UML (Unified Modeling Language)
The Unified Modeling Language is a standard language for specifying, visualizing, constructing, and documenting the artifacts of software systems, as well as for business modeling and other non-software systems. The key is to organize the design process in a way that clients, analysts, programmers and other involved in system development can understand and agree on. The UML provides the organization. The UML was released in 1997 as a method to diagram software design, by some of the best minds in object oriented analysis and design. It is by far the most exciting thin to happen to the software industry in recent years. Every other engineering discipline has a standard method of documentation. Electronic engineers have schematic diagrams; architects and mechanical engineers have blueprints and mechanical diagrams. The software industry now has UML.
There are different types of UML diagrams. Each UML diagram is designed to let developers and customers view a software system from a different perspective and in varying degrees of abstraction. UML diagrams commonly created in visual modeling tools include: use case diagram which displays the relationship among actors and use cases. Class case diagram models class structure and contents using design elements such as classes, packages and objects. It also displays relationships such as containment, inheritance, associations and others. Sequence diagram displays the time sequence of the objects participation in the interaction. This consists of the vertical dimension (time) and horizontal dimension (different objects). Collaboration diagram displays an interaction organized around the objects and their links to one another. Numbers are used to show the sequence of messages. State diagram displays the sequences of states that an object of an interaction goes through during its life response to received stimuli, together with its response and actions. Activity diagram displays a special state diagram where most of the states are action states and most of the transitions are triggered by completion of the actions in the source states. This diagram focuses on flows driven by internal processing.
An organization chart is a diagram that represents the positions and relationship within an organization.
Stage 3 involves creating an Architectural Model version of the whole system including sub systems. A Viewpoint Hierarchy shows a skeleton version of the system which can be ins...
CMMI was developed by a group of experts from industry, government, and the Software Engineering Institute (SEI) at Carnegie Mellon University. The main sponsors ...
The explosive impact of computers and information technology on our everyday lives has generated a need to design and develop new computer software systems and to incorporate new technologies in a rapidly growing range of applications. The tasks performed by workers known as computer software engineers evolve quickly, reflecting new areas of specialization or changes in technology, as well as the preferences and practices of employers. Computer software engineers apply the principles and techniques of computer science, engineering, and mathematical analysis to the design, development, testing, and evaluation of the software and systems that enable computers to perform their many applications. (1)
After all requirements have been gathered for a proposed system, they must be modeled. Models are created for visually represent the planned system so that business requirements can easily be associated with system items to ensure that all requirements have been completely and accurately gathered. In this paper, I will be discussing two types of modeling, and that is Physical modeling and Logical modeling.
Every single program will be able to create a virtual diagram and outline of the concept being implemented on the printer. Then the program divides the concept into digital ...
A documentation framework is essential for any large project; hence, RUP describes how to document functionality, constraints, design decisions and business requirements. Use Cases and Scenarios, are examples of artifacts prescribed by the process and have been found to be very effective at both capturing functional requirements and providing coherent threads throughout the development and deployment of the system.
Hall, T., Strangman, N., & Mayer, A. (2009, February 11). Differentiated Instruction and Implications for UDL Implementation. Retrieved March 20, 2010, from CAST: http://www.cast.org/publications/ncac/ncac_diffinstructudl.html
Multiview looks at the human activity within the organisation and analyses it in order to determine a problem theme. Using diagrams to give an overview of human activity within departments make it easier for users to pinpoint discrepancies with workflows. Once identified, users of the system can assist the developers to make the necessary changes that will increase efficiency with human activity.
The solution illustrates the structure of the pattern through UML diagrams, textual descriptions that include the patterns collaborations and participants.
Use appropriate tools that support data gathering (e.g. affinity diagram, brainstorming, fishbone, flowchart, force field, how-how, interrelationship digraph)
A data flow diagram (DFD) is a model which shows visual representation. The representation is comprised of information through systems, data and actors. These focus on how data is changed and being used during the process. DFD’s describes the system in many different process execution or collaboration of different process together as single process or bunch of data made into pieces are used in one or more process. The drawback of DFD is that no decisions are exposed and the processes are not sequential. To the simplest, a data flow diagram shows the flow of data in and out the system as specified in the requirement. It also gives the details of storage of information. DFD’s do not show the time taken by a process to change its state by the whole system. These are much useful for the visualization of data processing in the system, as to look what, where and to which data is being transferred. The data items may flow from internal data source to external data source or vice versa. DFD will not follow any algorithm, order of each and every execution on different circumstances.
A Use-case diagrams are usually referred to as behavior diagrams used to describe a set of actions (use cases) that some system or systems (subject) should or can perform in collaboration with one or more external users of the system (actors). Each use case should provide some observable and valuable result to the actors or other stakeholders of the system. Use-case diagram contains the actor and the use case symbols, along with connection lines. Actors are similar to external entities; they exist outside the system. The term actor refers to a particular role of a user of the system. The main purpose of a use-case diagram is to show what system functions are performed for which actor. Roles of the actors in the system can be depicted.
Explain in around 600 words, citing any literature you have consulted, what is meant by these terms in relation of object-oriented software design, and explain how they relate to the design you developed in your group.
The activity flow chart shows the different steps that have been taken in a complex operation. By breaking the steps down, it becomes easier for the analyst and law enforcement organizations to identify the misconduct of a complicated operation. The activity flow chart is also used along with other charts to help further demonstrate probable activity.