the turning point of the American Civil war. General Robert E. Lee was the commanding officer of the Confederate army. During the battle of Gettysburg Lee’s military strategy was to fight offensive. Lee’s goal during the ba ttle was to seize the high ground and out last the union army. The Union army had outnumbered the Confederate soldiers. General Lee’s first hand man was General James Longstreet. Longstreet believes the new technology in warfare would make attackingRead MoreEssay about The American Civil War: America’s Bloodiest War716 Words   |  3 PagesThe American Civil War, known as the War Between the States’ by some, was America’s bloodiest war. The Civil War consisted of over 10,000 battles between The Union Army of the North and the South’s Confederate Army, which lasted almost 4 years. The War was fought in 23 states and of the more than 10,000 battles only about 50 were major battles. (Weider, The Civil War, 1) In this paper the reader will learn about important dates of the war also about 4 of the bloodiest battles in the war; the BattleRead MoreThe Battle Of Gettysburg And A Website Article From The New World Encyclopedia1320 Words   |  6 PagesTh e battle of Gettysburg is seen today as the turning point of the war, and after the analysis of these historical documents its clear why the bloodshed at Gettysburg was as significant as it was being able to turn the tides of the war. Two sources that are going to be used in this are a website article from History.com: â€Å"Battle of Gettysburg† and a website article from the NeW World Encyclopedia: â€Å"Battle of gettysburg†. These sources will be analyzed by their origin, purpose, content, value andRead MoreThe Battle Of Gettysburg And Civil War1375 Words   |  6 PagesThe Battle of Gettysburg occurred July 1-3, 1863 in and around Gettysburg, Pennsylvania and was one of the most significant battles of the American Civil War. Union forces of the North, commanded by Major General George G. Meade met and fought the Confederate forces of the South, commanded by General Robert E. Lee. Many historians believe the battle was a large turning point in the Civil War in f avor of the Union (Woodworth, 2008). However, this is disputable. The battle was also significantRead MoreThe Battle Of Gettysburg : Why Was It A Turning Point?1361 Words   |  6 PagesThe Battle of Gettysburg: Why Was It a Turning Point? â€Å"Death created the modern American union, not just by ensuring national survival, but by shaping enduring national structures and commitments. The work of death was Civil War America s most fundamental and most demanding undertaking†Ã¢â‚¬â€ Drew Gilpin Faust. Death in the Civil War was indeed a principle in creating the America we know and love today. This was the bloodiest war in United States military history. Within the war was the Battle of GettysburgRead MoreSlavery And The Civil War1706 Words   |  7 PagesAbraham Lincoln once said, â€Å"A house divided against itself cannot stand.† In the 1800s, the American nation was slowly becoming a house divided against itself. The United States were no longer united, mainly over the issue of slavery. In fact, many historians believe that, â€Å"From the nation’s founding, the issue of slavery threatened to tear the United States apart.† (â€Å"The Civil War† 1). The issue of slavery was always kept at bay through the utilization of various compromises; however a permanentRead MoreThe Battle Of Gettysburg And The Civil War Essay1448 Words   |  6 PagesOn July 1, 1863, the bloodiest, most gruesome war in American History began. The Battle of Gettysburg was fought in the small town of Gettysburg, Pennsylvania. The Union Army under the command of General George G. Meade faced the Confederate Army led by General Robert E. Lee. They clashed for a long, tragic, three days, but at a costly expense of human life. The American Civil War was one of the most significant battles that the United States has ever been engaged in. On the lines, there were brothers