It is quite evident, then that reducing data requirements mean lowering cost through reduced labor expense. Census Data Set — a whole population 2. For schedule to be effective, it must process several major characteristics: The duration of the training was from to Sue Jones social security number: PHP includes many open-source libraries and includes modules built in for accessing FTP and database servers.

Deitel and Paul J. Eliminate non-value added stages. For each user view identified a local conceptual data model would be built. Creating Innovative Products 2nd Edition. The other region representatives explained that they had put in a special one-time effort to develop data entry and storage formats for the diverse information requested by the head office to reduce future data crunching. Avoid bottlenecks when designing input should always be one of the objectives of the analyst. Salaried employees are paid a fixed weekly salary regardless of the number of hours worked, hourly employees are paid by the hour and receive overtime pay for all hours worked in excess of 40 hours, commission employees are paid a percentage of their sales and base-salary-plus-commission employees receive a base salary plus a percentage of their sales.

Next add the phrase implements ActionListener to the class header. A flight may involve aystem in airports. Security Features Cas is probably the main problem facing Internet developers. All organization is required to produce a certain amount of reports and forms as required by law. The name of Java source file is not arbitrary; it must be the same as the name of the public class defined in each file. The discipline of quantitatively describing the main features of a collection of data.

The compiler would generate errors in lines 56, 57 and 60, because getBaseSalary and setBaseSalary are not superclass methods and cannot be invoked on a superclass variable. Concepts in the analysis model fod is technology independent, are mapped onto implementing analyses and interfaces resulting in a model of the orient domain, i.


Object Oriented Modeling and Design

For the server side programming and other technical aspects of the design emphasis will be laid on such design concepts and principles as effective modularity high cohesion and low couplinginformation hiding and stepwise elaboration. To calculate an employee’s earnings, the program assigns the address of an employee’s object to a base class Employee pointer, then invokes the earnings function on that object. An X-bar control chart was introduced to track the average overtime per person per day.

All we need to do is create another thread for each file to Download. The payfoll criteria to judge feasibility are cost required and value to be attained.

It is performed by the software developer or paygoll during the construction phase of the software development lifecycle. A flight has a departure day and time and an arrival day and time. Note that the Employee constructor lines does not validate the social security number.

Sentence 9 A stopover has an arrival time and a departure time Stopover Objects: Use cases describe scenarios for standard domain functions that the system must accomplish. Implementing for Extensibility With polymorphism, we can thesis of the lowest animal and implement systems that are easily extensible—new classes can be added with little or no modification to the general portions of the program, as long as the new classes are part of the inheritance hierarchy that the program processes generically.


Case Study: Payroll System Using Polymorphism

Black box testing and 2. Technology and system feasibility: Secondly, the analyst can also affect error rates of an operation through design. Considering sustem vast hardware available nowadays, this would not pose any problems. A derived class can inherit interface or implementation from a base class. But this is contrary to the concept of having a virtual model. Java Application Source Code Java source code can be written with simple text editor.

case study for payroll system in ooad

For the particular salary, the values of all these fields are assigned. Under such a system, another challenge to management was quick generation of reports pertaining to the big number of employee base. Let us consider class Employee ‘s header file Fig.


Java How to Program, 7th Edition. System analyst must be aware of these new technologies and try to use these new output devices if possible. Registration Forgot your password? The acse method allows widgets GUI components to be added to the pane. We do not list base class Employee ‘s get and set functions because they are not overridden in any of the derived classeseach of these functions is inherited and used “as is” by each of the derived classes.

Some features of design may vary depending on whether the system is batch-oriented or on-line.

case study for payroll system in ooad

To learn more about class Classsee its online documentation at java. No such encryption algorithms.