Entries for 'speeditonline'

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The problem with many Unified Modeling Language (UML) educational texts is that they present the various concepts each in isolation; so you see a use case diagram for one problem domain, a class diagram for an entirely different problem domain, and you never get to see the important traceability between the diagrams.

In this case study we aim to put it right by working through a single problem from use cases and activity diagrams, through sequence diagrams and state diagrams, to class diagrams and component diagrams. We have arranged the case study as three distinct perspectives or aspects as follows.

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The UML Component Diagram along with the complementary UML Deployment Diagram shows how a software solution will be delivered and deployed in the form of interconnected components that interoperate via well-defined interfaces. You can think of this as analogous to how electronic components are wired together, and in this context you should consider that any one component may be replaced by a different but compatible component with no adverse effect.
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The UML State Diagram, sometimes known as the Statechart Diagram or Static Transition Diagram, defines the entire lifecycle of a business entity or object in terms of the messages it receives and the responses it makes from the moment of creation until the moment of destruction.
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A UML Use Case is an atomic system function with a well-defined and standardized specification, which is performed by or o behalf of a system user or ‘actor’. This article describes how a UML Use Case Specification should be written.
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About the Series This series of articles is designed to present the set of core UML diagrams in a way that emphasizes the important relationships between the different diagrams and the logical progression from one diagram to another. In this installment we progress from the UML Sequence Diagram to the UML Class Diagram. Introduction The UML Cla...
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A UML Sequence Diagram is used most commonly to show the realization of a use case in terms of interactions between business entities or software objects. This diagram therefore helps with the transition from non-object oriented activity diagrams and use case diagrams to the object-oriented paradigm of modern software development.
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The advantages of attaining a certification, such as the CBAP, are difficult to overstate; the benefits are numerous. If you have the necessary experience, the designation is likely within your reach. You can easily form a feasible plan (even using your analyst skills, if you wish) for applying for and achieving the CBAP, and boost the direction of your career today. 

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Prior to the creation of something as potentially complex and ubiquitous of a website, an analyst must create a thorough, precise set of requirements in consultation with the right subject matter experts and business stakeholders. But unless one is armed with the proper planning procedures and techniques, the prospect of creating requirements for something as vast as an online business presence or functioning e-commerce system (or both) can be intimidating.

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Use case diagrams are used to show the decomposition of a business problem or software solution into a set of discrete functions (the use cases) which can be enacted by or on behalf of users (the actors). In a nutshell, this diagram shows who (the actors) can do what (the use cases) when interacting with the software solution.

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Unified Modeling Language (UML) Activity Diagrams are rather like traditional flowcharts that may be used to describe the steps required to enact high level business processes or low level algorithms. From the software analyst’s perspective these diagrams are most useful for representing business processes, so this will be our focus here. Whereas activity diagrams are often relegated to the final chapters of the UML text books, I prefer to present them up-front as the logical starting point for any UML analysis and design endeavor.

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Many BAs are using the  BABOK which contains information about a Requirements Management process, from identifying organizational situations that give cause to a project, through to starting the requirements gathering process, to delivering a solution to the business or a client. TOGAF 9, from an Enterprise Architecture viewpoint, also provides some techniques to gather requirements to equally deliver business solutions. This paper illustrates the two processes, defines the mapping between the two approaches and identifies gaps in each.

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This article describes the Entity Relationship Diagram that allows you to document the structure of a database in terms of persistent entities and the relationships between them.  The Entity-Relationship Diagram (ERD) provides a way of graphically representing the logical relationships between entities in order to create a database schema to persist those entities.

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Before an organization releases a new piece of software or web feature to all of its customers or the general public, it will generally offer a limited audience a chance to test drive the feature and offer their feedback. This is generally known as a Beta launch...

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One of the most significant characteristics of an Agile engagement is that technical and business professionals work collaboratively to grow the system. The team agrees upon the goals for the project, as well as the order in which the requirements will be addressed on each of the sprints... At least one team member should have the role of “data advocate”; a person who wears the data hat...

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One of the soft skills that BABOK [1] specifies is communication, and for good reason—understanding and being properly understood is key to any profession, but especially business analysis, where details are king and unearthing them is meticulous work. And an analyst has multiple avenues of communication that affect her work.

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What Does a Technical Business analyst do?
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