CS 2401: SOFTWARE ENGINEERING 1 UNIT 4 DISCUSSION ASSIGNMENT Discuss the 4+1 model of software engineering This is The 4+ 1 Model of a systems architecture in year 1995 the person name called Philippe question developed a model that lets architects break down and look at a system according to five different views and this called the 4 +1 model. When you’re trying to look at something a large and complex as an entire system architecture it’s useful to be able to break down the hole in two sets of related parts you can use the 4+1 model to understand the role that each kind of UML diagram plays in the model that you’re creating as a whole as follow- Here the model depicts five use the logical view, the process view, the physical view, development view and use case view. These views of the system are concurrent and each offers its own …show more content…
So you could say that logical view describes the system’s object model. *Uml diagram that show the logical view include these class diagrams and class diagrams by the way are by far the most common kind of uml diagrams. you’ll be seeing and working with these a lot also state diagrams, object object diagrams, sequence diagrams, and communication diagrams. Each type of diagram has its own set of function statement definition. Process view- this describes a system’s processes, it shows any communication between those processes, explores what needs to happen inside the system. Particularly helpful when your system will have a number of simultaneous threads or processes. And uml activity diagrams represent the process view. Physical View- this models the system execution environment, maps software artifacts onto the hardware that hosts them. *Uml deployment diagrams are used to model the physical view of a
They show the interaction between objects to create a functioning system and emphasize what must happen in the system being modeled. Since behavior diagrams illustrate the behavior of a system, so they are used extensively to describe the functionality of software systems, and all
Provides a Systematic Method for observing children. It assists teachers, and parents in assessing individual skill development.
Activity diagrams are graphical representations of workflows of stepwise activities and actions with support for choice, iteration and concurrency. In the Unified Modeling Language, activity diagrams are intended to model both computational and organizational processes (i.e. workflows). Activity diagrams show the overall flow of control.
The wolf-moose relationship will first be modeled using UML. The purpose and requirements of the conceptual model will be captured using UML via use case diagrams. Furthermore, a class diagram will be used to document the system components, and a state diagram will be used to capture the possible states of a wolf and moose. The state diagram may also be used as a building block for possible Markov Chain and Bayesian Net models. Sequence and Activity diagrams will also be generated to model the dynamic behavior of the predator-prey relationship. This model will be particularly useful for building a dynamic model.
A flowchart is a diagram that depicts the “flow” of a program. It contains symbols that represent each step in the program (Pearson Education, 2012). It has 4 general structures:
This diagram is used to break down wide sorts of data and information into increasing levels of detailed. It maps
Process models are very important for developing the software in a systematic manner, such that it will be delivered within the time deadline and should also have proper quality. There are four major steps which includes Elicitation, Designing, Coding and Testing.
The Workflow Diagrams are designed to give a stepwise approach to navigation through the Work Processes and consist of sequential blocks of activities and milestones linked in a logical format. This provides a quick and easy reference.
The Logic Model is a visual model or tool, which is drawn from the basic structure of David Easton’s System Theory, used in describing the underlying concept of an object under study. Used by program evaluators and managers in assessing the effectiveness and efficiency of a specific program used for almost twenty years, the Logic Model involves on giving descriptions regarding the relationship of the inputs, program resources, outputs, and outcomes in addressing a specific problem or situation.
Structural Diagrams contains six Diagrams types: Object Diagram, Component Diagram, Class Diagram, Composite Structure Diagram, Deployment Diagram, and a Package Diagram.
The (UML) Unified Modeling Language is a general-purpose modeling language in the field of software application design, which is developed to supply a conventional means to envision the design of a system. It was produced and created by James Rumbaugh, Ivar Jacobson and Grady Booch at Rational Software during 1994-95 with additional advancement led by them with 1996. In 1997 it was embraced as a basic by the (OMG) Object Management Group, and has actually been handled by this company since. In 2000 the Unified Modeling Language was likewise approved by the (ISO) International Organization for Standardization as an authorized ISO specification. Ever since it has actually been regularly modified
This paper shows the ideas of database frameworks and also the outline of the utilization of Brought together Demonstrating Dialect (UML) as a standard documentation of true protests in creating item situated configuration procedure for PC applications. The UML is a device for determining programming frameworks that incorporate institutionalized charts to characterize outline and outwardly guide or model a product framework 's configuration and structure. UML graphs incorporate the utilization case outline, class chart, grouping graph, state diagram graph, movement chart, segment chart, and sending graph. The incorporation of these graphs to distinctive programming methods has been examined.
Main theme of this concept is to construct the diagrams at execution time, which ensures the continuity of notation starting from designing to execution. To better understand the run time behavior some of the extensions to the UML notation are proposed. For instance, JIVE protest charts additionally portray strategy enactments in question setting, and JIVE grouping graphs likewise bolster the idea of ‘out-of –model’ calls one of the important property of JIVE is that each point of the sequence diagram is related with the object diagram which would have been in effect at the point of . execution. Thus, the sequence diagrams behaves as a effective temporal navigation tool, that provide a chance to the user to move to any point of execution history and check the object diagram at the particular time.
Given the system upgrade initiated by ACME, it is proposed that the using a UML class model is likely to help in designing the policy administration system. Unified Modeling Language (UML) is a design tool usually useful in Object Oriented Software Engineering (OOSE) and encompasses a set of graphic notation techniques to create visual models of the system. The UML class diagram is a vital database modeling technique showing the types of objects in the system and various kinds of static relationships existing between them (Ambler, 2004). In the proposed model for ACME, there are three important relationships that are highlighted; associations, where a customer receives many quotations; subtypes, the sales representative is a kind of person and aggregation which upholds that the quotation is part of the policy contract.
Class diagram. A class diagram in the Unified Modeling Language (UML) is a type of static structure diagram that describes the structure of a system by showing the system 's classes, their attributes, operations (or methods), and the relationships among objects. It is used both for generalconceptual modelling of the systematics of the application, and for detailed modeling